Other estimates (
http://www.spaceflight101.com/phobos-grunt-re-entry-information.html):
Spaceflight101: January 15, 2012 - 17:54 UTC +/- 60 Minutes
USSTRATCOM: January 15, 2012 - 16:11 to 18:35 UTC
Harro Zimmer: January 15, 2012 - 17:49 UTC +/- 45 Minutes
Ted Molczan #1: January 15, 2012 - 16:37 UTC +/- 90 Minutes
Ted Molczan #2: January 15, 2012 - 20:07 +/- 129 Minutes
Aerospace Corp.: January 15, 2012 - 19:21 UTC +/- 03 Hours
Roscosmos: January 15, 2012 - 18:53 UTC +/- 130 Minutes
Soon we'll know whos atmosphere model is the best.
Spaceflight101: Ground Track of most probable Entry Orbit
Why the Argument of Perigee could have moved?