NASASpaceFlight.com: the Russian upper stage "Perseus" did not turn on the engine
The third launch of the Russian heavy Angara-A5 rocket with a Perseus upper stage and a 2.4-ton payload mock-up did not pass completely normally, the American portal reports NASASpaceFlight.com .
The American edition writes that during the launch of the payload layout into geotransfer orbit, the Perseus engine failed, which could not be turned on a second time.
As astronomer Jonathan McDowell writes on Twitter, three objects associated with the launch of Angara-A5 are fixed in near-Earth orbit. "Everything in orbit is about 175 by 200 kilometers, presumably debris, it is unclear whether they are related to an unsuccessful restart of the engine," said a scientist from Harvard University in the United States.
As Dmitry Rogozin, CEO of Roscosmos, noted on Twitter, the launch of the Angara-A5 rocket from Plesetsk was successful.
According to Roscosmos, during the third launch of Angara-A5, it was planned to put a mock-up of the payload into geostationary orbit.
Earlier, Angara-A5 was launched twice — in December 2014 and 2020.
The developer of Angara-A5 is the Khrunichev Center, the Perseus upper stage is the Rocket and Space Corporation (RSC) Energia.