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Soil Moisture Active Passive Experiment

Compact High Resolution Imaging Spectrometer (CHRIS)

CHRIS provides remotely-sensed multi-angle data at high spatial resolution and in superspectral/hyperspectral wavelengths. The instrument has a spectral range of 415-1050 nm, and provides observations at 19 spectral bands simultaneously, with a spatial resolution of 20 m at nadir and a swath width of 14 km. CHRIS is on board ESA's PRoject for On-Board Autonomy (PROBA). The PROBA satellite is on a sun-synchronous elliptical polar orbit since 2001 at a mean altitude of about 600 km. CHRIS data can be downloaded from ESA.




Compact High Resolution Imaging Spectrometer



Launch date

22nd, Oct. 2001

Design life

>2 years


Sun synchronous orbit, RAAN 10:30.

Spacecraft operations control centre

ESA's Ground Segment Department

Accuracy (arcsec)

1.413 (L-band; 21cm)

Waveband (nm)


Incidence angle(°)

±55, ±36, 0

Swath (km)


Spatial resolution (m)

20 at nadir

Temporal resolution

Approximately 7 days






Created: February 2016
Last Modified: June 2016
Maintainer: Xiaoling Wu, xiaoling.wu@monash.edu