Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 12 21.  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)
 12/26/2017   15:59:25   (  22.60, 147.49) 12/26/2017   16:02:03    (  23.28, 144.50)  315.63            158
 01/03/2018   15:10:02   (  22.59, 159.85) 01/03/2018   15:11:15    (  23.20, 157.18)  281.97             73
 01/06/2018   03:31:53   (  22.68, 147.52) 01/06/2018   03:28:23    (  25.83, 144.90)  439.36            210
 01/11/2018   15:59:30   (  22.63, 147.50) 01/11/2018   16:01:53    (  23.32, 144.53)  313.56            143