from Wikipedia, the free encyclopedia
Type: Earth observation satellite
Country: EuropeEurope Europe
Operator: European space agencyESA ESA
COSPAR-ID : 2009-059B
Mission dates
Dimensions: 130 kg
Size: 0.6 × 0.6 × 0.8 meters
Begin: November 2, 2009, 01:51 UTC
Starting place: Plesetsk Cosmodrome
Launcher: Rockot
Status: in orbit
Orbit data
Rotation time : 99.2 min
Orbit inclination : 98.3 °
Apogee height 727 km
Perigee height 709 km

Proba-2 is a small satellite of the ESA , which according to the concept of Proba-1 ( English. Project for On-Board Autonomy for project for on-board autonomy ) should operate autonomously and inexpensively. The launch of the box-shaped satellite weighing 130 kg and measuring 0.6 × 0.6 × 0.8 meters into a sun-synchronous orbit at an altitude of 700 km took place on November 2, 2009 together with the SMOS satellite on board a Rockot rocket from the Russian Plesetsk spaceport .

Proba-2 is testing new lithium-ion batteries, improved data acquisition and processing, lightweight structural elements based on aluminum and CFRP , improved position control through new reaction wheels in conjunction with GPS receivers and star sensors that are also to be used in the BepiColombo , and resist jets powered by xenon and nitrogen for orbit control. Laser reflectors enable precise position determination from the earth.

Proba-2 examines the solar radiation and the solar wind generated plasma in the magnetosphere of the Earth.

Web links

Individual evidence

  1. path data by Chris Peat: Proba 2 - Orbit. In: Heavens Above. June 2, 2012, accessed June 4, 2012 .
  2. Chris Bergin: SMOS and Proba-2 successful following launch from Plesetsk., November 1, 2009, accessed on November 2, 2009 (English, the launch took place on November 2, shortly after midnight, in the USA it was November 1 , so the report apparently appeared before the start).