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 coverage for the SMAPEx study area is summarised below. CHRIS data can be downloaded from ESA.

Source: http://www.lamma.rete.toscana.it, access on 30th, Oct. 2011

Mission	CHRIS
Sensor	Compact High Resolution Imaging Spectrometer
Spacecraft	PROBA
Launch date	22nd, Oct. 2001
Design life	>2 years
Orbit	Sun synchronous orbit, RAAN 10:30.
Spacecraft operations control centre	ESA's Ground Segment Department
Accuracy (arcsec)	1.413 (L-band; 21cm)
Waveband (nm)	415-1050
Incidence angle(°)	±55, ±36, 0
Swath (km)	14
Spatial resolution (m)	20 at nadir
Temporal resolution	Approximately 7 days