Instrument Index

Alphabetical index of the current, future, and no longer operational (past) instruments in the CEOS Database.

Cancelled and no longer considered instruments can be viewed here.

174-K (Temperature and Humidity Profiler), No longer operational, ROSKOSMOS (ROSHYDROMET)
3MI (Multi-Viewing Multi-Channel Multi-Polarisation Imaging), Being developed, EUMETSAT (ESA)

AATSR (Advanced Along-Track Scanning Radiometer), No longer operational, UKSA
ABI (Advanced Baseline Imager), Operational, NOAA
ACC (Accelerometer), Operational, ESA
ACDL (Aerosol and Carbon Detection Lidar), Operational, CNSA
ACE-FTS (Atmospheric Chemistry Experiment (ACE) Fourier Transform Spectrometer), Operational, CSA
ACGS (Atmospheric Carbon dioxide Grating Spectrometer), No longer operational, NSMC-CMA (NRSCC)
ACRIM II (Active Cavity Radiometer Irradiance Monitor), No longer operational, NASA
ACRIM III (Active Cavity Radiometer Irradiance Monitor), No longer operational, NASA
ACX see: ACX (GeoXO Atmospheric Composition Instrument), Being developed, NOAA
A-DCS3 (Argos Advanced Data Collection System3 [aka ARGOS-3]), Operational, CNES (NASA, NOAA)
A-DCS4 (A-DCS4 [aka ARGOS-4]), Operational, CNES, NOAA (EUMETSAT, ISRO)
ADEOS Comms (Communications package for ADEOS), No longer operational, JAXA
ADS-B receiver (Automatic Dependent Surveillance–Broadcast receiver), Being developed, GISTDA
ADSB Receiver (GOMX4) (Automatic Dependent Surveillance–Broadcast receiver), No longer operational, ESA
Advanced DCS (Advanced Data Collection System), Proposed, ROSHYDROMET
Advanced GGAK-M (Advanced Module for Geophysical Measurements (SEM)), Proposed, ROSHYDROMET
Advanced GOCI (Advanced Geostationary Ocean Colour Imager [aka GOCI-II]), Operational, KARI, KIOST (ADS)
Advanced KMSS (Advanced Multispectral Imager (VIS)), Proposed, ROSHYDROMET
Advanced MSU-MR (Advanced Multispectral scanning imager-radiometer), Proposed, ROSHYDROMET
Advanced Radiomet (Advanced Radio-occultation receiver), Proposed, ROSHYDROMET
Advanced SAR (Advanced Synthetic Aperture Radar X band), Proposed, ROSHYDROMET
Advanced Scatterometer (Advanced Scatterometer), Proposed, ROSHYDROMET
AEISS (Advanced Electronic Image Scanning System), Operational, KARI (ASTRIUM)
AEISS-A (Advanced Electronic Image Scanning System-A), Operational, KARI (ASTRIUM)
AEISS-HR (Advanced Electronic Image Scanning System-High Resolution), Being developed, KARI (KAI)
AEISS-HR-A (Advanced Electronic Image Scanning System-High Resolution-A), Being developed, KARI
AGRI see: AGRI (Advanced Geosynchronous Radiation Imager), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
AHI (Advanced Himawari Imager), Operational, JMA
AHSI (The Advanced Hyperspectral Imager), Operational, CNSA
AIP (Advanced Ionospheric Probe), Operational, TASA
AIRMO Spectrometer (AIRMO Spectrometer), Being developed, AIRMO (ESA)
AIRS (Atmospheric Infra-red Sounder), Operational, NASA
AIS (AIS Receiver), Operational, NOSA
AIS (Automatic Identification System), Operational, UKSA (CSIRO)
AIS (Automatic Identification System), Operational, ESA
AIS (RCM) (Automated Identification System (RADARSAT Constellation)), Operational, CSA (DND)
AIS receiver (Automatic Identification System receiver), Being developed, GISTDA
AIS Receiver (GOMX4) (Automatic Identification System), No longer operational, ESA
AIS Receiver (MDASat-1) (Automatic Identification System Receiver (MDASat-1)), Operational, SANSA
AIS Receiver (ZACube-2) (Automatic Identification System Receiver (ZACube-2)), No longer operational, SANSA
AIS/IOT (AIS/IoT CubeSat Test Mission), Operational, NOSA
ALADIN (Atmospheric Laser Doppler Instrument), No longer operational, ESA
ALADIN-2 (Atmospheric Laser Doppler Instrument - 2), Proposed, ESA
ALI (Advanced Land Imager), No longer operational, NASA
ALI (Aerosol Limb Imager), Being developed, CSA (NASA, ECCC, USask, UQAM)
ALISS III (Advanced LISS III), Being developed, ISRO
ALISSA (Backscatter lidar), No longer operational, ROSKOSMOS
ALT (Radar Altimeter), Operational, NSOAS (CAST)
ALT (SeaSat) (Radar Altimeter), No longer operational, NASA
AltiKa (Ka-band Altimeter), Operational, CNES
ALTIUS Instrument (ALTIUS Instrument), Being developed, ESA
AMI see: AMI (Advanced Meteorological Imager), Operational, KMA (KARI)
AMI/SAR/Image (Active Microwave Instrumentation. Image Mode), No longer operational, ESA
AMI/SAR/Wave (Active Microwave Instrumentation. Wave mode), No longer operational, ESA
AMI/Scatterometer (Active Microwave Instrumentation. Wind mode), No longer operational, ESA
AMR (Advanced Microwave Radiometer), Operational, NASA (NOAA, CNES, EUMETSAT)
AMR-C (Advanced Microwave Radiometer for Climate), Operational, NASA (NOAA, ESA, EUMETSAT)
AMR-CR (Advanced Microwave Radiometer for Climate), Approved, NASA (NOAA, ESA, EUMETSAT)
AMR-S (AMR-S Two-Beam Microwave Radiometer), Operational, NASA (UKSA, CNES, CSA)
AMSI (Advanced Multi-Spectral Instrument), Being developed, ESA (COM)
AMSR (Advanced Microwave Scanning Radiometer), No longer operational, JAXA
AMSR2 (Advanced Microwave Scanning Radiometer 2), Operational, JAXA
AMSR3 (Advanced Microwave Scanning Radiometer 3), Being developed, JAXA
AMSR-E (Advanced Microwave Scanning Radiometer-EOS), No longer operational, JAXA (NASA)
AMSU-A (Advanced Microwave Sounding Unit-A), Operational, NOAA (UKSA)
AMSU-A (Advanced Microwave Sounding Unit-A), Operational, NASA
AMSU-B (Advanced Microwave Sounding Unit-B), No longer operational, NOAA (UKSA)
AOLCI (Advanced Ocean and Land Colour Imager), Being developed, ESA (EUMETSAT, COM)
AOPOD (Atmosphere Occultation and Precision Orbit Determination), No longer operational, KASI
AOS-Sky Lidar (Atmosphere Observing System-Sky lidar), Proposed, NASA
AOS-Sky Microwave Radiometer (Atmosphere Observing System-Sky Microwave Radiometer), Proposed, NASA
AOS-Sky Polarimeter (Atmosphere Observing System-Sky Polarimeter), Proposed, NASA
AOS-Sky Radar (Atmosphere Observing System-Sky Radar), Proposed, NASA
APAN (Advanced PAN), Being developed, ISRO
APS (Aerosol Polarimetry Sensor), No longer operational, NASA
APT (Automatic Picture Transimission), No longer operational, NOAA
Aquarius L-Band radiometer (Aquarius L-Band Radiometer), No longer operational, NASA (CONAE)
Aquarius L-Band Scatterometer (Aquarius L-Band Scatterometer), No longer operational, NASA (CONAE)
Argos (Argos), No longer operational, NOAA
ARGOS-3 see: A-DCS3 (Argos Advanced Data Collection System3), Operational, CNES (NASA, NOAA)
ARGOS-4 see: A-DCS4 (A-DCS4), Operational, CNES, NOAA (EUMETSAT, ISRO)
ARGUS 2000 (ARGUS 2000), Operational, Khalifa University (UAE SA, American University of Ras Al Khaimah)
Arina (Arina), No longer operational, ROSKOSMOS (ROSHYDROMET)
ASAR (Advanced Synthetic-Aperture Radar), No longer operational, ESA
ASAR (image mode) (Advanced Synthetic Aperture Radar (Image mode)), No longer operational, ESA
ASAR (wave mode) (Advanced Synthetic Aperture Radar (Wave mode)), No longer operational, ESA
ASCAT (Advanced Scatterometer), Operational, EUMETSAT (ESA)
ASI (Atmospheric Sounding Interferometer), Operational, CAST (NSMC-CMA, CNSA)
ASLSTR (Advanced Sea and Land Surface Temperature Radiometer), Being developed, ESA (EUMETSAT, COM)
ASM (Absolute Scalar Magnetometer), Operational, CNES
ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer), Operational, METI (NASA)
ATCOR (Atmospheric correction), Proposed, ISRO
ATLAS (Advanced Topographic Laser Altimeter System), Operational, NASA
ATLID (ATmospheric LIDar), Approved, ESA
AtmoLITE (AtmoLITE), Operational, NTU
ATMS (Advanced Technology Microwave Sounder), Operational, NASA (NOAA)
ATOVS (HIRS/3 + AMSU + AVHRR/3) (Advanced TIROS Operational Vertical Sounder), No longer operational, NOAA
ATSR (Along Track Scanning Radiometer), No longer operational, UKSA (CSIRO)
ATSR/M (ATSR/M), No longer operational, CNES
ATSR-2 (Along Track Scanning Radiometer - 2), No longer operational, UKSA (CSIRO)
AVCS (Advanced Vidicon Camera System), No longer operational, NOAA
AVHRR/1 (Advanced Very High Resolution Radiometer /1), No longer operational, NOAA
AVHRR/2 (Advanced Very High Resolution Radiometer/2), No longer operational, NOAA
AVHRR/3 (Advanced Very High Resolution Radiometer/3), Operational, EUMETSAT, NOAA
AVNIR (Advanced Visible and Near Infrared Radiometor), No longer operational, JAXA
AVNIR-2 (Advanced Visible and Near Infra-red Radiometer type 2), No longer operational, JAXA
Avrora-T (Opto-electronic equipment), Approved, ROSKOSMOS
AWFI (Advanced Wide Field Imager), No longer operational, INPE
AWiFS (Advanced Wide Field Sensor), Operational, ISRO
AWS Instrument (Arctic Weather Satellite Microwave Radiometer), Being developed, ESA

