Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 5 10.  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   02:41:51   (  17.51, 161.02) 05/14/2015   02:39:47    (  17.25, 159.85)  126.62            124
 05/22/2015   03:29:32   (  12.09, 149.91) 05/22/2015   03:28:58    (  11.79, 148.41)  165.98             34
 05/30/2015   02:40:40   (  15.51, 161.59) 05/30/2015   02:39:09    (  15.22, 160.28)  143.44             91