Station Avoids Satellite Debris After ATV-5 Fires Engines

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ISS Configuration as of Nov, 9, 2014

The International Space Station configuration as of Nov, 9, 2014, shows the docked ATV-5 on the aft end of the Zvezda service module.

The International Space Station’s “Georges Lemaitre” Automated Transfer Vehicle fired its engines for 3 minutes, 25 seconds at 6:35 a.m. Central time today in a Pre-Determined Debris Avoidance Maneuver (PDAM) to move well away from a small piece of debris from a spent Chinese satellite (Yaogan 12) launched in November 2011.

The maneuver, which was coordinated with Russian and European flight controllers, raised the station’s altitude by 9/10 of a mile at apogee and 2/10 of a mile at perigee and left the station in an orbit of 262.3 x 252.0 statute miles.

The maneuver substituted for a previously planned reboost of the station that had been planned for Wednesday night which would have been required regardless to place the station at the proper altitude for the upcoming launch of the Expedition 42/43 crew on Nov. 23, U.S. time, on a 4-orbit, 6-hour rendezvous to reach the station.

Without the maneuver, the debris would have passed within 7/10 of a mile of the station at 8:40 a.m. Central time. The three-person crew on the station was informed of the potential conjunction and maneuver plans on Tuesday and was never in any danger.

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