Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2021 9 11.  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)
 09/16/2021   15:59:17   (  22.60, 147.48) 09/16/2021   16:02:33    (  23.28, 144.45)  319.89            196
 09/24/2021   15:09:49   (  22.60, 159.85) 09/24/2021   15:11:52    (  23.19, 157.11)  288.37            123
 09/27/2021   03:31:38   (  22.65, 147.54) 09/27/2021   03:28:09    (  22.71, 145.62)  197.25            209
 10/02/2021   15:59:12   (  22.62, 147.51) 10/02/2021   16:02:37    (  23.31, 144.45)  322.30            205
 10/05/2021   02:42:08   (  22.68, 159.91) 10/05/2021   02:38:39    (  27.00, 157.20)  553.37            209