Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2015 4 20.  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   02:42:06   (  17.84, 160.94) 04/28/2015   02:39:57    (  17.59, 159.81)  122.18            129
 05/03/2015   15:10:55   (  22.60, 159.79) 05/03/2015   15:14:23    (  27.79, 158.55)  590.37            208
 05/06/2015   03:30:09   (  13.52, 149.58) 05/06/2015   03:29:11    (  13.25, 148.19)  154.29             58
 05/14/2015   02:41:33   (  17.90, 161.04) 05/14/2015   02:39:23    (  17.67, 159.88)  126.20            130