Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 4 26.  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   02:42:12   (  18.02, 160.88) 04/28/2015   02:40:00    (  17.79, 159.77)  120.37            132
 05/03/2015   15:11:02   (  22.60, 159.74) 05/03/2015   15:14:30    (  27.37, 158.43)  546.64            208
 05/06/2015   03:30:27   (  14.06, 149.41) 05/06/2015   03:29:20    (  13.78, 148.06)  149.09             67
 05/14/2015   02:42:04   (  18.78, 160.76) 05/14/2015   02:39:39    (  18.58, 159.66)  117.66            145
 05/19/2015   15:10:31   (  22.59, 159.84) 05/19/2015   15:13:59    (  27.14, 158.46)  524.30            208
 05/22/2015   03:29:49   (  14.01, 149.55) 05/22/2015   03:28:43    (  13.71, 148.17)  152.58             66