Balkan-1 (Balkan-1), No longer operational, ROSKOSMOS
Balkan-2 lidar (Balkan-2 lidar), No longer operational, ROSKOSMOS
BBR (EarthCARE) (BroadBand Radiometer (EarthCARE)), Approved, ESA
BGIS 2000 (Ball Global Imaging System 2000), No longer operational, Digital Globe
BIK-SD 1 (High resolution wide capture multispectral infraredoptical sensor), Proposed, ROSKOSMOS
BILSAT VNIR Multispectral (BILSAT VNIR Multispectral camera), No longer operational, TUBITAK
BILSAT VNIR Panchromatic (BILSAT VNIR Panchromatic camera), No longer operational, TUBITAK
BRK (On board retransmission complex), No longer operational, ROSKOSMOS
BRLK S-range (S-band Synthetic Aperture Radar), Operational, ROSKOSMOS
BTVK (Scanning television radiometer), No longer operational, ROSHYDROMET
BUFS-2 (Backscatter spectrometer/2), No longer operational, ROSKOSMOS
BUV (Backscatter Ultraviolet instrument), No longer operational, NASA

C2OMODO see: SAPHIR-NG (Sondeur Atmospherique du Profil d’Humidite Intertropicale par Radiometrie_New Generation), Being developed, CNES (NASA)
CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization), No longer operational, NASA
CAPI (Cloud and Aerosol Polarization Imager), No longer operational, NSMC-CMA (NRSCC)
CAR (High Resolution Camera), Approved, CONAE
CARBONITE-1 Imager (CARBONITE-1 Imager), No longer operational, UKSA
CARBONITE-2 Imager (CARBONITE-2 Imager), No longer operational, UKSA
CARMEN-1 (ICARE) (Influence of Space Radiation on Advanced Components), No longer operational, CNES (CONAE)
CARMEN-1 (SODAD) (Orbital System for an Active Detection of Debris), No longer operational, CNES (CONAE)
CATS (Cloud-Aerosol Transport System), No longer operational, NASA
C-Band SAR (C-Band Synthetic Aperture Radar), Operational, ESA
CCD (High Resolution CCD Camera), No longer operational, CAST (INPE)
CCD (HJ) (CCD camera), No longer operational, CAST
CCD (ZY Series) (CCD and multispectral imager), Operational, CRESDA
CCD camera (Charged Coupled Device Camera), No longer operational, ISRO
CCOR-1/-2 (Compact Coronagraph), Operational, NOAA (NASA)
CER (Coherent Electromagnetic Radio Tomography), Operational, ESA
CERES (Cloud and the Earth's Radiant Energy System), Operational, NASA
CERIA Camera (CERIA Camera (True Color)), Being developed, GISTDA
Chaika (Scanning IR radiometer), No longer operational, ROSKOSMOS
CHAMP GPS Sounder (GPS TurboRogue Space Receiver (TRSR)), No longer operational, NASA (DLR)
CHAMP Gravity Package (Accelerometer+GPS) (STAR Accelerometer), No longer operational, CNES
CHAMP Magnetometry Package (1 Scalar + 2 Vector Magnetometer) (Overhauser Magnetometer and Fluxgate Magnetometer), No longer operational, DLR
CHRIS (Compact High Resolution Imaging Spectrometer), No longer operational, ESA (UKSA)
CIP (Compact Ionosphere Probe), Operational, NTU
CIRC (Compact InfraRed Camera), Operational, JAXA
CIRC (ISS/JEM) (Compact InfraRed Camera (ISS/JEM)), No longer operational, JAXA
CLAES (Cryogenic Limb Array Etalon Spectrometer instrument), No longer operational, NASA
CLARA (Compact Lightweight Absolute Radiometer), Operational, NOSA
CLARREO Pathfinder Reflected Solar (CLARREO Pathfinder - RS), Being developed, NASA
CLIM (3-band CLoud Imager), Being developed, ESA (EUMETSAT, COM)
CO2I (Integrated CO2 & NO2 Imaging spectrometer), Being developed, ESA (EUMETSAT, COM)
COBAN (COBAN 8 Band multispectral camera ), No longer operational, TUBITAK
COCTS (China Ocean Colour & Temperature Scanner), Operational, CAST
COMIS (COMpact Imaging Spectrometer), No longer operational, KARI (SI)
Communications payload (Ka and UHF band) (Communications payload (Ka and UHF band)), No longer operational, CSIRO
Compact Advanced Payload Wide Swath (CAS500-4) (Compact Advanced Payload Wide Swath (CAS500-4)), Being developed, KARI
COR (Coronagraph), Proposed, NOAA
CORA-micro (CORA-micro), Operational, ASI (NOSA)
COSI (Corea SAR Instrument), Operational, KARI (TAS-i)
COSIS (COSIS), Approved, DLR
COWVR (Compact Ocean Wind Vector Radiometer), Operational, USSF (NASA)
CPR (CloudSat) (Cloud Profiling Radar (CPR)), No longer operational, NASA
CPR (EarthCARE) (Cloud Profiling Radar (EarthCARE)), Being developed, JAXA (NICT)
CrIS (Cross-track Infrared Sounder), Operational, NOAA
CSAR (Cryogenic Solar Absolute Radiometer), Being developed, ESA (UKSA)
C-SAR (C-Band Synthetic Aperture Radar), Operational, CRESDA
CSC FVM (CSC fluxgate vector magnetometer), No longer operational, DNSC
CSG SAR (COSMO-SkyMed di Seconda Generazione SAR), Operational, ASI (MoD (Italy))
CWFMS (Canadian Wildland Fire Monitoring Sensor), Being developed, CSA (NRCAN, ECCC)
CZCS (Coastal Zone Color Scanner), No longer operational, NASA
CZI (Coastal Zone Imager), Operational, CAST

DAR (INCUS) (Dynamic Atmospheric Radar), Being developed, NASA
DCIS (Data Collection and Interrogation Service), No longer operational, NOAA
DCP (Data Collecting Platform Transponder), No longer operational, CAST (INPE)
DCS (Data Collecting System Transponder), Operational, INPE
DCS (Data Collection System), Operational, ROSKOSMOS (ROSHYDROMET)
DCS (Data Collecting System Transponder), Operational, INPE (CAST)
DCS (GOES-R Series) (Data Collection System (NOAA, GOES-16)), Operational, NOAA
DCS (JAXA) (Data Collection System (JAXA)), No longer operational, JAXA
DCS (NOAA) (Data Collection System (NOAA)), No longer operational, NOAA
DCS (SABIA_MAR) (Data Collection System), Proposed, CONAE, AEB
DCS (SAC-C) (Data Collection System), No longer operational, CONAE
DCS (SAC-D) (Data Collection System), No longer operational, CONAE
DDMI (CYGNSS) (Delay Doppler Mapping Instrument (DDMI)), Operational, NASA (NOAA)
DDMR (Delay Doppler Mapping Receiver) see: SGR-ReSI-Z (Space GNSS Receiver - Remote Sensing Instrument (Zynq based)), Being developed, UKSA (ESA)
DELTA-2D (Multispectral microwave scanning radiometer), No longer operational, ROSHYDROMET
DESIS (DLR Earth Sensing Imaging Spectrometer), No longer operational, DLR
DGXX (Doppler Orbitography and Radio-positioning Integrated by Satellite-New Generation XX), Operational, CNES
DGXX-S (Doppler Orbitography and Radio-positioning Integrated by Satellite-New Generation XX-S), Operational, CNES
DMAC (DubaiSat-1 Medium Aperture Camera), No longer operational, MBRSC (UAE SA)
DMR (INCUS) (Dynamic Microwave Radiometer), Being developed, NASA
DOPI (DOPI), No longer operational, ROSKOSMOS
DORIS (Doppler Orbitography and Radio-positioning Integrated by Satellite), No longer operational, CNES
DORIS (SPOT) (Doppler Orbitography and Radio-positioning Integrated by Satellite (on SPOT)), No longer operational, CNES
DORIS-NG (Doppler Orbitography and Radio-positioning Integrated by Satellite-New Generation), Operational, CNES
DORIS-NG (SPOT) (Doppler Orbitography and Radio-positioning Integrated by Satellite-NG (on SPOT)), No longer operational, CNES
DPC-2 (Directional Polarization Camera - 2), Operational, CNSA
DPR (Dual-frequency Precipitation Radar), Operational, JAXA (NICT)
DRF (DRF), No longer operational, ROSKOSMOS
DRT-S&R (DRT-S&R), No longer operational, ISRO

ECHO-V (ECHO-V), No longer operational, ROSKOSMOS
EFI (Electric Field Instrument), Operational, ESA (CSA)
EGG (3-Axis Electrostatic Gravity Gradiometer), No longer operational, ESA
EHIC (Energetic Heavy Ion Composition Experiment), No longer operational, NOAA (USAF)
Electromagnetic Tracker (Electromagnetic Tracker), Operational, Unseenlabs
EMI-2 (Environment Monitoring Instrument-2), Operational, CNSA
EMIT (Earth Surface Mineral Dust Source Investigation), Operational, NASA
ENVISAT Comms (Communications package on ENVISAT), No longer operational, ESA
EOC (Electro-Optical Camera), No longer operational, KARI
EPIC (Earth Polychromatic Imaging Camera), Operational, NASA (NOAA)
ERBE (Earth Radiation Budget Experiment), No longer operational, NASA
ERM-1 (Earth Radiation Measurement), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
ERM-2 (Improved Earth Radiation Measurement), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
ERS (Earth Radiative Sensor), Being developed, UVSQ-LATMOS
ERS Comms (Communication package for ERS), No longer operational, ESA
ES (Electron Spectrometer), Operational, NOAA (NASA)
ESIP (Ionospheric plasma energy spectrometer), Approved, ROSKOSMOS
ESMR (Nimbus-5) (Electrically Scanning Microwave Radiometer), No longer operational, NASA
ETM+ (Enhanced Thematic Mapper Plus), No longer operational, USGS (NASA)
EXIS (Extreme Ultraviolet and X-ray Irradiance Sensors), Operational, NOAA

FAI (Fast Auroral Imager), Operational, ESA
FC (Faraday Cup), Operational, NASA
FCI (Flexible Combined Imager), Operational, EUMETSAT (ESA)
FEI (FORUM Embedded Imager [aka Thermal Imager]), Being developed, ESA
FLORIS (Fluorescence Imaging Spectrometer), Approved, ESA
Fluxgate magnetometer (Fluxgate magnetometer), No longer operational, CRCSS
FMPL-2 (Flexible Microwave Payload-2 ), No longer operational, ESA
Fourier Transform Spectrometer (Fourier Transform Spectrometer), Approved, ESA
FPR (Flat Plate Radiometer), No longer operational, NASA

