Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 4 13.  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)
 04/20/2015   03:30:00   (  12.31, 149.83) 04/20/2015   03:29:22    (  12.02, 148.40)  158.69             38
 04/28/2015   02:41:56   (  17.53, 161.04) 04/28/2015   02:39:52    (  17.29, 159.88)  125.40            124
 05/06/2015   03:30:01   (  13.28, 149.67) 05/06/2015   03:29:07    (  12.95, 148.25)  158.48             54