Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2018 7 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)
 07/22/2018   16:00:00   (  22.61, 147.39) 07/22/2018   16:01:37    (  23.19, 144.67)  286.82             97
 07/30/2018   15:10:50   (  22.58, 159.68) 07/30/2018   15:11:00    (  23.13, 157.32)  249.13             10
 08/07/2018   16:00:31   (  22.59, 147.25) 08/07/2018   16:01:50    (  23.19, 144.63)  276.64             79
 08/15/2018   15:11:22   (  22.36, 159.49) 08/15/2018   15:11:17    (  22.84, 157.21)  240.13              5