Galassia-2 Camera (Galassia-2 Camera), Operational, NUS
GALS (Spectrometer of galactic cosmic rays), Approved, ROSKOSMOS
GAP (GPS receiver-based Attitude, Position, and profiling experiment (GAP)), Operational, ESA
GAS (Greenhouse gases Absorption Spectrometer), Operational, CAST (NSMC-CMA, CNSA)
GEDI (Global Ecosystem Dynamics Investigation Lidar), No longer operational, NASA
GEMS (Geostationary Environment Monitoring Spectrometer), Operational, KARI, NIER (BATC)
GEO SAR (Geosynchronous Synthetic Aperture Radar), Proposed, ASI
Geoton-L1 (1) (Geoton-L1), No longer operational, ROSKOSMOS (ROSHYDROMET)
Geoton-L1 (2) (Geoton-L1), Operational, ROSKOSMOS
GERB (Geostationary Earth Radiation Budget), Operational, EUMETSAT (RAL, ESA)
GFO-RA (GEOSat Follow-On Radar Altimeter), No longer operational, NASA
GGAK-E (Module for Geophysical Measurements), Operational, ROSKOSMOS (ROSHYDROMET)
GGAK-M (Module for Geophysical Measurements (SEM)), Operational, ROSKOSMOS (ROSHYDROMET)
GGAK-VE (Module for Geophysical Measurements), Operational, ROSKOSMOS (ROSHYDROMET)
GHMI (Geostationary HiMawari Imager), Approved, JMA
GHMS (Geostationary HiMawari Sounder), Approved, JMA
GID-12T (GID-12T), No longer operational, ROSKOSMOS
GIIRS (Geostationary Interferometric Infrared Sounder), Operational, NSMC-CMA
GLAS (Geoscience Laser Altimeter System), No longer operational, NASA
GLI (Global Imager), No longer operational, JAXA
GLIMR Instrument (Geosynchronous Littoral Imaging and Monitoring Radiometer (GLIMR)), Being developed, NASA
GLM (Geostationary Lightning Mapper), Operational, NOAA
GMI (GPM Microwave Imager), Operational, NASA
GMS Comms (Communications package on GMS), No longer operational, JAXA (JMA)
GNOS (GNSS Radio Occultation Sounder), Operational, CAST (NSMC-CMA, CNSA)
GNSS POD Receiver (Global Navigation Satellite Systems (GNSS) Precise Orbit Determination (POD) Receiver), Operational, ESA (COM)
GNSS Reflectometer see: SGR-ReSI-Z (Space GNSS Receiver - Remote Sensing Instrument (Zynq based)), Being developed, UKSA (ESA)
GNSS-R (Global Navigation Satellite System Reflectometry), Operational, TASA
GNSS-RO Receiver (Global Navigation Satellite Systems (GNSS)- Radio Occultation (RO) Receiver), Operational, NASA
GOCI (Geostationary Ocean Colour Imager), No longer operational, KARI, KIOST (ASTRIUM)
GOCI-II see: Advanced GOCI (Advanced Geostationary Ocean Colour Imager), Operational, KARI, KIOST (ADS)
GOES Comms (Communications package on GOES), Operational, NOAA
GOLPE (GPS Occultation and Passive reflection Experiment), No longer operational, NASA (CONAE)
GOME (Global Ozone Monitoring Experiment), No longer operational, ESA
GOME-2 (Global Ozone Monitoring Experiment - 2), Operational, EUMETSAT (ESA)
GOMOS (Global Ozone Monitoring by Occultation of Stars), No longer operational, ESA
GOX (Global Positioning Satellite Occultation Experiment (GOX)), No longer operational, NASA, TASA (JPL, UCAR)
GPS (ESA) (GPS Receiver), No longer operational, ESA
GPS receiver (GPS receiver), No longer operational, CRCSS
GPS Receiver (Swarm) (Global Positioning System (GPS) Receiver (Swarm)), Operational, ESA
GPSDR (GPS Demonstration Receiver), No longer operational, CONAE (NASA)
GPSP (Global Positioning System Payload), Operational, NASA
GPSRO (Oersted) (GPS Radio Occultation System), No longer operational, NASA
GPSRO (Terra-SAR) (GPS Radio Occultation System), Operational, NASA
GRACE instrument (GRACE instrument), No longer operational, NASA (DLR, GFZ, ESA)
GRAS (Global Navigation Satellite Systems (GNSS) Receiver for Atmospheric Sounding), Operational, EUMETSAT (ESA)
Greben (Radar altimeter), No longer operational, ROSKOSMOS
GSA (1) (Hyperspectral imaging equipment), Operational, ROSKOSMOS
GXI (GeoXO Imager), Being developed, NOAA
GXS (GeoXO Sounder), Being developed, NOAA

HALOE (Halogen Occultation Experiment), No longer operational, NASA
HARP2 (Hyper-Angular Rainbow Polarimeter), Operational, NASA (UMD)
HEPD (High Energy Particle Detector), Operational, ASI
HF Beacon Transmitter (HF Beacon Transmitter), No longer operational, SANSA
HICO (Hyperspectral Imager for the Coastal Ocean), No longer operational, NASA
High Resolution Imager (FORMOSAT-8) (High Resolution Imager (FORMOSAT-8)), Being developed, TASA
High resolution imager (PRSS-1) (High resolution imager (PRSS-1)), Operational, SUPARCO
High Resolution Optical Sensor (CAS500-1) (High Resolution Optical Sensor (CAS500-1)), Operational, KARI (NGII)
High Resolution Optical Sensor (CAS500-2) (High Resolution Optical Sensor (CAS500-2)), Approved, KAI (NGII, KARI)
HighRes MS Camera (NEO-1) (High Resolution Multispectral Camera (NEO-1)), Being developed, LAPAN
Himawari Comms (Communications package for Himawari), Operational, JMA
Himawari DCS (Data Collection System for Himawari), Operational, JMA
HiRAIS (High-Resolution Advanced Imaging System), Operational, MBRSC (UAE SA)
HIRAS (Hyperspectral Infrared Atmospheric Sounder), Operational, NRSCC (CNSA, CAST)
HiRDLS (High Resolution Dynamics Limb Sounder), No longer operational, NASA (UKSA)
HiRI (High-Resolution Imager), Operational, CNES
HIRS/2 (High Resolution Infra-red Sounder/2), No longer operational, NOAA
HIRS/3 (High Resolution Infra-red Sounder/3), No longer operational, NOAA
HIRS/4 (High Resolution Infra-red Sounder/4), Operational, EUMETSAT, NOAA
HIS (Hyperspectral imaging Spectrometer), Being developed, ESA (UKSA)
HPS (Hyper-Spectrometer), No longer operational, ROSKOSMOS (ROSHYDROMET)
HRC (High Resolution Camera), No longer operational, CAST (INPE)
HRC (High Resolution Camera), No longer operational, ESA
HRDI (High Resolution Doppler Imager), No longer operational, NASA
HRG (HRG), No longer operational, CNES
HRIR (High Resolution Infrared Radiometer), No longer operational, NASA
HRMX (High Resolution Multi Spectral), Operational, ISRO
HRMX-TIR (High resoultion Mx TIR), No longer operational, ISRO
HRMX-VNIR (High Resolution MX-VNIR), No longer operational, ISRO
HRS (High Resolution Stereoscope), No longer operational, CNES
HRTC (High Resolution Panchromatic Camera), No longer operational, CONAE
HRV (High Resolution Visible), No longer operational, CNES
HRVIR (High Resolution Visible and Infra-red), No longer operational, CNES (SNSA)
HSB (Humidity Sounder for Brazil), No longer operational, INPE (NASA)
HSC (High Sensitivity Camera), Proposed, CONAE, AEB
HSC (SAC-D/Aquarius) (High Sensitivity Camera), No longer operational, CONAE
HSI (Hyperspectral Imager), Operational, DLR
HSI (HyperSpectral Instrument), Being developed, ESA (COM)
HSI (HJ-1A) (Hyper Spectrum Imager), No longer operational, CAST
HSI SWIR (GESat GEN2 hyperspectral SWIR instrument), Being developed, Absolut Sensing
HSI-2 (HJ-2A) (Hyper Spectrum Imager 2), Operational, CAST
HSRS (Hot Spot Recognition System), No longer operational, DLR
HSRS (Hot Spot Recognition System (Imaging mulit-spectral radiometer)), No longer operational, DLR
HSRS (FireBIRD 1 (TET-1)) (Hot Spot Recognition System (FireBIRD 1 (TET-1))), No longer operational, DLR
HSTC (High Sensitivity Technological Camera), No longer operational, CONAE
HYC (HYperspectral Camera), Operational, ASI
HYC2 (HYperspectral Camera 2), Being developed, ASI (NASA)
HyperCube Instrument (HyperCube Instrument), Being developed, L3Harris
Hyperion (Hyperspectral Imager), No longer operational, NASA
HyperScout (Hyperspectral VNIR imager), No longer operational, ESA (NSO)
HyperScout - MUSPEC (Hyperspectral VNIR imager with onboard MUSPEC calibrators), Being developed, NSO
HyperScout-2 (Hyperspectral VNIR and multispectral TIR imager), No longer operational, ESA (NSO)
Hyperspectral Detector (Hyperspectral Detector), Operational, CAST
HySI (IMS-1) (Hyperspectral Imager (IMS-1)), No longer operational, ISRO
HYSI-SWIR (Hyperspectral SWIR), No longer operational, ISRO
HYSI-VNIR (Hyperspectral VNIR), No longer operational, ISRO

