Jump to content

PROBA

From Wikipedia, the free encyclopedia
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
PROBA-1
NamesPROBA, PROBA-1
Mission typeExperimental, Earth Observation
OperatorESA
COSPAR ID2001-049B Edit this at Wikidata
SATCAT no.26958
WebsiteProba-1 applications
Mission durationElapsed: 22 years, 10 months, 12 days
Spacecraft properties
BusPROBA
ManufacturerQinetiQ Space (previously Verhaert Space)
Launch mass94 kg (207 lb)
Dry mass94 kg (207 lb)
Dimensions0.6 m × 0.6 m × 0.8 m (2 ft 0 in × 2 ft 0 in × 2 ft 7 in)
Power90 W
Start of mission
Launch date04:53, 22 October 2001 (UTC) (2001-10-22T04:53Z)
RocketPSLV C3
Launch siteSriharikota FLP
ContractorISRO
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous
Eccentricity0.008866
Perigee altitude553 km (344 mi)
Apogee altitude677 km (421 mi)
Inclination97.9 degrees
Period97 minutes
Epoch22 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]

Series of satellites

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.

See also

References

  1. ^ Ramakrishnan, S.; Somanath, S.; Balakrishnan, S. S. (January 2002). "Multi-Orbit Mission by PSLV-C3 and Future Launch Opportunities". IAF Abstracts: 936. Bibcode:2002iaf..confE.936R.
  2. ^ "PSLV-C3". ISRO. 22 October 2001. Archived from the original on 25 March 2014. Retrieved 25 October 2021.
  3. ^ "PROBA-1 - Overview". ESA. 11 December 2012. Retrieved 25 October 2021.
  4. ^ "PROBA-1 (Project for On-Board Autonomy - 1)". www.eoportal.org. Retrieved 2022-12-28.
  5. ^ a b "Proba-1 Celebrates 20th Birthday In Orbit". ESA. 22 October 2021. Retrieved 25 October 2021.
  6. ^ "Proba-1 sets new record". ESA. 8 March 2018. Retrieved 11 March 2018.
  7. ^ Werner, Debra (24 April 2024). "Major changes approved for ClearSpace-1 mission". SpaceNews. Retrieved 24 April 2024.