Names | PROBA, PROBA-1 |
---|---|
Mission type | Experimental, Earth Observation |
Operator | ESA |
COSPAR ID | 2001-049B |
SATCAT no. | 26958 |
Website | Proba-1 applications |
Mission duration | Elapsed: 22 years, 6 months, 2 days |
Spacecraft properties | |
Bus | PROBA |
Manufacturer | QinetiQ Space (previously Verhaert Space) |
Launch mass | 94 kg (207 lb) |
Dry mass | 94 kg (207 lb) |
Dimensions | 0.6 m × 0.6 m × 0.8 m (2 ft 0 in × 2 ft 0 in × 2 ft 7 in) |
Power | 90 W |
Start of mission | |
Launch date | 04:53,22 October 2001(UTC) |
Rocket | PSLV C3 |
Launch site | Sriharikota FLP |
Contractor | ISRO |
Orbital parameters | |
Reference system | Geocentric |
Regime | Sun-synchronous |
Eccentricity | 0.008866 |
Perigee altitude | 553 km (344 mi) |
Apogee altitude | 677 km (421 mi) |
Inclination | 97.9 degrees |
Period | 97 minutes |
Epoch | 22 October 2001 00:53:00 UTC |
PROBA (Project for On-Board Autonomy), renamed PROBA-1, is a Belgian satellite technology demonstration mission launched atop an Indian Polar Satellite Launch Vehicle by ISRO on 22 October 2001. [1] [2] The satellite was funded through the ESA's MicroSat and General Study Program with the objective of addressing issues regarding on-board operational autonomy of a generic satellite platform. [3] [4] This small (60×60×80 cm; 95 kg) boxlike system, with solar panel collectors on its surface, hosts two Earth Observation instruments dubbed CHRIS and HRC. CHRIS is a hyperspectral system (200 narrow bands) that images at 17 m resolution, while HRC is a monochromatic camera that images visible light at 5 m resolution. [5]
With an initial lifetime of one to two years, the satellite celebrated its 20th year of operations in 2021. [5] On 9 March 2018, it surpassed ERS-2 as ESA's longest operated Earth observation mission of all time. [6] ESA aims to deorbit the satellite through the ClearSpace-1 mission in 2026. [7]
PROBA is also the name of the series of satellites starting with PROBA-1. The name is also used to refer to the bus of the satellites.
The second satellite in the PROBA series, PROBA-2, was launched on 2 November 2009 together with the SMOS satellite.
The third satellite to be launched was PROBA-V (PROBA-Vegetation), on 7 May 2013.
Further planned satellites in the PROBA series include the formation flying demonstration mission PROBA-3 and limb sounder ALTIUS.
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