February 26, 2024

Debris Avoidance Maneuver: Space Station Thrusters Fire To Avoid Russian Space Junk

The Progress 81 spacecraft is a Russian resupply freight ship that reached the ISS on June 3.
Universe 1408 was an electronic signals intelligence satellite (spy satellite) operated by the Soviet Union. It has remained in low Earth orbit because September 1982. It became inactive after about 2 years, however was left in orbit. In November 2021, the satellite was ruined in a Russian anti-satellite weapon test, leaving a field of area debris in an orbit that can position a risk to the ISS and other satellites.

The International Space Station is imagined from the SpaceX Crew Dragon Endeavour during a fly around of the orbiting lab that took location following its undocking from the Harmony modules space-facing port on November 8, 2021. Credit: NASA
Last evening, the Progress 81 docked to the International Space Station (ISS) fired its thrusters for 5 minutes, 5 seconds in a Pre-Determined Debris Avoidance Maneuver (PDAM) to provide the complex an extra measure of distance far from the anticipated track of a piece of Russian Cosmos 1408 debris.
The thruster shooting took place at 8:25 p.m. EDT and the maneuver had no effect on station operations. It was anticipated that the fragment might have passed within about 3 miles of the station without the maneuver.
The PDAM increased the stations altitude by 2/10 of a mile at apogee and 8/10 of a mile at perigee and left the station in an orbit of 264.3 x 255.4 statute miles.

By NASA
October 25, 2022