Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2017 12 8.  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   (  22.61, 147.50) 12/10/2017   16:02:10    (  23.28, 144.48)  318.33            174
 12/18/2017   15:09:49   (  22.58, 159.87) 12/18/2017   15:11:25    (  23.20, 157.14)  287.95             96
 12/21/2017   03:31:38   (  22.68, 147.55) 12/21/2017   03:28:08    (  24.31, 145.26)  295.37            210
 12/26/2017   15:59:12   (  22.60, 147.54) 12/26/2017   16:02:07    (  23.27, 144.47)  323.30            175
 01/03/2018   15:09:41   (  22.59, 159.93) 01/03/2018   15:11:22    (  23.20, 157.13)  294.46            101