Soviet Era Space Junk Forced ISS Orbit Lifting, NASA Says

© AFP 2022 / NASA This NASA photo obtained March 10, 2020 shows the SpaceX Dragon resupply ship attached to the International Space Station's (ISS) Harmony module as both spacecraft were soaring 265 miles above the Atlantic coast of Brazil on March 9, 2020.
This NASA photo obtained March 10, 2020 shows the SpaceX Dragon resupply ship attached to the International Space Station's (ISS) Harmony module as both spacecraft were soaring 265 miles above the Atlantic coast of Brazil on March 9, 2020. - Sputnik International
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Throughout its use the ISS has undergone 25 manoeuvres (with the exception of the most recent) in order to prevent potentially damaging collisions with space junk floating in orbit.

The International Space Station (ISS) has lifted its orbit by 900 metres in order to evade a piece of a booster stage from a Proton-K (western designation SL-12) rocket that was used to send a Soviet-era craft into space in September 1987, NASA said. The manoeuvre was performed using the thrusters of the Russian spacecraft Progress MS-14, which had docked at the ISS on 25 April of this year.

© Photo : Facebook / RoscosmosThe launch of the Proton-M carrier rocket with a DM-03 booster and Russian Elektro-L No 3 weather satellite
Soviet Era Space Junk Forced ISS Orbit Lifting, NASA Says - Sputnik International
The launch of the Proton-M carrier rocket with a DM-03 booster and Russian Elektro-L No 3 weather satellite

Proton-K rockets were used in two successful spacecraft launches, on 3 and 16 September 1987, but it's unclear which rocket debris the ISS evaded on 3 July. One of the launches sent GLONASS (Soviet analogue of GPS) satellites into orbit, while the other spacecraft carried a Soviet TV satellite.

The 3 June manoeuvre was the 26th junk-evading mission in ISS's history. ISS needs to change its position from time to time to keep debris from prior launches damaging the station's hull. A previous manoeuvre took place in September 2015.

In this handout photo released by Roscosmos Space Agency Press Service U.S. astronaut Chris Cassidy, left, Russian cosmonauts Anatoly Ivanishin, centre, and Ivan Vagner, members of the main crew of the expedition to the International Space Station (ISS), walk prior the launch of Soyuz MS-16 space ship at the Russian leased Baikonur cosmodrome, Kazakhstan, Thursday, April 9, 2020.  - Sputnik International
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This measure is taken quite often due to the ISS rotating inside so-called lower Earth orbit, which is more littered with space junk than higher levels. If the debris threat is detected too late for a safe evasive manoeuvre, ISS personnel are evacuated to a spacecraft that delivered them to the station in order to be ready to depart if the ISS is severely damaged. Such evacuations took place on at least four occasions between 2009 and 2015.

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