Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2018 12 10.  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)
 12/13/2018   15:59:15   (  22.59, 147.50) 12/13/2018   16:02:12    (  23.28, 144.48)  318.46            177
 12/21/2018   15:09:46   (  22.59, 159.87) 12/21/2018   15:11:27    (  23.20, 157.14)  287.77            101
 12/24/2018   03:31:35   (  22.68, 147.55) 12/24/2018   03:28:05    (  24.00, 145.34)  270.01            210
 12/29/2018   15:59:09   (  22.59, 147.53) 12/29/2018   16:02:09    (  23.28, 144.47)  322.46            180
 01/06/2019   15:09:39   (  22.59, 159.91) 01/06/2019   15:11:24    (  23.22, 157.14)  292.40            105