BackForward Satellite: VAP (2 sat) 

Satellite details
Acronym VAP (2 sat)
Full name Van Allen Probes (2 sats)
WIGOS Station Identifier ---
Satellite Description
  • Couple of co-flying units implementing the VAP programme.
  • Main mission: Space weather, specifically in the radiation belt regions.
  • Elliptical orbits with perigee 620 km, apogee 30,500 km.
Mass at launch 665 kg Dry mass 609 kg
Power 277 W
Data access link no link provided
Data access information
  • Data available from JHU/APL.
Orbit Cross-magnetosphere orbit Altitude
Inclination 18 °


Space agency NASA
Status Inactive
Details on Status
(as available)
Launch 30 Aug 2012 EOL 18 Oct 2019
Last update: 2019-10-25
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on VAP (2 sat)

Acronym Full name
EMFISIS Electric and Magnetic Field Instrument Suite and Integrated Science
EFW Electric Field and Waves Suite
RBSPICE Radiation Belt Storm Probes Ion Composition Experiment
RPS Relativistic Proton Spectrometer
ECT/MagEIS ECT Magnetic Electron and Ion Spectrometer
ECT/HOPE ECT Helium Oxygen Proton Electron
ECT/REPT ECT Relativistic Electron Proton Telescope
Show instrument status and calibration