Simultaneous Nadir Overpasses (SNOs) between AQUA and NPP over region 
TLE Epoch: 2018 12 18.  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)
 12/21/2018   15:09:50   (  22.62, 159.86) 12/21/2018   15:11:26    (  23.23, 157.15)  285.56             96
 12/24/2018   03:31:41   (  22.66, 147.53) 12/24/2018   03:28:12    (  24.44, 145.23)  306.54            209
 12/29/2018   15:59:19   (  22.63, 147.50) 12/29/2018   16:02:09    (  23.30, 144.48)  318.05            170
 01/06/2019   15:09:54   (  22.60, 159.85) 01/06/2019   15:11:24    (  23.19, 157.13)  285.86             90
 01/09/2019   03:31:44   (  22.64, 147.53) 01/09/2019   03:28:15    (  24.80, 145.13)  342.95            209
 01/14/2019   15:59:21   (  22.58, 147.49) 01/14/2019   16:02:05    (  23.29, 144.47)  318.86            164