https://sputnikglobe.com/20230820/russias-luna-25-module-experienced-issues-before-pre-landing-maneuver---expert-1112744115.html
Russia's Luna-25 Module Experienced Issues Before Pre-Landing Maneuver - Expert
Russia's Luna-25 Module Experienced Issues Before Pre-Landing Maneuver - Expert
Sputnik International
Some "worrying issues" with Russia's Luna-25 module were detected before it attempted to enter the pre-landing orbit around the Moon, but the decision to postpone the maneuver was not taken
2023-08-20T17:11+0000
2023-08-20T17:11+0000
2023-08-20T17:11+0000
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On Saturday, Russia's state space corporation Roscosmos said that an emergency situation occurred on board the Luna-25 module that prevented its transition to the pre-landing orbit with the specified parameters. On Sunday, Roscosmos said that Luna-25 seemingly crashed into the Moon's surface after going into an unplanned orbit. Communication with the spacecraft was lost at around 2:57 p.m. Moscow time (11:57 GMT) on Saturday.The scientist added that, given these issues, it was necessary to wait and push back the transition to the pre-landing orbit, adding that there would be "nothing terrible" about this.On August 11, the Soyuz-2.1b carrier rocket lifted off from Russia's Vostochny Cosmodrome and launched into orbit Luna-25, the first Russian lunar mission in almost 50 years and the first one in Russia's independent space history.
https://sputnikglobe.com/20230820/luna-25-station-collided-with-moon---russian-space-agency-1112736044.html
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russian moon program, russian lunar program, luna-25 module, russian lunar module, russian lunar station, luna-25 crashed
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Russia's Luna-25 Module Experienced Issues Before Pre-Landing Maneuver - Expert
MOSCOW (Sputnik) - Some "worrying issues" with Russia's Luna-25 module were detected before it attempted to enter the pre-landing orbit around the Moon, but the decision to postpone the maneuver was not taken, Nathan Eismont, a leading researcher at the Space Research Institute of the Russian Academy of Sciences, told Sputnik.
On Saturday, Russia's state space corporation Roscosmos said that an emergency situation occurred on board the Luna-25 module that prevented its transition to the pre-landing orbit with the specified parameters. On Sunday, Roscosmos said that Luna-25 seemingly crashed into the Moon's surface after going into an unplanned orbit. Communication with the spacecraft was lost at around 2:57 p.m. Moscow time (11:57 GMT) on Saturday.
"There were issues, they were not that significant, but the signs were, so to speak, worrying, but everyone hoped that they would be able to deal with this somehow ... I will say it carefully, there are calculated things, and there are not nominal [values] ... If a deviation we have turns out to be somewhat higher than we expected, this is a worrying fact, but, apparently, it was not worrying enough to move on to the radical solution," Eismont said.
20 August 2023, 08:58 GMT
The scientist added that, given these issues, it was necessary to wait and push back the transition to the pre-landing orbit, adding that there would be "nothing terrible" about this.
"It is sad that there was time and, apparently, the decision taken on how to proceed was not the best," he said.
On August 11, the Soyuz-2.1b carrier rocket lifted off from Russia's Vostochny Cosmodrome and launched into orbit Luna-25, the first Russian lunar mission in almost 50 years and the first one in Russia's independent space history.
