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Launch Failure
Liftoff Time (GMT)
02:12:00
Thursday September 9, 1982
A malfunction in the third stage HM7-A engine turbopump resulted in a failure. Flight L05.
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.
Geostationary Transfer Orbit
1 Payload
1,490 kilograms
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.
Geostationary Transfer Orbit
1 Payload
220 kilograms
5th
Mission
1st
Mission of 1982
5th
Mission
1st
Mission of 1982
95th
Orbital launch attempt