Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 5 12.  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)
 05/14/2015   02:41:50   (  17.47, 161.03) 05/14/2015   02:39:47    (  17.23, 159.86)  126.89            123
 05/22/2015   03:29:23   (  11.83, 149.99) 05/22/2015   03:28:53    (  11.50, 148.48)  167.91             30
 05/30/2015   02:40:16   (  14.82, 161.80) 05/30/2015   02:38:57    (  14.55, 160.45)  148.49             79
 06/01/2015   16:21:19   (  10.00, 140.15) 06/01/2015   16:17:49    (   5.60, 138.84)  510.73            210
 06/07/2015   03:27:44   (  10.11, 150.62) 06/07/2015   03:28:15    (   9.71, 148.86)  198.03             31