IAP (Instrument for plasma analysis), No longer operational, CNES
IASI (Infrared Atmospheric Sounding Interferometer), Operational, EUMETSAT (CNES)
IASI-NG (Infrared Atmospheric Sounding Interferometer - New Generation), Being developed, EUMETSAT (CNES)
ICARE (Influence of Space Radiation on Advanced Components), No longer operational, CNES (CONAE)
ICE (Instrument for Electric Field), No longer operational, CNES
ICI (Ice Cloud Imager), Being developed, EUMETSAT (ESA)
IDEE (Instruments for the Detection of high-Energy Electrons), No longer operational, CNES
IDP (Instrument For Plasma Detection), No longer operational, CNES
IIR (Imaging Infrared Radiometer), No longer operational, CNES
IIS (Interferometric Infrared Sounder), No longer operational, NRSCC
IKAR-D (Multispectral microwave scanner), No longer operational, ROSKOSMOS
IKAR-N (Multispectral microwave scanner), No longer operational, ROSKOSMOS
IKAR-P (Multispectral microwave scanner), No longer operational, ROSKOSMOS
IKFS-2 (IR-Fourier spectrometer), Operational, ROSKOSMOS (ROSHYDROMET)
IKFS-3 (Advanced Fourier spectrometer), Proposed, ROSHYDROMET
ILAS (Improved Limb Atmospheric Spectrometer), No longer operational, MOE (Japan) (JAXA)
ILAS-II (Improved Limb Atmospheric Spectrometer-II), No longer operational, MOE (Japan) (JAXA)
Imager (Imager), Operational, NOAA
IMAGER (Imager/MTSAT), No longer operational, JMA
Imager (INSAT 3D) (Very High Resolution Radiometer), Operational, ISRO
Imaging Microwave Radiometer (Imaging Microwave Radiometer), Being developed, ESA (COM)
IME-BF (IME-BF), No longer operational, CNES
IME-HF (IME-HF), No longer operational, CNES
IMG (Inferometric Monitor of Greenhouse gases), No longer operational, MITI (Japan) (JAXA)
IMM (IMM), No longer operational, CNES
IMSC (Instrument Search Coil Magnetometer), No longer operational, CNES
INES (Italian Navigation Experiment), No longer operational, ASI (CONAE)
Infrared Earth Horizon Sensor (Infrared Earth Horizon Sensor), Operational, CAST
Infrared Scanning Radiometer (Infrared Scanning Radiometer), Operational, CAST
IPDA LIDAR (Integrated Path Differential Absorption Light Detection and Ranging Instrument), Approved, DLR (CNES)
IR (HJ-1B) (Infrared Camera), No longer operational, CAST
IR Camera (ZY-1-02E) (Longwave infrared camera), Operational, CRESDA
IRAS (InfraRed Atmospheric Sounder), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
IRIS (Infrared Interferometer Spectrometer instrument), No longer operational, NASA
IRIS (Interferometric Radar Altimeter for Ice and Snow), Being developed, ESA (COM)
IRIS Imager (IRIS Imager), Operational, NTU
IRM (Imaging and Rapid-scanning ion Mass spectrometer), Operational, ESA
IR-MSS (Infrared Multispectral Scanner), No longer operational, CAST (INPE)
IRMSS-2 (HJ-2) (Infrared Multispectral Scanner - 2), Operational, CAST
IRS (Thermal and Multispectral Scanner), Operational, CAST (INPE)
IRS (Infra-Red Sounder), Being developed, EUMETSAT (ESA)
IRS (SJ-9B) (Infrared scanner), No longer operational, CRESDA
ISAMS (Improved Stratospheric and Mesospheric Sounder instrument), No longer operational, NASA
iSIM-90 imager (iSIM-90 imager), Operational, SATLANTIS
ISL (Langmuir probes), No longer operational, CNES
ISP (ISP), No longer operational, ROSKOSMOS
IST (Italian Star Tracker), No longer operational, ASI (CONAE)
ISTOK-1 (Infra-red Spectrometer), No longer operational, ROSKOSMOS
ITPR (Infrared Temperature Profile Radiometer), No longer operational, NASA
IVM (Ion Velocity Meter), Operational, NOAA (UCAR)

JAMI (Japanese Advanced Meteorological Imager), No longer operational, JMA
JAXA Ku-Band Doppler Radar (Precipitation Measuring Mission), Being developed, JAXA (NASA)
JERS-1 Comms (Communications package for JERS-1), No longer operational, JAXA
JMR (JASON Microwave Radiometer), No longer operational, NASA

Ka-band Radar Interferometer (KaRIn) (Ka-band Radar Interferometer (KaRIn)), Operational, NASA (CNES)
Kasatka-R (Kasatka-R), Approved, ROSKOSMOS
Kent Ridge 1 Hyperspectral Imager (Kent Ridge 1 Hyperspectral Imager), Operational, NUS
Kent Ridge 1 Video Camera (Kent Ridge 1 Video Camera), Operational, NUS
KFA-1000 (Photographic camera), No longer operational, ROSKOSMOS
KFA-200 (Photographic camera), No longer operational, ROSKOSMOS
KFA-3000 (Photographic camera), No longer operational, ROSKOSMOS
KGI-4C (Module for Geophysical Measurements), No longer operational, ROSHYDROMET
KHCS (KhalifaSat Camera System), Operational, MBRSC (UAE SA)
Klimat (Scanning IR radiometer), No longer operational, ROSHYDROMET
Klimat-2 (Scanning IR radiometer), No longer operational, ROSHYDROMET
K-line Imager (K-line Imager), No longer operational, SANSA
KMSS (Multispectral Imager (VIS) system), Operational, ROSKOSMOS (ROSHYDROMET)
KONDOR-2 (Data collection and transmission system), No longer operational, ROSHYDROMET
KShMSA-VR (High resolution wide capture multispectral optical sensor), Operational, ROSKOSMOS

LAERT (Low-frequency radar), Approved, ROSKOSMOS
Lagrange (LABEN GNSS Receiver for Advanced Navigation, Geodesy and Experiments), No longer operational, ASI
Land Surface Temperature Radiometer (Land Surface Temperature Radiometer), Being developed, ESA (COM)
LandIS (Landsat Next Instrument Suite), Proposed, NASA (USGS)
Laser Radar (Laser Radar), Operational, CAST
Laser Reflectors (Laser Reflectors), Operational, CNES
Laser Reflectors (ESA) (Laser Reflectors), Operational, ESA
L-band Radar (SMAP) (L-band Synthetic Aperture Radar (SMAP)), No longer operational, NASA
L-band Radiometer (SMAP) (L-band Radiometer (SMAP)), Operational, NASA
L-band SAR (L-band Synthetic Apature Radar), No longer operational, JAXA (METI)
L-Band SAR (L-Band SAR), No longer operational, NASA
L-Band SAR (L-Band Synthetic Aperture Radar), Proposed, DLR (HRC)
L-band SAR (L-band Synthetic Aperture Radar), Being developed, ESA (COM)
L-band SAR (NISAR) (L-band Synthetic Aperture Radar (SAR) (NISAR)), Approved, NASA (ISRO)
LCCRA (LARES) (Laser Corner Cube Reflector Assembly), Operational, ASI
LCCRA (LARES-2) (Laser Corner Cube Reflector Assembly), Operational, ASI
LEISA AC (LEISA Atmospheric Corrector), No longer operational, NASA
LEOCAM (LightHaus Photonics’ Electro-Optical Camera), Being developed, NTU
LI (Lightning Imager), Operational, EUMETSAT (ESA)
Libera (Libera), Being developed, NASA
LIMS (Limb Infrared Monitor of the Stratosphere), No longer operational, NASA
LIS (Lightning Imaging Sensor), No longer operational, NASA
LIS (Lightning Imaging Sensor), No longer operational, NASA
LISS-I (Linear imaging Self Scanner - I), No longer operational, ISRO
LISS-II (Linear Imaging Self Scanner - II), No longer operational, ISRO
LISS-III (IRS) (Linear Imaging Self Scanner - III (IRS)), No longer operational, ISRO
LISS-III (Resourcesat) (Linear Imaging Self Scanner - III (Resourcesat)), Operational, ISRO
LISS-IV (Linear Imaging Self Scanner - IV), Operational, ISRO
LISS-V (Linear Imaging Self Scanner-V), Being developed, ISRO
LiV HYSI (Limb Viewing Hyperspectral Imager VNIR), No longer operational, ISRO
LLI (Low Light Imager), Being developed, NDRE (NOSA)
LMI (Lightning Mapping Imager), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
LOTUSat-1 SAR (LOTUSat-1 SAR), Being developed, VAST (NEC, Sumitomo)
LRA (Laser Retroreflector Array), Operational, NASA (ASI)
LRA (LAGEOS) (Laser Retroreflector Array), Operational, ASI
LRA (Sentinel-6) (Laser Retroreflector Array (Sentinel-6)), Operational, NASA (NOAA, ESA, EUMETSAT)
LRI (Laser Ranging Instrument), Operational, NASA (DLR, GFZ)
LRIR (Limb Radiance Inversion Radiometer instrument), No longer operational, NASA
LRIT (Low-Rate Information Transmission), Operational, NOAA
LRR (Laser retro-Reflector), No longer operational, ESA
LRR (SeaSat) (Laser Retro-Reflector), No longer operational, NASA
LTI (Laser Tracking Instrument), Approved, ESA (NASA)

