Russia says moon shot failed due to control unit malfunction
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[October 03, 2023]
MOSCOW (Reuters) - Russia on Tuesday blamed a malfunction in an
on-board control unit for causing its first lunar mission in 47 years to
crash into the moon in August.
The state space corporation, Roscosmos, said the control unit failed to
turn off the propulsion system, which blasted for one and a half times
longer than necessary as the craft hurtled towards the moon. |
![](../images/100323PIX/news_h12.jpg)
A Soyuz-2.1b rocket booster with a Fregat upper stage and the lunar
landing spacecraft Luna-25 blasts off from a launchpad at the Vostochny
Cosmodrome in the far eastern Amur region, Russia, August 11, 2023.
Roscosmos/Vostochny Space Centre/Handout via REUTERS/ File Photo |
Luna-25 spun out of control on Aug. 19 and crashed into the
moon, dashing Moscow's hopes that it would beat India to the
unexplored south pole of the moon. An Indian spacecraft landed
there on Aug. 23.
The failure underscored the decline of Russia's space power
since the glory days of Cold War competition when Moscow was the
first to launch a satellite to orbit the Earth - Sputnik 1, in
1957 - and Soviet cosmonaut Yuri Gagarin became the first man to
travel into space in 1961.
Roscosmos said it had come up with a preliminary analysis of the
reason Luna-25 crashed.
"When issuing a corrective pulse to transfer the spacecraft from
a circular lunar orbit to an elliptical pre-landing orbit, the
Luna-25 propulsion system worked for 127 seconds instead of the
planned 84 seconds," Roscosmos said.
It said the most likely cause was that an on-board control
system malfunctioned in the BIUS-L angular velocity measuring
unit because of incorrect data commands. As a result, the
propulsion system was not shut down when needed.
The Kremlin has played down the failure of the mission, saying
Russia will continue to pursue ambitious plans in space.
(Reporting by Guy Faulconbridge; Editing by Mark Trevelyan)
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