MARCES-B & Sirio-2

Launch Time
Thu Sep 09, 1982 02:12 UTC

A malfunction in the third stage HM7-A engine turbopump resulted in a failure. Flight L05.


Ariane 1
Image Credit: Arianespace
Status: Retired
Liftoff Thrust: 2,772 kN
Payload to LEO: 4,850 kg
Payload to GTO: 1,850 kg
Stages: 4
Strap-ons: 0
Rocket Height: 47.4 m

Mission Details


MARECS B is a telecommunications satellite intended to serve as a relay between boats and ground controllers. It is equipped with three repeaters and an antenna. The satellite did not reach orbit because of the failure of the launch.

Payloads: 1
Total Mass: 1,490.0 kg
Geostationary Transfer Orbit

Sirio 2

The cylindrically shaped spacecraft measured 144 cm in diameter and 240 cm in length including the apogee boost motor. The primary structural members are equipment platforms and a central thrust cone carrying conventional housekeeping electronics in addition to payloads. Attitude, orbit, and spin rate control were performed using a hydrazine propulsion system including four thrusters. The spin rate would have been maintained at 90 rpm throughout the two-year nominal lifetime. A mechanically despun antenna relayed S-band telemetry (meteorological and housekeeping), while a traditional omnidirectional turnstile system supported VHF ranging and telecommands, as well as housekeeping telemetry in transfer orbit and as backup geostationary orbit.

Payloads: 1
Total Mass: 220.0 kg
Geostationary Transfer Orbit


ELA-1, Guiana Space Centre, French Guiana, France



95th orbital launch attempt

European Space Agency

5th mission
1st mission of 1982
2nd failed mission

Ariane 1

5th mission
1st mission of 1982
2nd failed mission