MAC (Medium-sized Aperture Camera), No longer operational, MYSA
MADRAS (Microwave Analysis and Detection of Rain and Atmospheric Structures), No longer operational, ISRO (CNES)
MAESTRO (Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation), Operational, CSA
Magnetometer (Magnetometer (heliospheric magnetic field)), Proposed, NOAA (NASA)
Magnetometer (GOES) (Magnetometer (GOES)), Operational, NOAA
MAIA (Multi-Angle Imager for Aerosols), Approved, NASA (ASI)
MAIA (Multi-Angle Imager for Aerosols), Being developed, ASI (NASA)
MAP (Multi-Angular Multi-band Polarimeter), Being developed, ESA (EUMETSAT, COM)
MAXIE (Magnetospheric Atmospheric X-ray Imaging Experiment), No longer operational, NOAA (USAF)
MAYAK (Dual frequency radio transmitter), Approved, ROSKOSMOS
MBEI (Multi-Band Earth Imager), Operational, NSAU
MCP (MicroCameras and Photometers), No longer operational, CNES
MedRes MS Camera (NEO-1) (Medium Resolution Multispectral Camera (NEO-1)), Being developed, LAPAN
MEIS (Meteorological Earth Imaging System), No longer operational, MYSA
MERIS (Medium-Resolution Imaging Spectrometer), No longer operational, ESA
MERSI (Medium Resolution Spectral Imager), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MERSI-2 (Improved Medium Resolution Spectral Imager), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MERSI-3 (Improved Medium Resolution Spectral Imager - 3), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MERSI-LL (Medium Resolution Spectral Imager - Low-Light), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MERSI-S (Improved Medium Resolution Spectral Imager - Simplified), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MESSR (Multispectral Electronic Self-Scanning Radiometer), No longer operational, JAXA
Meteosat Comms (Communications package for Meteosat), No longer operational, EUMETSAT
METimage (Multi Spectral Imager), Being developed, EUMETSAT (DLR)
MEXIC (MultiEXperiment Interface Controller), No longer operational, CNES
MGF (MaGnetic Field instrument), Operational, ESA
MHS (Microwave Humidity Sounder), Operational, EUMETSAT
MI (Meteorological Imager), No longer operational, KMA (L3Harris, KARI)
Microcarb (Microcarb), Being developed, CNES (UKSA)
MicroDragon SMI & TPI (MicroDragon SMI & TPI), No longer operational, VAST
Micro-LiDaR (Micro-LiDAR ), Being developed, AIRMO
MIPAS (Michelson Interferometric Passive Atmosphere Sounder), No longer operational, ESA
MIRAS (SMOS) (Microwave Imaging Radiometer using Aperture Synthesis (MIRAS)), Operational, ESA (CNES)
MIRIS (Multi-purpose IR Imaging System), No longer operational, SI (KASI)
MIRS (Middle IR Scanner), Operational, NSAU
MISR (Multi-angle Imaging SpectroRadiometer), Operational, NASA
MIVZA (Microwave scanning radiometer), No longer operational, ROSHYDROMET
MIVZA-M (Microwave scanning radiometer), No longer operational, ROSKOSMOS
MK-4 (MK-4), No longer operational, ROSKOSMOS
MK-4M (MK-4M), No longer operational, ROSKOSMOS
MLS (Microwave Limb Sounder (UARS)), No longer operational, NASA
MLS (EOS-Aura) (Microwave Limb Sounder (EOS-Aura)), Operational, NASA
MMP (Magnetic Mapping Payload), No longer operational, JPL, DNSC (CONAE)
MMRS (Multispectral Medium Resolution Scanner), No longer operational, CONAE
m-NLP (multi-Needle Langmuir Probe), Operational, NOSA
MODIS (MODerate-Resolution Imaging Spectroradiometer), Operational, NASA
MOLI Imager (MOLI Imager), Being developed, JAXA
MOLI Lidar (MOLI Lidar), Being developed, JAXA
MOPITT (Measurements Of Pollution In The Troposphere), Operational, CSA (NASA)
MOS (Modular Opto-electronic Scanner), No longer operational, ISRO (DARA)
MR-2000 (MR-2000), No longer operational, ROSKOSMOS
MR-2000M1 (Scanning visible radiometer), No longer operational, ROSHYDROMET
MR-900 (Scanning telephotometer), No longer operational, ROSKOSMOS
MR-900B (Scanning visual band telephotometer), No longer operational, ROSKOSMOS
MRIR (Medium Resolution Infrared Radiometer), No longer operational, NASA
MS (Multispectral Imager), Operational, DMI
MS (Multispectral Imager), No longer operational, TASA
MS (Multispectral Imager), No longer operational, GeoEye
MSC (Multi-Spectral Camera), Operational, KARI (E-LOP)
MSEIS (Multispectral Earth Imaging System), No longer operational, MYSA
MSG Comms (Communications package for MSG), Operational, EUMETSAT
MSGI-5EI (Multichannel System for Geoactive Emission Measurements), No longer operational, ROSHYDROMET
MSI (Multi Spectral Imager), No longer operational, DLR
MSI (Atlantic Constellation PF) (Multi-spectral imager (Atlantic Constellation Pathfinder)), Approved, UKSA
MSI (BJ-1) (Multispectral Imager), No longer operational, NRSCC (CAST)
MSI (BJ-2) (Multispectral Imager [aka SSTL-300 S1 Imager (MS)]), Operational, UKSA (NRSCC, 21AT)
MSI (EarthCARE) (Multi-Spectral Imager (EarthCARE)), Approved, ESA
MSI (LAPAN-A3) (LAPAN-A3 Multispectral Imager), Operational, LAPAN
MSI (Sentinel-2) (Multi-Spectral Instrument (Sentinel-2)), Operational, ESA (COM)
MSI (SumbandilaSat) (Multi-Spectral Imager (SumbandilaSat) [aka SumbandilaSat Imager]), No longer operational, SANSA (Uni of Stellenbosh)
MSMR (Multifrequency Scanning Microwave Radiometer), No longer operational, ISRO
MSR (Microwave Scanning Radiometer), No longer operational, JAXA
MSS (Multispectral imaging system), Operational, ROSKOSMOS
MSS (Landsat) (Multispectral Scanner), No longer operational, USGS (NASA)
MSTE-5E (Multichannel system of geoactive measurements), No longer operational, ROSHYDROMET
MSU (Microwave Sounding Unit), No longer operational, NOAA
MSU-E (Multispectral high resolution electronic scanner), No longer operational, ROSHYDROMET
MSU-E1 (Multispectral high resolution electronic scanner), No longer operational, ROSKOSMOS
MSU-E2 (Multispectral high resolution electronic scanner), No longer operational, ROSKOSMOS
MSU-EU (Multi-Spectral Radiometer with High Resolution), No longer operational, NSAU
MSU-GS (Multispectral scanning imager-radiometer), Operational, ROSKOSMOS (ROSHYDROMET)
MSU-GS/VE (Multispectral scanning imager-radiometer), Operational, ROSKOSMOS (ROSHYDROMET)
MSU-IK-SR (Multi-channel medium and far IR range radiometer), Operational, ROSKOSMOS
MSU-M (Multi-Spectral Low Resolution Scanning System), No longer operational, ROSKOSMOS (NSAU)
MSU-MR (Low-resolution multispectral scanning imager-radiometer), Operational, ROSKOSMOS (ROSHYDROMET)
MSU-S (Multi-Spectral Medium Resolution Scanning System), No longer operational, ROSKOSMOS (NSAU)
MSU-SK (Multispectral medium resolution conical scanner), No longer operational, ROSKOSMOS
MSU-SM (Multi-Spectral Medium Resolution Scanning System), No longer operational, ROSHYDROMET
MSU-V (Multispectral high resolution conical scanner), No longer operational, ROSKOSMOS
MTSAT Comms (Communications package for MTSAT), No longer operational, JMA
MTSAT DCS (Data Collection System for MTSAT), No longer operational, JMA
MTVZA-GY (Scanning microwave imager-sounder), Operational, ROSKOSMOS (ROSHYDROMET)
MTVZA-GY-MP (Advanced Scanning microwave imager-sounder), Proposed, ROSHYDROMET
MTVZA-OK (Scanning microwave radiometer), No longer operational, ROSHYDROMET
Multi-Angle Multi-Spectral Camera (Multi-Angle Multi-Spectral Camera), Operational, CAST
Multiview Thermal-Infared (Multiview Thermal-Infared), Approved, ESA
MUSPEC (Miniaturized Photonics-based Calibration Stimulus), Being developed, NSO
MUX (CBERS-4) (Multispectral CCD Camera), Operational, INPE (CAST)
MUX (CBERS-4A) (Multispectral CCD Camera), Operational, INPE (CAST)
MUX (GF-1) (Multispectral CCD Camera), Operational, CRESDA
MUX (GF-2) (Multispectral CCD Camera), Operational, CRESDA
MUX (SJ-9A) (Multispectral CCD Camera), No longer operational, CRESDA
MUX (ZY-3-01) (Multispectral CCD Camera), No longer operational, CRESDA
MUX (ZY-3-02) (Multispectral CCD Camera), Operational, CRESDA
MVIRI (METEOSAT Visible and Infra-Red Imager), No longer operational, EUMETSAT (ESA)
MVIRS (Moderate Resolution Visible and Infrared Imaging Spectroradiometer), Operational, NRSCC (CNSA, CAST)
MVISR (10 channels) (Multispectral Visible and Infra-red Scan Radiometer (10 channels)), No longer operational, NRSCC (NSMC-CMA, CAST)
MVISR (5 channels) (Multispectral Visible and Infra-red Scan Radiometer (5 channels)), No longer operational, CAST (NRSCC)
MWHS-1 (Micro-Wave Humidity Sounder), No longer operational, NRSCC (NSMC-CMA, CNSA, CAST)
MWHS-2 (Improved MicroWave Humidity Sounder), Operational, CAST (NSMC-CMA, CNSA)
MWI (Microwave Imager), Being developed, EUMETSAT (ESA)
MWI (Microwave Instrument), Operational, NASA
MWIR (GF-4) (Medium Wavelength Infrared Camera), Operational, CRESDA
MWIR Imager (Mid Wave Infrared Imager), No longer operational, SatVu
MWR (Microwave Radiometer), No longer operational, ESA
MWR (MicroWave Radiometer), No longer operational, CONAE
MWRI (Micro-Wave Radiation Imager), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
MWRI (Microwave Radiometer Imager), Operational, NSOAS
MWS (Microwave Sounder), Being developed, EUMETSAT (ESA)
MWTS-1 (Micro-Wave Temperature Sounder), No longer operational, NRSCC (NSMC-CMA, CNSA, CAST)
MWTS-2 (Micro-Wave Temperature Sounder-2), Operational, NRSCC (CNSA, CAST)
MX (Cartosat-3) (Multispectral VNIR), Operational, ISRO
MxT (Multi-spectral CCD Camera), No longer operational, ISRO

NACHOS Hyperspectral Imager (NACHOS Hyperspectral Imager), Operational, NASA (LANL)
NanoDragon Color camera & AIS receiver (NanoDragon Color camera & AIS receiver), No longer operational, VAST
NAOMI (MS) (New Astrosat Optical Modular Imager (MS)), Operational, GISTDA
NAOMI (PAN) (New Astrosat Optical Modular Imager (PAN)), Operational, GISTDA
NEMS (Nimbus-E Microwave Sounder), No longer operational, NASA
NigeriaSat 2 Remote Sensing (Med and High Res) (NigeriaSat 2 Remote Sensing (Med and High Res)), Operational, NASRDA
NigeriaSat Medium Resolution (NigeriaSat Remote Sensing (medium resolution)), No longer operational, NASRDA
NigeriaSat X Remote Sensing (Medium Resolution) (NigeriaSat X Remote Sensing (Medium Resolution)), Operational, NASRDA
NIRST (New Infrared Sensor Technology), No longer operational, CONAE (CSA)
NIR-SWIR (Multi-spectral Optical Camera - Near & Short Wave Infrared), Approved, CONAE, AEB
NISTAR (NIST Advanced Radiometer), Operational, NASA (NOAA)
NMS (Neutral Mass Spectrometer), Operational, JAXA (ESA)
NOAA Comms (Communications package for NOAA), Operational, NOAA
NRD (Navigation Radar Detector Test Mission), Operational, NDRE (NOSA)
NSCAT (NASA Scatterometer), No longer operational, NASA
NVK (Low-frequency wave complex), No longer operational, ROSKOSMOS
NVK (Low-frequency wave complex), Approved, ROSKOSMOS

