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Satellite:
THEMIS-A
Satellite details
Acronym
THEMIS-A
Full name
Time History of Events and Macroscale Interactions during Substorms - A
Satellite Description
1st unit of the constellation of 3 satellites flown across the Magnetosphere, residual of initial 5.
Main mission: Space weather, magnetosphere processes.
Earth's orbits with perigees in the range 7,100-9,500 and apogees in the range 64,000-202,000 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.
Orbit
Cross-magnetosphere orbit
Altitude
Inclination
6
°
Space agency
NASA
Status
Operational
Details on Status (as
available)
On 20 September 2009, the two most external satellites of the initially 5 THEMIS constellation, were moved towards lunar orbits to implement the ARTEMIS mission.
Launch
17 Feb 2007
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
THEMIS-A
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
Satellite payload
All known instruments flying on
THEMIS-A
* The information in this field is estimated or assumed