Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 4 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)
 04/28/2015   02:42:11   (  17.99, 160.89) 04/28/2015   02:39:59    (  17.75, 159.78)  120.41            132
 05/03/2015   15:11:02   (  22.59, 159.75) 05/03/2015   15:14:30    (  27.38, 158.44)  548.76            208
 05/06/2015   03:30:26   (  14.10, 149.41) 05/06/2015   03:29:19    (  13.79, 148.06)  149.41             67
 05/14/2015   02:42:00   (  18.74, 160.78) 05/14/2015   02:39:36    (  18.50, 159.69)  118.30            144
 05/19/2015   15:10:24   (  22.61, 159.87) 05/19/2015   15:13:52    (  27.30, 158.52)  539.50            208
 05/22/2015   03:29:38   (  13.83, 149.62) 05/22/2015   03:28:35    (  13.53, 148.23)  153.87             63