Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 12 23.  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   (  22.58, 147.49) 12/26/2017   16:02:03    (  23.27, 144.50)  315.65            158
 01/03/2018   15:10:01   (  22.63, 159.86) 01/03/2018   15:11:14    (  23.24, 157.19)  281.79             73
 01/06/2018   03:31:53   (  22.69, 147.51) 01/06/2018   03:28:23    (  25.85, 144.90)  439.56            210
 01/11/2018   15:59:31   (  22.61, 147.50) 01/11/2018   16:01:54    (  23.30, 144.53)  313.58            143
 01/19/2018   15:10:05   (  22.63, 159.87) 01/19/2018   15:11:05    (  23.22, 157.21)  280.54             60