Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2019   06:45:13   (   0.01, -75.19) (   0.98, -79.58)  499.44                80
 01/02/2019   06:23:49   (   0.01, -75.20) (  -0.05, -75.05)   17.63                80
 01/04/2019   18:29:40   (  -0.01, -75.22) (  -0.13, -75.82)   68.41                80
 01/05/2019   18:08:14   (  -0.01, -75.22) (   0.84, -71.28)  448.84                80
 01/07/2019   06:32:42   (   0.01, -75.23) (   0.29, -76.56)  150.71                80
 01/08/2019   06:11:17   (   0.00, -75.24) (  -0.69, -72.02)  366.79                80
 01/09/2019   18:35:53   (  -0.01, -75.27) (  -0.46, -77.33)  234.86                80
 01/10/2019   18:14:29   (   0.00, -75.29) (   0.58, -72.81)  283.13                80
 01/12/2019   06:38:56   (   0.00, -75.31) (   0.62, -78.07)  315.04                80
 01/13/2019   06:17:32   (  -0.00, -75.32) (  -0.42, -73.55)  203.21                80
 01/14/2019   18:42:07   (  -0.00, -75.36) (  -0.79, -78.84)  397.38                80