BackForward Satellite Programme: TopSat 

Programme details
Programme description
  • Single-satellite programme, for land observation.
  • UK programme: developed and operated by a consortium of British scientific institutes and industries sponsored by BNSC.
  • The platform is actively stabilised over 3 axes.
  • The design life time is 1 year.
  • The satellite exploits a sunsynchronous orbit around 10:30.
  • See detailed descriptions at
Data circulation
  • Onboard stored and real-time data downlinked to the ground segment facilities run by the QinetiQ Company, in centres at West Freugh, Scotland, and at the Bradford University.
  • Data service provided by the InfoTerra company in Farnborough and connected centres worldwide spread.
Agencies UKSA
Programme lifetime 2005 - 2008
Associated satellites and instruments

Note: red tag => no longer operational , green tag => operational , blue tag => planned