BackForward Satellite: TWINS (2 sats) 

Satellite details
Acronym TWINS (2 sats)
Full name Two Wide-angle Imaging Neutral-atom Spectrometers (2 sats)
WIGOS Station Identifier ---
Satellite Description
  • Coupled satellites in the Molniya orbit.
  • Main mission: Magnetosphere investigation.
  • Highly elliptical orbits: perigee 1100 km, apogee 46000 km, the two satellites in complementary planes
Mass at launch Dry mass
Data access link no link provided
Data access information
  • Data available from the TWINS Science Operations Center (SOC).
Orbit Molniya orbit Altitude
Inclination 63.4 °


Space agency NASAUSAF
Status Inactive
Details on Status
(as available)

TWINS A and B have been decommissioned.

Launch 28 Jun 2006 EOL 2020
Last update: 2022-03-21
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 TWINS (2 sats)

Acronym Full name
TWINS Two Wide-angle Imaging Neutral-atom Spectrometers
LAD Lyman Alpha Detector
Show instrument status and calibration