Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 12 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/03/2018   18:29:45   (   0.01, -75.19) (  -0.10, -75.81)   69.85                80
 12/04/2018   18:08:20   (   0.01, -75.20) (   0.86, -71.27)  447.00                80
 12/06/2018   06:32:47   (  -0.00, -75.20) (   0.32, -76.54)  152.93                80
 12/07/2018   06:11:23   (  -0.00, -75.21) (  -0.70, -72.01)  364.17                80
 12/08/2018   18:33:19   (  -0.00, -75.23) (  -0.49, -77.32)  238.90                80
 12/09/2018   18:17:15   (  -0.00, -75.24) (   0.54, -72.79)  278.62                80
 12/11/2018   06:39:02   (   0.01, -75.25) (   0.65, -78.06)  320.16                80
 12/12/2018   06:17:37   (   0.01, -75.27) (  -0.38, -73.53)  197.66                80
 12/13/2018   18:42:14   (  -0.02, -75.29) (  -0.80, -78.84)  404.29                80
 12/14/2018   18:20:49   (  -0.02, -75.31) (   0.23, -74.31)  113.95                80
 12/16/2018   06:45:17   (   0.02, -75.33) (   0.96, -79.58)  483.70                80