OCI (Ocean Color Instrument), Operational, NASA
OCM (Oceansat-2) (Ocean Colour Monitor (Oceansat-2)), No longer operational, ISRO
OCM (Oceansat-3) (Ocean Colour Monitor (Oceansat-3)), Operational, ISRO
OCTS (Ocean Color and Temperature Scanner), No longer operational, JAXA
OEA (Optical-electronic equipment), No longer operational, ROSKOSMOS
OEA (Optical Electronic Apparatus), No longer operational, ROSKOSMOS (ROSHYDROMET)
OEK VR (Multispectral optoelectronic high resolution module), Approved, ROSKOSMOS
OLCI (Ocean and Land Colour Imager), Operational, ESA (COM)
OLI (Operational Land Imager), Operational, USGS (NASA)
OLI-2 (Operational Land Imager 2), Operational, USGS (NASA)
OLS (Operational Linescan System), Operational, NOAA (DoD (USA))
OMI (Ozone Measuring Instrument), Operational, NSO (FMI, NASA)
OMPS (Ozone Mapping and Profiler Suite), Operational, NOAA
OMPS-L (Ozone Mapping and Profiler Suite Limb Profiler), Operational, NASA (NOAA)
OMS (Ozone Monitoring Suite), TBD, CAST (NSMC-CMA, CNSA)
OPS (Optical Sensor), No longer operational, JAXA
OPS (Pan, Multi) (Wide-swath and high-resolution optical imager (Pan, Multi)), No longer operational, JAXA
Optical Instrument (CO3D) (Optical Instrument (CO3D)), Being developed, CNES
OSCAT (Oceansat-2 scatterometer), No longer operational, ISRO
OSIRIS (Optical Spectrograph and Infra-Red Imaging System), Operational, CSA (SNSA)
OSMI (Ocean Scanning Multispectral Imager), No longer operational, KARI
OTTER Instrument on SBG-TIR (Orbiting Terrestrial Thermal Emission Radiometer (OTTER) on SBG-TIR ), Being developed, NASA (ASI)
OV5682 (OV5682), No longer operational, FUTA (NASRDA)
Overhauser Magnetometer (OM), No longer operational, CNES
Ozon-M (Ozon-M), No longer operational, ROSKOSMOS

PALSAR (Phased Array type L-band Synthetic Aperture Radar), No longer operational, JAXA (METI)
PALSAR-2 (Phased Array type L-band Synthetic Aperture Radar-2), Operational, JAXA
PALSAR-3 (Phased Array type L-band Synthetic Aperture Radar-3), Being developed, JAXA
Pamela (Pamela), No longer operational, ROSKOSMOS
PAN (BJ-1) (Panchromatic Imager), No longer operational, NRSCC (CAST)
PAN (BJ-2) (Panchromatic Imager [aka SSTL-300 S1 Imager (PAN)]), Operational, UKSA (NRSCC, 21AT)
PAN (Cartosat-1) (Panchromatic Camera), No longer operational, ISRO
PAN (Cartosat-2) (Panchromatic Camera), No longer operational, ISRO
PAN (Cartosat-2A/2B) (Panchromatic Camera), Operational, ISRO
PAN (Cartosat-2E) (Panchromatic Camera), Operational, ISRO
PAN (Cartosat-3) (Panchromatic sensor), Operational, ISRO
PAN (CBERS-4) (Panchromatic and Multispectral Imager), Operational, CAST (INPE)
PAN (FORMOSAT) (Panchromatic Imager), No longer operational, TASA
PAN (GF-1) (Panchromatic and multispectral imager), Operational, CRESDA
PAN (GF-2) (Panchromatic and multispectral imager), Operational, CRESDA
PAN (IRS-1C/1D) (Panchromatic sensor), No longer operational, ISRO
PAN (SJ-9A) (Panchromatic and multispectral imager), No longer operational, CRESDA
PAN (ZY Series) (Panchromatic and multispectral imager), Operational, CRESDA
PAN CAMERA (Panchromatic Camera), Operational, ASI
PAN+MS (RGB+NIR) (SEOSAT/Ingenio PAN+MS (RGB+NIR)), No longer operational, CDTI (ESA)
Passive Synthetic Aperture Radar (Passive Synthetic Aperture Radar), Approved, ESA
Paz SAR-X (X Band Synthetic Aperture Radar), Operational, CDTI (HISDESAT)
P-Band SAR (P-Band Synthetic Aperture Radar), Being developed, ESA
Pelican (Planet Pelican Instrument), Operational, Planet
PEM (Particle Environment Monitor), No longer operational, NASA
PES (Total electron content meter), Approved, ROSKOSMOS
PHA (Pulse Height Analyzer), Operational, NOAA (NASA)
Phisat-1 (Phisat-1), No longer operational, ESA
PHyTIR (Prototype HyspIRI Thermal Infrared Radiometer (PHyTIR)), Operational, NASA (USGS)
PicoDragon color camera (PicoDragon color camera), No longer operational, VAST
PlasMag (Plasma-Magnetometer), Operational, NOAA (NASA)
PLT SAR (PLATiNO SAR), Being developed, ASI
Polarisation Imager (Polarisation Imager), Operational, CAST
POLDER (POLarization and Directionality of the Earth's Reflectances), No longer operational, CNES (JAXA)
POLDER-2 (POLarization and Directionality of the Earth's Reflectances), No longer operational, CNES (JAXA)
POLDER-P (POLarization and Directionality of the Earth's Reflectances (PARASOL version)), No longer operational, CNES
PolSIR (Polarized Submillimeter Ice-cloud Radiometer), Being developed, NASA
POSEIDON-1 (SSALT-1) (Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter)), No longer operational, CNES
POSEIDON-2 (SSALT-2) (Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter)), No longer operational, CNES
POSEIDON-3 (Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter)), No longer operational, CNES
POSEIDON-3B Altimeter (Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter)), Operational, CNES
POSEIDON-3C Altimeter (Positioning Ocean Solid Earth Ice Dynamics Orbiting Navigator (Single frequency solid state radar altimeter)), Operational, NASA
Poseidon-4 Altimeter (Poseidon-4 SAR Radar Altimeter), Operational, ESA (EUMETSAT, NASA, CNES)
Poseidon-5 Altimeter (Poseidon-5 SAR Radar Altimeter), Being developed, ESA (EUMETSAT, CNES)
POSP (Particulate Observing Scanning Polarimeter), Operational, CNSA
PR (Precipitation Radar), No longer operational, JAXA (NICT, NASA)
PR (Precipitation Radar), Operational, NSMC-CMA
PREMOS (PREcision Monitoring of Solar Variability), No longer operational, CNES
PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping), No longer operational, JAXA
PSA (Panchromatic imaging system), No longer operational, ROSKOSMOS
PSS (Panchromatic imaging system), Operational, ROSKOSMOS

None.

R-225 (Single channel microwave radiometer), No longer operational, ROSKOSMOS
R-400 (R-400), No longer operational, ROSKOSMOS
R-600 (Single channel microwave radiometer), No longer operational, ROSKOSMOS
RA (Radar Altimeter), No longer operational, ESA
RA-2 (Radar Altimeter - 2), No longer operational, ESA
RaBIT (Radio Beacon for Ionospheric Tomography), No longer operational, ISRO
RapidScat (Rapid Scatterometer), No longer operational, NASA
RASAT VIS Multispectral (RASAT VIS Multispectral camera), No longer operational, TUBITAK
RASAT VIS Panchromatic (RASAR VIS Panchromatic camera), No longer operational, TUBITAK
RBE (RBE), No longer operational, ROSKOSMOS
RCHA (RCHA), No longer operational, ROSKOSMOS
RDSA (Multispectral Imager), No longer operational, ROSKOSMOS
RF Beacon (Radio Frequency Beacon), Operational, NOAA (UCAR)
RIS (Retroreflector in Space), No longer operational, JAXA
RLSBO (Side looking microwave radar), No longer operational, ROSKOSMOS (NIIRI)
RM-08 (Scanning Microwave Radiometer), No longer operational, ROSHYDROMET (NSAU)
RMK-2 (Radiation Measurement Complex), No longer operational, ROSKOSMOS
RMS (Radiation measurement system), No longer operational, ROSKOSMOS
RMS (Radiation Monitors for Space Weather), Approved, NICT (JMA)
RO (RO), Being developed, EUMETSAT (ESA)
ROSA (Radio Occultation Sounder for the Atmosphere), No longer operational, ASI (ISRO)
ROSA (Radio Occultation Sensor for Atmosphere), No longer operational, ISRO
ROSA (Radio Occultation Sounder for the Atmosphere), No longer operational, ASI (CONAE)
RRA (Retroreflector Array), Operational, CNES
RRI (Radio Receiver Instrument), Operational, ESA

