Measurements and Applications
The primary objective of the Geosynchronous High-speed Imager (GHI) is to achieve imaging capabilities over a 2000 × 1800 km² area from geostationary orbit, with higher spatial resolution and a temporal resolution of less than 1 minute.
Full Name
Geostationary High-speed Imager-1
Status
Operational
Instrument Agencies
Maturity
Instrument Type
Imaging multi-spectral radiometers (vis/IR) 
Geometry
Push-broom scanning
Instrument Technology
Multi-purpose imaging Vis/IR radiometer
Sampling
Imaging
Data Access
Open Access
Data Format
L-1 data: HDF 5.0
Resolution
75m\375m
[Best Resolution: 75m]
Swath
Using a dual‑mirror independent scanning design, the two mirrors move the main optical axis in east‑west and north‑south directions respectively to scan selected areas of the Earth.
Waveband
0.45-0.75μm，0.445-0.495μm，0.52-0.57μm，0.62-0.67μm，1.371-1.386μm，1.58-1.64μm，10.3-12.5μm
| NIR (~0.75 µm - ~1.3 µm) |
| SWIR (~1.3 µm - ~3.0 µm) |
FY-4B - FY-4B Geostationary Meteorological Satellite (2021 - 2028) |