Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2021 12 17.  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)
 12/21/2021   15:59:59   (  22.63, 147.46) 12/21/2021   16:02:53    (  23.32, 144.44)  318.22            174
 12/29/2021   15:10:39   (  22.61, 159.81) 12/29/2021   15:12:00    (  23.20, 157.13)  281.95             81
 01/01/2022   03:32:31   (  22.65, 147.47) 01/01/2022   03:29:02    (  25.57, 144.94)  414.05            209
 01/06/2022   16:00:11   (  22.62, 147.44) 01/06/2022   16:02:34    (  23.28, 144.49)  311.21            143