
A Russian poster for Phobos-Grunt. (Credit: Roscosmos)
ESA PR — 23 November 2011 — On Tuesday, 22 November at 20:25 GMT, ESA’s tracking station at Perth, Australia, established contact with Russia’s Phobos-Grunt spacecraft. Contact with the Mars mission was lost shortly after separation from the launch vehicle was confirmed on 8 November….
Despite these difficulties, it was a success: the signals commanded the spacecraft’s transmitter to switch on, sending a signal down to the station’s 15 m dish antenna.
Data received from Phobos-Grunt were then transmitted from Perth to Russian mission controllers via ESA’s Space Operations Centre, Darmstadt, Germany, for analysis.
Additional communication slots are available on 23 November at 20:21–20:28 GMT and 21:53–22:03 GMT, and ESA teams are working closely with Russian controllers to determine how best to maintain communication with their spacecraft.
Editor’s Note: This is an extremely positive development. What it means for the completion of the mission is unclear. Roscosmos have said they have until early December to salvage the mission. However, widespread reports in the Russian media indicated that the deadline passed on Monday, Nov. 21. However, there are now unconfirmed reports that the Nov. 21 was the deadline for returning soil samples from Phobos. If the mission can be revived, the spacecraft might be able to conduct surface operations at the Martian moon but not sample return.
Roscosmos is doing little to clarify the matter. Its most recent website update reads (via Google Translate):
November 23 at night the ground station of the European Space Agency (Perth, Australia) in one of four communication sessions received a radio signal from the spacecraft (SC) Phobos-Grunt in the illuminated portion of the coil. At present, Russian and European experts analyze the situation to develop further measures to establish communication with the spacecraft Phobos-Grunt.”
The full ESA press release is reprodued below.
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