Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 4 1.  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)
 04/04/2015   03:29:08   (  10.04, 150.39) 04/04/2015   03:29:08    (   9.69, 148.89)  168.91              0
 04/12/2015   02:41:27   (  15.86, 161.42) 04/12/2015   02:39:51    (  15.60, 160.23)  131.09             96
 04/20/2015   03:29:51   (  12.06, 149.90) 04/20/2015   03:29:17    (  11.73, 148.46)  160.78             34
 04/28/2015   02:41:33   (  16.84, 161.24) 04/28/2015   02:39:40    (  16.62, 160.04)  130.00            113