S&R (GOES) (Search and Rescue), Operational, NOAA
S&R (NOAA) (Search and Rescue Satellite Aided Tracking), Operational, NOAA
SAGE I (Stratospheric Aerosol and Gas Experiment I instrument), No longer operational, NASA
SAGE II (Stratospheric Aerosol and Gas Experiment-II), No longer operational, NASA (ROSKOSMOS)
SAGE III (Stratospheric Aerosol and Gas Experiment-III), No longer operational, NASA (ROSKOSMOS)
SAGE-III (Stratospheric Aerosol and Gas Experiment), Operational, NASA
SAMS (Stratospheric and Mesospheric Sounder instrument), No longer operational, NASA
SAOOH (Swath Altimeter for Oceanography and Operational Hydrology), Being developed, ESA (COM)
SAPHIR (Sondeur Atmospherique du Profil'd’Humidite Intertropicale par Radiometrie), No longer operational, CNES
SAPHIR-NG (Sondeur Atmospherique du Profil d’Humidite Intertropicale par Radiometrie_New Generation [aka C2OMODO]), Being developed, CNES (NASA)
SAR (Synthetic Aperture Radar X band), No longer operational, ROSHYDROMET
SAR (CAS500-5) (SAR (CAS500-5)), Being developed, KARI
SAR (FORMOSAT-9) (Sythetic Aperture Radar (FORMOSAT-9)), Being developed, TASA
SAR (KOMPSAT-6) (SAR (KOMPSAT-6)), Being developed, KARI
SAR (NeuSAR) (SAR (NeuSAR)), Operational, OSTIn (DSO)
SAR (RADARSAT) (Synthetic Aperture Radar (CSA) C band), No longer operational, CSA
SAR (RADARSAT-2) (Synthetic Aperture Radar (SAR) C band), Operational, CSA
SAR (RCM) (Synthetic Aperture Radar (SAR) C band), Operational, CSA (NRCAN, DND, DFO, AAFC, ECCC, PSC)
SAR (RISAT) (Synthetic Aperature Radiometer (RISAT)), Operational, ISRO
SAR 2000 (Synthetic Aperture Radar - 2000), Operational, ASI (MoD (Italy))
SAR-10 (Synthetic Aperture Radar), No longer operational, ROSKOSMOS (NPO PLANETA)
SAR-3 (Synthetic Aperture Radar), No longer operational, ROSKOSMOS
SAR-70 (Synthetic Aperture Radar), No longer operational, ROSKOSMOS (NPO PLANETA)
SAR-L (L-Band Synthetic Aperture Radar), Operational, CONAE
SAR-X (Synthetic Aperature Radiometer (RISAT-2)), No longer operational, ISRO
SASS (SeaSat-A Scatterometer System), No longer operational, NASA
S-Band SAR (S-Band Synthetic Aperture Radar), No longer operational, CAST
S-band SAR (S-band SAR), Operational, UKSA (CSIRO)
S-band SAR (NISAR) (S-band Synthetic Aperture Radar (SAR) (NISAR)), Approved, ISRO
SBG VSWIR Instrument (Visible and Short-Wave Infrared (VSWIR) Instrument), Being developed, NASA
SBUV/1 (Solar Backscatter Ultraviolet 2 instrument), No longer operational, NASA
SBUV/2 (Solar Backscattter Ultra-Violet Instrument/2), Operational, NOAA
SBUV/3 (Solar Backscattter Ultra-Violet Instrument/3), No longer operational, NOAA
SCA (SCA), Being developed, EUMETSAT (ESA)
SCAMP (SCAMP), No longer operational, FUTA (NASRDA)
ScaRaB (Scanner for Earth's Radiation Budget), No longer operational, CNES
ScaRaB/MV2 (Scanner for Earth's Radiation Budget), No longer operational, CNES (NPO PLANETA)
SCAT (Scatterometer), Operational, NSOAS
SCAT (Wind SCATerometer), Operational, CNES
Scatterometer (Oceansat-3) (Scatterometer (Oceansat-3)), Operational, ISRO
Scatterometer (Scatsat-1) (Scatterometer (Scatsat-1)), No longer operational, ISRO
ScepterSat Instrument (ScepterSat Instrument), Proposed, Scepter
SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography), No longer operational, ESA (DLR)
SCMR (Surface Composition Mapping Radiometer), No longer operational, NASA
SCR (Nimbus-5) (Selective Chopper Radiometer), No longer operational, NASA
SeaWinds (SeaWinds), No longer operational, NASA
SEI (Suprathermal Electron Imager), Operational, ESA
SEISS (Space Environment In Situ Suite), Operational, NOAA
SEM (Space Environment Monitor), No longer operational, NRSCC (NSMC-CMA, CNSA, CAST)
SEM (GOES) (Space Environment Monitor), Operational, NOAA
SEM (JAXA) (Space Environment Monitor (JAXA)), No longer operational, JAXA
SEM (POES) (Space Environment Monitor), Operational, NOAA
SEM/EPS (Energetic Particles Sensor), No longer operational, NOAA
SEM/HEPAD (High Energy Proton and Alpha Particles Detector), No longer operational, NOAA
SEM/MAG (Magnetometer), No longer operational, NOAA
SEM/MEPED (Medium Energy Proton Detector ), No longer operational, NOAA
SEM/TED (Total Energy Detector), No longer operational, NOAA
SEM/XRS-EUV (X-Ray Sensor - Extreme Ultra-Violet Sensor), No longer operational, NOAA
SEP (Space Environment Monitoring Instrument Package), Operational, NSMC-CMA
SES (Space Environment Suite, improved SEM), Operational, CAST (NSMC-CMA, CNSA)
Severyanin-M (Severyanin-M), Operational, ROSKOSMOS (ROSHYDROMET)
SEVIRI (Spinning Enhanced Visible and Infra-Red Imager), Operational, EUMETSAT (ESA)
SFM-2 (UV limb spectrometer), No longer operational, ROSHYDROMET
SG (Gamma-spectrometer), Approved, ROSKOSMOS
SGLI (Second-generation Global Imager), Operational, JAXA
SGR-ReSI (Space GNSS Receiver - Remote Sensing Instrument), No longer operational, UKSA
SGR-ReSI-CDHS (Space GNSS Receiver - Remote Sensing Instrument, CoreDHS avionics), Operational, UKSA (ESA)
SGR-ReSI-Z (Space GNSS Receiver - Remote Sensing Instrument (Zynq based) [aka DDMR (Delay Doppler Mapping Receiver)]), Being developed, UKSA (ESA)
SGR-ReSI-Z (Space GNSS Receiver - Remote Sensing Instrument (Zynq based) [aka GNSS Reflectometer]), Being developed, UKSA (ESA)
SHOW (Spatial Heterodyne Observations of Water), Being developed, CSA (NASA, ECCC, USask, UQAM)
SI (Star Imager), No longer operational, DNSC
SILVA (SILVA), No longer operational, ROSKOSMOS
SIM (Spectral Irradiance Monitor), No longer operational, NASA
SIM (Solar Irradiation Monitor), No longer operational, NRSCC (NSMC-CMA, CNSA, CAST)
SIM-2 (Solar Irradiation Monitor-2), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
SIMBA Instrument (SIMBA Instrument), Operational, RMI
SIRAL (SAR Interferometer Radar Altimeter), Operational, ESA
SLIM-6 (Surrey Linear Imager - 6 channel), No longer operational, UKSA
SLIM-6-22 (Surrey Linear Imager - 6 channel - 22m resolution), Operational, UKSA
SLR-3 (Side looking Radar), No longer operational, ROSKOSMOS (NPO PLANETA)
SLSTR (Sea and Land Surface Temperature Radiometer), Operational, ESA (COM)
SmallCat (SmallCat Test Mission), Operational, NSO (NOSA)
SMEI (Solar Mass Ejection Imager), No longer operational, NASA
SMILES (Superconducting Submillimeter-Wave Limb-Emission Sounder), No longer operational, JAXA (NICT)
SMMR (Scanning Multi-channel Microwave Radiometer), No longer operational, NASA
SMR (Submillimetre Radiometer), Operational, SNSA
SO (Satellite ozonometer), Approved, ROSKOSMOS
SODISM (SOlar Diameter Imager and Surface Mapper), No longer operational, CNES
SOLSTICE (SOLar STellar Irradiance Comparison Experiment), No longer operational, NASA
Sounder (Sounder), Operational, NOAA
Sounder (INSAT) (IR Sounder), Operational, ISRO
SOVAP (SOlar Variability Picard radiometer), No longer operational, CNES
spaceCam c4000 (LAPAN-A2) (spaceCam c4000 (LAPAN-A2)), Operational, LAPAN
SpaceStar (Fugro Space Star Test Mission), Operational, NOSA
SPAISE2 (AIS) (Automated Identification System (SPAISE2)), Operational, JAXA
SPAISE3 (AIS) (Automated Identification System (SPAISE3)), Approved, JAXA
Spectrometer (OCO) (Spectrometer (OCO)), No longer operational, NASA
Spectrometer (OCO-2) (Spectrometer (OCO-2)), Operational, NASA
Spectrometer (OCO-3) (Spectrometer (OCO-3)), Operational, NASA
Spectrometer (TEMPO) (Spectrometer (TEMPO)), Operational, NASA
SPER (Plasma and energetic radiation spectrometer), Approved, ROSKOSMOS
SPEXone (Spectro-Polarimeter for Exploration), Operational, NSO, SRON (NASA)
SPM (Solar Proton Monitor), No longer operational, NOAA
SR (Scanning Radiometer), No longer operational, NOAA
SRAL (SAR Radar Altimeter), Operational, ESA (COM)
SROSMO (Spectroradiometer for ocean monitoring), No longer operational, ROSKOSMOS
SSB/X-2 (Special Sensor Gamma Ray Particle Detector), No longer operational, NOAA (DoD (USA))
SSI/ES-2 (Special Sensor Ionospheric Plasma Drift/Scintillation Meter), No longer operational, NOAA (DoD (USA))
SSI/ES-3 (Special Sensor Ionospheric Plasma Drift/Scintillation Meter), Operational, NOAA (DoD (USA))
SSIM (Solar Spectral Irradiance Monitor), Operational, NSMC-CMA
SSJ/4 (Special Sensor Precipitating Plasma Monitor), No longer operational, NOAA (DoD (USA))
SSJ/5 (Special Sensor Precipitating Plasma Monitor), Operational, NOAA (DoD (USA))
SSM (Special Sensor Magnetometer), Operational, NOAA (DoD (USA))
SSM/I (Special Sensor Microwave Imager), No longer operational, NOAA (DoD (USA))
SSM/IS (Special Sensor Microwave Imager Sounder), Operational, NOAA (DoD (USA))
SSM/T-1 (Special Sensor Microwave Temperature Sounder), No longer operational, NOAA (DoD (USA))
SSM/T-2 (Special Sensor Microwave Water Vapor Sounder), No longer operational, NOAA (DoD (USA))
SSTI (Satellite-to-Satellite Tracking Instrument), No longer operational, ESA
SSTL-300 S1 Imager (MS) see: MSI (BJ-2) (Multispectral Imager), Operational, UKSA (NRSCC, 21AT)
SSTL-300 S1 Imager (PAN) see: PAN (BJ-2) (Panchromatic Imager), Operational, UKSA (NRSCC, 21AT)
SSTM-1 (Oceansat-3) (Sea Surface Temperature Monitor-1), Operational, ISRO
SSU (Stratospheric Sounding Unit), No longer operational, NOAA
SSULI (Special Sensor Ultraviolet Limb Imager), Operational, NOAA
SSUSI (Special Sensor Ultraviolet Spectrographic Imager), Operational, NOAA
SSZ (SSZ), No longer operational, NOAA (DoD (USA))
STIS (Supra Thermal Ion Sensor), Proposed, NOAA (NASA)
STR (Star Tracker Set (3)), Operational, ESA
SumbandilaSat Imager see: MSI (SumbandilaSat) (Multi-Spectral Imager (SumbandilaSat)), No longer operational, SANSA (Uni of Stellenbosh)
SUSIM (UARS) (Solar Ultraviolet Irradiance Monitor), No longer operational, NASA
SUVI (Solar Ultraviolet Imager), Operational, NOAA
SWIM (Surface Waves Investigation and Monitoring), Operational, CNES
SWiPS (Solar Wind Plasma Sensor), Proposed, NOAA (NASA)
SWIR Fizeau interferometer (GESat GEN1 SWIR Fizeau interferometer), Operational, Absolut Sensing
SWIRSAT Imager (Chameleon Multispectral SWIR), Being developed, LatConnect 60
SWS/SEM/HEPD (Space Weather Suite / Space Environment Monitor/ High Energy Particle Detector), Operational, NSMC-CMA
SWS/SEM/IMS  (Space Weather Suite / Space Environment Monitor / Ionosphere Measurement Sensor), Operational, NSMC-CMA
SWS/Tri-IPM  (Space Weather Suite / Triple-angle Ionospheric PhotoMeter), Operational, NSMC-CMA
SXI (Solar X-ray Imager), Operational, NOAA (USAF)

