Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 4 22.  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   03:31:52   (  22.65, 147.50) 04/25/2017   03:28:23    (  27.35, 144.61)  597.76            209
 04/30/2017   15:59:26   (  22.60, 147.45) 04/30/2017   16:01:33    (  23.21, 144.61)  298.54            127
 05/08/2017   15:09:55   (  22.59, 159.82) 05/08/2017   15:10:51    (  23.15, 157.28)  267.65             56
 05/11/2017   03:31:43   (  22.70, 147.51) 05/11/2017   03:28:13    (  26.60, 144.80)  513.32            210
 05/16/2017   15:59:13   (  22.64, 147.49) 05/16/2017   16:01:34    (  23.30, 144.63)  302.30            141