BackForward Satellite: ARTEMIS-P1 

Satellite details
Acronym ARTEMIS-P1
Full name Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun - P1
Satellite Description
  • 1st unit of the 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 Operational
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 ≥2022
Last update: 2022-01-03
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-P1

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