Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 12 7.  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)
 12/10/2017   15:59:16   (  22.62, 147.50) 12/10/2017   16:02:10    (  23.29, 144.48)  318.26            174
 12/18/2017   15:09:49   (  22.60, 159.87) 12/18/2017   15:11:26    (  23.19, 157.14)  288.02             97
 12/21/2017   03:31:37   (  22.67, 147.55) 12/21/2017   03:28:08    (  24.31, 145.26)  297.16            209
 12/26/2017   15:59:12   (  22.62, 147.54) 12/26/2017   16:02:08    (  23.31, 144.47)  323.64            176
 01/03/2018   15:09:41   (  22.62, 159.93) 01/03/2018   15:11:24    (  23.26, 157.13)  295.23            103