Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 9 4.  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)
 09/08/2015   15:09:52   (  22.63, 159.85) 09/08/2015   15:13:21    (  27.00, 158.24)  511.79            209
 09/11/2015   03:29:28   (  14.52, 149.39) 09/11/2015   03:28:14    (  14.20, 147.85)  169.40             74
 09/19/2015   02:41:25   (  19.64, 160.59) 09/19/2015   02:38:46    (  19.36, 159.34)  134.86            159
 09/24/2015   15:09:50   (  22.64, 159.84) 09/24/2015   15:13:19    (  25.89, 157.99)  407.13            209
 09/27/2015   03:29:40   (  15.54, 149.16) 09/27/2015   03:28:09    (  15.23, 147.66)  165.16             91