Failed Mars Probe's Fall From Space May Help Re-Entry Predictions
by Leonard David, SPACE.com’s Space Insider Columnist
Date: 16 December 2011 Time: 11:47 AM ET
Tracking experts are predicting that Phobos-Grunt will re-enter Earth's atmosphere on Jan. 9, 2012, but at present, the forecast includes an uncertainty of plus or minus 5 1/2 days. Some analysts are even suggesting that the spacecraft could see its demise as early as Jan. 1 or 2.
Meanwhile, the uncontrolled tumble of Phobos-Grunt into Earth's atmosphere is being eyed as a possible way to sharpen computer tools to more accurately calculate re-entry predictions.
Glenn A. Walsh, Project Director,
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