Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2021 6 9.  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)
 06/12/2021   15:59:10   (  22.63, 147.49) 06/12/2021   16:01:31    (  23.29, 144.59)  305.92            141
 06/20/2021   15:09:43   (  22.61, 159.85) 06/20/2021   15:10:53    (  23.16, 157.23)  275.03             70
 06/23/2021   03:31:33   (  22.68, 147.53) 06/23/2021   03:28:03    (  25.81, 144.96)  434.61            210
 06/28/2021   15:59:09   (  22.60, 147.49) 06/28/2021   16:01:42    (  23.25, 144.56)  309.40            153
 07/06/2021   15:09:40   (  22.60, 159.86) 07/06/2021   15:11:03    (  23.16, 157.21)  278.99             83