Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 4 23.  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)
 04/25/2017   03:31:53   (  22.69, 147.49) 04/25/2017   03:28:23    (  27.33, 144.62)  591.09            210
 04/30/2017   15:59:26   (  22.61, 147.45) 04/30/2017   16:01:33    (  23.23, 144.62)  298.57            127
 05/08/2017   15:09:53   (  22.62, 159.83) 05/08/2017   15:10:50    (  23.16, 157.28)  267.77             57
 05/11/2017   03:31:41   (  22.67, 147.52) 05/11/2017   03:28:11    (  26.54, 144.82)  509.06            210
 05/16/2017   15:59:12   (  22.62, 147.49) 05/16/2017   16:01:34    (  23.29, 144.63)  302.87            142