Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2012 12 25.  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   15:59:40   (  22.68, 147.36) 12/28/2012   15:59:40    (  23.36, 144.65)  286.89              0
 01/05/2013   15:11:54   (  17.40, 158.44) 01/05/2013   15:10:27    (  17.88, 156.00)  263.97             87
 01/13/2013   16:00:43   (  20.82, 146.79) 01/13/2013   16:00:12    (  21.36, 144.17)  278.75             31
 01/19/2013   03:10:53   (  10.08, 154.66) 01/19/2013   03:14:22    (   6.85, 151.16)  527.03            209