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PROBA 2, ESA's Project for On-Board Autonomy technology demonstrator satellite, was launched on a Rokot rocket with a Breeze KM upper stage from Plesetsk on 02 November 2009 at 01:50 UT. The 130 kg satellite carries two Belgian solar physics instruments (SWAP, LYRA) and two Czech plasma physics instruments (TPMU, DSLP) and will demonstrate 17 advanced satellite technologies including star trackers, sun sensors, a camera, magnetometer, and others. SWAP, an Extreme UV telescope, will be used to observe the solar corona. LYRA, is a solar radiometer observing in four ultraviolet bands. TPMU, the Thermal Plasma Measurement Unit, measures the ambient ion and electron temperature, the ion density, composition, and the floating potential of the satellite body. DSLP, the Dual Segmented Langmuir Probe, will study the plasma environment and how it varies with solar events.

Alternate Names

  • 36037
  • PROBA2
  • Project for On-Board Autonomy 2 (PROBA 2)

Facts in Brief

Launch Date: 2009-11-02
Launch Vehicle: Rokot
Launch Site: Plesetsk, Russia

Funding Agency

  • European Space Agency (International)


  • Space Physics
  • Solar Physics
  • Astronomy

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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