Headlines > News > Resupply Craft Undocks, New Supply Vehicle Due June 15

Resupply Craft Undocks, New Supply Vehicle Due June 15

Published by Klaus Schmidt on Tue Jun 11, 2013 2:59 pm via: NASA
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A trash-filled ISS Progress 51 resupply craft undocked from the aft-end port of the Zvezda service module Tuesday at 9:58 a.m. EDT. Commander Pavel Vinogradov closed the Russian cargo craft’s hatch Monday after a 6-1/2 week stay at the International Space Station.

The Progress 51 delivered 3.1 tons of food, fuel and equipment for the station crew on April 26. It had launched two days earlier from the Baikonur Cosmodrome in Kazakhstan. However, after reaching orbit one of its antennas for the KURS automated rendezvous system did not deploy.

As the Progress cargo craft departed, the ship’s external cameras focused on navigational sensors on the Zvezda docking port. Imagery was gathered to confirm the sensors were not damaged when the Progress arrived at the station with one of its navigational antennas folded against its side. Those sensors are required for a new cargo ship to dock properly June 15.

The Progress 51 will orbit Earth at a safe distance from the station for a few days while controllers in Moscow perform engineering tests. Afterwards, the cargo craft will re-enter the atmosphere over the Pacific Ocean for a fiery disposal.

Meanwhile, Europe’s Automated Transfer Vehicle-4 (ATV-4) is closing in on the station waiting to occupy the same port that hosted the Progress 51. Nicknamed the “Albert Einstein,” the ATV-4 will automatically dock to the station June 15 after launching ten days earlier from Kourou, French Guiana, atop an Ariane 5 rocket.

The ATV-4 is delivering 5,465 pounds of dry cargo, experiment hardware and supplies. It is also carrying 1,896 pounds of propellant for transfer to the Zvezda service module, 5,688 pounds of propellant for reboost and debris avoidance maneuver capability, 1,257 pounds of water and 220 pounds of oxygen and air.

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