Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 28.  Predictions up to the next  30.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 12/28/2012   15:59:38   (  22.63, 147.36) 12/28/2012   15:59:41    (  23.25, 144.63)  287.94              3
 01/05/2013   15:11:18   (  18.44, 158.76) 01/05/2013   15:10:08    (  18.93, 156.26)  269.06             70
 01/13/2013   15:59:19   (  22.62, 147.45) 01/13/2013   15:59:37    (  23.22, 144.65)  294.62             18
 01/21/2013   15:09:57   (  20.67, 159.47) 01/21/2013   15:09:24    (  21.19, 156.85)  279.29             33