Posted on 2 Apr 2011 by Daniel
ATV boosts ISS safely away from space debris
(Updated 5-4-2011) NASA says the DAM burn ran for 3 min 18 seconds and achieved a change in velocity of 0.49 m/s, increasing the mean altitude by 0.85 km.
(Updated 4-4-2011) At 4:46 CEST this morning, ISS mission controllers used ATV Johannes Kepler‘s thrusters to boost the ISS so as to avoid any possibility of intercepting a catalogued piece of space debris. The ATV’s Orbit Correction System (ATV OCS) – a set of 4 thrusters mounted on the bottom of the vessel – was commanded to give the ISS a slightly faster orbital speed – 0.5 m/second.
The Debris Avoidance Manoeuvre (DAM) was made necessary by the fact that a piece of debris from the February 2009 collision between Russia’s COSMOS 2251 and the Iridium 33 satellite was making close passes by the Station.