TANSO-3 (Total Anthropogenic and Natural emissions mapping SpectrOmeter-3), Being developed, MOE (Japan) (NIES (Japan), JAXA)
TANSO-CAI (Thermal And Near infrared Sensor for carbon Observation - Cloud and Aerosol Imager), Operational, JAXA (MOE (Japan), NIES (Japan))
TANSO-CAI-2 (Thermal And Near infrared Sensor for carbon Observation - Cloud and Aerosol Imager-2), Operational, JAXA (MOE (Japan), NIES (Japan))
TANSO-FTS (Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer), Operational, JAXA (MOE (Japan), NIES (Japan))
TANSO-FTS-2 (Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer-2), Operational, JAXA (MOE (Japan), NIES (Japan))
TDP (Technological Development Package), No longer operational, CONAE
TeLEOS 1 Camera (TeLEOS 1 Camera), Operational, ST Electronics
TeLEOS 2 SAR (TeLEOS 2 SAR), Operational, ST Electronics
TEMPEST (Temporal Experiment for Storms and Tropical Systems), Operational, USSF (NASA)
TES (Tropospheric Emission Spectrometer), No longer operational, NASA
TES PAN (Panchromatic Camera), No longer operational, ISRO
TGF Detectors (TGF Detectors), No longer operational, NYUAD (UAE SA, Khalifa University)
TGRS (TriG (Tri-GNSS) GNSS Radio-occultation System), Operational, NOAA, TASA (UCAR)
TGSP (Trace Gas Spectrometer), Proposed, ROSHYDROMET
Thermal Imager see: FEI (FORUM Embedded Imager), Being developed, ESA
THIR (Temperature-Humidity Infrared Radiometer), No longer operational, NASA
TICFIRE (Thin Ice Clouds in Far Infrared (IR) Experiment), Being developed, CSA (NASA, ECCC, USask, UQAM)
TIM (Total Irradiance Monitor), No longer operational, NASA
TIP (Tiny Ionospheric Photometer), No longer operational, NOAA (UCAR, U.S. Naval Research Laboratory)
TIR (Thermal Infra Red), Approved, CNES
TIRS (Thermal Infrared Sensor), Operational, USGS (NASA)
TIRS (PREFIRE) (Thermal Infrared Spectrometer), Operational, NASA
TIRS-2 (Thermal Infrared Sensor 2), Operational, USGS (NASA)
TM (Thematic Mapper), No longer operational, USGS (NASA)
TMI (TRMM Microwave Imager), No longer operational, NASA
TMR (TOPEX Microwave Radiometer), No longer operational, NASA
TOMS (Total Ozone Mapping Spectrometer), No longer operational, NASA (JAXA)
TOP (MS) (THEOS Optical Payload (MS)), Operational, GISTDA
TOP (PAN) (THEOS Optical Payload (PAN)), Operational, GISTDA
TOPEX (TOPEX NASA Radar Altimeter), No longer operational, NASA
TOPSAT Telescope (TOPSAT Telescope), No longer operational, UKSA
TOR (Tracking, Occultation and Ranging), Operational, DLR
TOU/SBUS (Total Ozone Unit & Solar Backscatter Ultraviolet Sounder), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
TOVS (HIRS/2 + MSU + SSU) (TIROS Operational Vertical Sounder), No longer operational, NOAA
TRASSER (TRASSER), No longer operational, ROSHYDROMET (ROSKOSMOS)
Travers SAR (Travers SAR), No longer operational, ROSKOSMOS
TROPICS (Microwave Spectrometer (TROPICS)), Operational, NASA (NOAA)
TROPOMI (TROPOMI [aka UVNS (S5-P)]), Operational, ESA (DLR, COM, NSO, BELSPO)
TRSR (Turbo-Rogue Space Receiver), No longer operational, NASA
TrueColour (MULA) (TrueColour (MULA)), Being developed, PhilSA (SSTL)
TSIS-1/SIM (Total Solar and Spectral Irradiance Sensor 1 - Spectral Irradiance Monitor), Operational, NASA (NOAA)
TSIS-1/TIM (Total Solar and Spectral Irradiance Sensor 1 - Total Irradiance Monitor), Operational, NASA (NOAA)
TSIS-2/SIM (Total Solar and Spectral Irradiance Sensor 2 - Spectral Irradiance Monitor), Being developed, NASA
TSIS-2/TIM (Total Solar and Spectral Irradiance Sensor 2 - Total Irradiance Monitor), Being developed, NASA
TV camera (TV camera), No longer operational, ROSKOSMOS

UVN (Sentinel-4) (UV-visible- near infrared imaging spectrometer (Sentinel-4)), Being developed, ESA (EUMETSAT, COM)
UVNS (S5-P) see: TROPOMI (TROPOMI), Operational, ESA (DLR, COM, NSO, BELSPO)
UVNS (Sentinel-5) (Ultra-violet Visible Near-infrared Shortwave-infrared spectrometer), Being developed, ESA (EUMETSAT, COM)
UVSQ-Sat NG Spectrometer (UVSQ-Sat NG Spectrometer), Being developed, UVSQ-LATMOS

Variant (variant), No longer operational, ROSKOSMOS
VAS (VISSR Atmospheric Sounder), No longer operational, NOAA
VCS-MA (Vidicon Camera System - Medium Angle), No longer operational, NASA
VCS-NA (Vidicon Camera System - Narrow Angle), No longer operational, NASA
VCS-WA (Vidicon Camera System - Wide Angle), No longer operational, NASA
VDES (VHF Data Exchange System Test Mission), Operational, NOSA
VEGETATION (VEGETATION), No longer operational, CNES (SNSA, COM)
Vegetation (Vegetation), No longer operational, ESA
VFM (Vector Field Magnetometer), Operational, ESA
VGA Matrix Camera (VGA Matrix Camera), No longer operational, SANSA
VHRR (Very High Resolution Radiometer), No longer operational, ISRO
VHRR (Very High Resolution Radiometer), No longer operational, NOAA
VIIRS (Visible/Infrared Imager Radiometer Suite), Operational, NOAA (NASA)
VIREO on SBG-TIR (Visible and Near-Infrared Camera on SBG-TIR), Being developed, ASI (NASA)
VIRR (Multispectral Visible and Infra-red Scan Radiometer (10 channels)), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
VIRR (SeaSat) (Visible and Infra Red Radiometer), No longer operational, NASA
VIRS (Visible Infra-red Scanner), No longer operational, NASA
VIS-NIR (Multi-spectral Optical Camera - Visible & Near Infrared), Approved, CONAE, AEB
VISSR (Visible-Infrared Spin Scan Radiometer), No longer operational, NOAA
VISSR (GMS-4) (Visible and Infra-red Spin Scan Radiometer (GMS-4)), No longer operational, JAXA
VISSR (GMS-5) (Visible and Infra-red Spin Scan Radiometer (GMS-5)), No longer operational, JAXA (JMA)
VISSR-1 (Stretched Visible and Infrared Spin Scan Radiometer), No longer operational, NRSCC (CAST)
VISSR-2 (Stretched Visible and Infrared Spin Scan Radiometer-2), Operational, NRSCC (NSMC-CMA, CNSA, CAST)
VNIR (GF-4) (Visible and Near-Infrared Camera), Operational, CRESDA
VNREDSat-1 MS (VNREDSat-1 Multispectral), Operational, VAST (ASTRIUM)
VSC (Venus Superspectral Camera), Operational, CNES (ISA)
VTIR (Visible and Thermal Infrared Radiometer), No longer operational, JAXA
VTPR (Vertical Temperature Profile Radiometer), No longer operational, NOAA

WAI (Wide-field Auroral Imager), Operational, NSMC-CMA
WAOSS-B (Wide-Angle Optoelectronic Stereo Scanner), No longer operational, DLR
WEFAX (Weather Facsimile), No longer operational, NOAA
WFC (Wide Field Camera), No longer operational, NASA
WFI (Wide Field Imager), No longer operational, CAST (INPE)
WFI (Amazonia-1) (Wide Field Imager (Amazonia-1)), Operational, INPE
WFI (CBERS-4) (Wide Field Imager (CBERS)), Operational, INPE (CAST)
WFI (CBERS-4A) (Wide Field Imager), Operational, INPE (CAST)
WFV (Wide Field View), Operational, CRESDA
WiFS (Wide Field Sensor), No longer operational, ISRO
WINDII (WINDII), No longer operational, CNES (NASA)
WindRAD (Wind Radar), Operational, NSMC-CMA (CNSA)
WindSat (WindSat), No longer operational, NASA
WPM (Wide Swath Panchromatic and Multispectral Camera), Operational, CAST (INPE)
WSAR (WSAR), Operational, NSOAS (CAST)
WSMSC (Wide-Swath Multi-Spectral Surveying Instrument), No longer operational, ROSKOSMOS (ROSHYDROMET)
WTE (Whale Tracker Experiment), No longer operational, CONAE
WV110 (WorldView-110 Camera), Operational, Maxar
WVC-2 (Wide View CCD camera - 2), Operational, CAST
WVR (Water Vapor Radiometer), No longer operational, NASA

X-Band SAR (X-Band Synthetic Aperture Radar), Operational, DLR
X-Band SAR (TerraSAR-FOX), Proposed, DLR
XFM (X-ray Flux Monitor), Proposed, NOAA
XGRE (X-ray, Gamma-ray and Relativistic Electrons), No longer operational, CNES
XPS (XUV Photometer System), No longer operational, NASA
X-ray astronomy payload (X-ray astronomy payload), No longer operational, NOAA (TIFR)
X-ray Irradiance Sensor (X-ray Irradiance Sensor), Proposed, NOAA

None.

None.
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