CHRIS
PROBA-1's main instrument was the Compact High Resolution Imaging Spectrometer (CHRIS), which had applications in atmosphere, land, agriculture and oceans and coast.
It acquired 13 square km scenes at 17 m spatial resolution in 18 user-selected visible and near-infrared wavelengths.
CHRIS was funded by the UK Space Agency (at the time the British National Space Centre (BNSC)) and Sira Electro-Optics Ltd, and developed/built by Sira Technology Ltd (formerly Sira Electro-Optics Ltd).
| Resolution | 18m at nadir |
|---|---|
| Swath Width | 14 km |
| Spectral Range | 400 - 1050 nm in VNIR |
| Spectral Resolution | 1.25 nm 11 nm |
| Image Size | Each nominal image is 13 km x 13 km |
Available MODES:
- MODE 1: Full swath width, 62 spectral bands, 773 nm / 1036 nm, nadir ground sampling distance 34 m at 556 km
- MODE 2 WATER BANDS: Full swath width, 18 spectral bands, nadir ground sampling distance 17 m at 556 km
- MODE 3 LAND CHANNELS: Full swath width, 18 spectral bands, nadir ground sampling distance 17 m at 556 km
- MODE 4 CHLOROPHYL BAND SET: Full swath width, 18 spectral bands, nadir ground sampling distance 17 m at 556 km
- MODE 5 LAND CHANNELS: Half swath width, 37 spectral bands, nadir ground sampling distance 17 m at 556 km