Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2019   06:17:36   (  -0.01, -75.19) (  -0.39, -73.46)  197.81                80
 09/11/2019   18:39:32   (   0.01, -75.19) (  -0.80, -78.76)  406.12                80
 09/12/2019   18:23:27   (   0.01, -75.20) (   0.23, -74.23)  110.93                80
 09/14/2019   06:45:15   (  -0.01, -75.21) (   0.97, -79.49)  488.19                80
 09/15/2019   06:23:50   (  -0.00, -75.22) (  -0.05, -74.96)   29.16                80
 09/17/2019   18:27:02   (   0.00, -75.24) (  -0.11, -75.73)   56.08                80
 09/18/2019   18:10:58   (   0.00, -75.25) (   0.92, -71.20)  461.67                80
 09/20/2019   06:32:45   (  -0.00, -75.27) (   0.29, -76.46)  136.61                80
 09/21/2019   06:11:20   (  -0.00, -75.28) (  -0.74, -71.93)  381.12                80
 09/22/2019   18:33:17   (   0.00, -75.30) (  -0.44, -77.24)  221.40                80
 09/23/2019   18:17:12   (   0.00, -75.31) (   0.59, -72.71)  296.55                80