Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2013 5 14.  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)
 05/21/2013   15:59:32   (  22.62, 147.54) 05/21/2013   16:01:27    (  23.30, 144.46)  324.58            115
 05/29/2013   15:09:34   (  22.59, 160.02) 05/29/2013   15:10:44    (  23.22, 157.14)  302.71             70
 06/01/2013   03:31:13   (  22.69, 147.75) 06/01/2013   03:27:43    (  25.16, 145.01)  391.65            210
 06/06/2013   15:58:22   (  22.61, 147.81) 06/06/2013   16:01:26    (  23.38, 144.51)  347.88            184