Mission typeTechnology
Space weather
OperatorEuropean Space Agency[1]
COSPAR ID2009-059B
SATCAT no.36037
Mission duration2 years (planned)
Spacecraft properties
ManufacturerVerhaert Design & Development (now QinetiQ Space)
Launch mass120 kilograms (260 lb)
Dimensions0.60m x 0.70m x 0.85m
Power120 watts
Start of mission
Launch date2 November 2009, 01:50:00 (2009-11-02UTC01:50Z) UTC
Launch sitePlesetsk 133/3
Orbital parameters
Reference systemGeocentric
Perigee altitude713 kilometres (443 mi)[2]
Apogee altitude733 kilometres (455 mi)[2]
Inclination98.28 degrees[2]
Period99.12 minutes[2]
Epoch24 January 2015, 13:01:08 UTC[2]
PROBA-2 mission logo
ESA solar system insignia for the PROBA-2 mission  

PROBA-2 is the second satellite in the European Space Agency's series of PROBA low-cost satellites that are being used to validate new spacecraft technologies while also carrying scientific instruments.[3] PROBA-2 is a small satellite (130 kg) developed under an ESA General Support Technology Program (GSTP) contract by a Belgian consortium led by Verhaert (now QinetiQ Space) of Kruibeke, Belgium. The nominal mission duration was two years.[1] As of 2019, the mission continues.[4]

Mission summary

It was launched on 2 November 2009, with the Rockot launch system together with ESA's SMOS mission.[5] The platform was launched in a sun-synchronous low Earth orbit (altitude of 725 km).[1]

PROBA-2 contains five scientific instruments. Two of them are designated to observe the Sun: "The Sun Watcher using APS and Image Processing" (SWAP, an EUV imager) and the "Large Yield Radiometer" (LYRA), a radiometer made of diamond photodiodes. The Principal investigator teams of both instruments are hosted at the Royal Observatory of Belgium. This institute will also host the PROBA-2 Science Center from which the SWAP and LYRA instruments will be operated and their data distributed. There are three other instruments to measure basic space plasma properties: the Dual segmented Langmuir probe (DSLP)[1] (developed by the Astronomical Institute and Institute of Atmospheric Physics, Academy of Sciences of the Czech Republic), the Thermal Plasma Measurement Unit (TPMU), and the Science Grade Vector Magnetometer (SGVM) developed by the Technical University of Denmark.[1]


  1. ^ a b c d e "PROBA-2 (Project for On-Board Autonomy-2)". ESA. Retrieved 2013-04-15.
  2. ^ a b c d e "PROBA-2 Satellite details 2009-059B NORAD 36037". N2YO. 24 January 2015. Retrieved 25 January 2015.
  3. ^ "About PROBA-2". ESA. 2012-12-02. Retrieved 2013-04-15.
  4. ^
  5. ^ "Successful launch qualification test for PROBA-2". ESA. 2008-09-16. Archived from the original on 2011-07-25. Retrieved 2013-04-15.

See also

External links

  • PROBA-2 Science Center