BackForward Satellite: Diadéme-1 

Satellite details
Acronym Diadéme-1
Full name Diadéme-1
WIGOS Station Identifier ---
Satellite Description
  • 1st flight unit of the Diadéme programme.
  • Main mission: Solid Earth (space geodesy).
  • Mission performed by an array of laser retro-reflectors distributed over an area of 50 cm diameter.
  • Elliptical orbit, perigee 529 km, apogee 922 km
Mass at launch 23 kg Dry mass 23 kg
Data access link no link provided
Data access information
  • Data freely available from the International Laser Ranging Service (ILRS).
Orbit Drifting orbit Altitude 698 km
Inclination 39.9 °


Space agency CNES
Status Operational
Details on Status
(as available)
Launch 08 Feb 1967 EOL ≥2050
Last update: 2015-07-28
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 Diadéme-1

Acronym Full name
RRA Retro-Reflector Array
Show instrument status and calibration