New update on Russian Mars Probe Phobos-Grunt

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November 28

Although Phobos-Grunt did not respond to several latest radio requests for more telemetry, specialists at NPO Lavochkin prepared a new set of instructions for the probe to raise its orbit, the Interfax news agency reported. New commands would be sent to the spacecraft from Perth and Baikonur, apparently as one-way communications, in the hope that Phobos-Grunt would listen and execute the orbit-boosting maneuver. Odds of success of the latest effort were apparently very low, however, mission specialists decided to try this last-ditch effort in order to prolong the life of the spacecraft before its deorbiting.

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