The Project for On-Board Autonomy (Proba) was originally a technology demonstration mission of the European Space Agency, started in mid-1998 and funded within the frame of ESA's General Support Technology Programme.

Intended as a one-year mission, Proba has provided data successfully ever since its launch on 22nd Oct 2001. Hosting two Earth Observation instruments CHRIS and HRC, Proba is since 2004 managed by ESA's Ground Segment Department within the Directorate of Earth Observation at ESA/ESRIN. 

• More on Proba data & images
• Product Details - detailed descriptions of data
• Reference Documents

Operators: ESA (European Space Agency)
Date of Launch:
22 October 2001
Status: operating nominally
Orbit Height: 615 km
Orbit Type: Sun-synchronous elliptical polar
Repeat Cycle: approx. 7 days
Resolution: 18 m (CHRIS)
Swath Width: 14 km (CHRIS)

Onboard Sensors provided under TPM:

• CHRIS (Compact High Resolution Imaging Spectrometer)
• HRC (High Resolution Camera)