The total solar eclipse of July 22, 2009 is said to be the longest eclipse of this century. For details on eclipse see NASA at:
Found that the best satellite imagery is in the visible spectrum on the MTSAT-1R satellite:
Sector: Full disk
Start Time: 2009/07/22 00UTC
End Time: 2009/07/22 05UTC
I've seen eclipses before and have noticed cooling of the air. Was a bit surprised that IR did not show this cooling.