Measurements and Applications
Measures middle atmosphere temperature. Provides tropospheric and stratospheric profiles of O2, O3, O4, CO, N2O, NO2, CO2, CH4, H2O, and tropospheric and stratospheric profiles of aerosols and cloud altitude.
Full Name
Scanning Imaging Absorption Spectrometer for Atmospheric Chartography
Status
No longer operational
Instrument Agencies
Maturity
High Heritage - Operational
Instrument Type
Atmospheric chemistry 
Geometry
Steerable viewing
Instrument Technology
High-resolution nadir-scanning SW spectrometer
Sampling
Imaging
Data Access
Open Access
Data Format
Resolution
Limb vertical 3 x 132 km, Nadir horizontal 32 x 215 km
Swath
Limb and nadir mode: 1000 km (max)
Accuracy
Radiometric: <4%
Waveband
UV - SWIR: 240 - 314 nm, 309 - 405 nm, 394 - 620 nm, 604 - 805 nm, 785 - 1050 nm, 1000 - 1750 nm, 1940 - 2040 nm and 2265 - 2380 nm
| UV (~0.01 µm - ~0.40 µm) |
| VIS (~0.40 µm - ~0.75 µm) |
| NIR (~0.75 µm - ~1.3 µm) |
| SWIR (~1.3 µm - ~3.0 µm) |
Envisat - Environmental Satellite (2002 - 2012) |