Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2016 4 18.  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)
 04/19/2016   15:10:56   (  22.60, 159.64) 04/19/2016   15:12:03    (  23.12, 157.26)  249.78             67
 04/22/2016   03:32:47   (  22.68, 147.31) 04/22/2016   03:29:17    (  26.15, 144.93)  455.13            210
 04/27/2016   16:00:23   (  22.60, 147.27) 04/27/2016   16:02:48    (  23.20, 144.58)  283.17            145
 05/05/2016   15:10:54   (  22.63, 159.63) 05/05/2016   15:12:05    (  23.15, 157.24)  252.22             71
 05/08/2016   03:32:44   (  22.70, 147.31) 05/08/2016   03:29:14    (  25.85, 144.97)  422.66            210
 05/13/2016   16:00:17   (  22.64, 147.29) 05/13/2016   16:02:50    (  23.24, 144.56)  287.29            153