BackForward Satellite: ARTEMIS (2 sats) 

Satellite details
Acronym ARTEMIS (2 sats)
Full name Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun
Satellite Description
  • Constellation of 2 satellites observing the Magnetosphere from lunar orbits.
  • Main mission: Space weather, magnetosphere processes.
  • Positioned at the LL1 and LL2 Lunar Lagrange libration points, LL1 between the Earth and the Moon, LL2 opposite to the Earth; elliptical orbits around the Moon with perigee 100 km and apogee 19,000 km.
Mass at launch 126 kg Dry mass 77 kg
Power 41 W
Data access link no link provided
Data access information
  • Data are available from the Space Sciences Laboratory (SSL), Berkeley University.
Orbit Lunar orbit Altitude
Inclination 6 °


Space agency NASA
Status Unclear
Details on Status
(as available)
  • The two satellites were with the THEMIS cluster until 20 July 2009. then were moved to lunar orbits.  The orbital re-configuration took about two years.
Launch 15 Jul 2011 EOL ≥2020
Last update: 2019-12-27
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 ARTEMIS (2 sats)

Acronym Full name
FGM Fluxgate Magnetometer
ESA Electrostatic Analyzer
SST Solid State Telescope
SCM Search Coil Magnetometer
EFI Electric Field Instrument
Show instrument status and calibration