Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/22/2019   18:33:16   (  -0.00, -75.21) (  -0.47, -77.23)  230.46                80
 09/23/2019   18:17:12   (  -0.00, -75.21) (   0.56, -72.70)  286.46                80
 09/25/2019   06:38:59   (   0.01, -75.20) (   0.64, -77.96)  314.43                80
 09/26/2019   06:17:35   (   0.01, -75.21) (  -0.38, -73.43)  202.71                80
 09/27/2019   18:39:31   (  -0.01, -75.23) (  -0.79, -78.73)  398.86                80
 09/28/2019   18:23:26   (  -0.01, -75.24) (   0.24, -74.20)  118.80                80
 09/30/2019   06:45:14   (   0.01, -75.25) (   0.96, -79.46)  480.74                80
 10/01/2019   06:23:49   (   0.01, -75.26) (  -0.07, -74.94)   37.13                80
 10/03/2019   18:27:00   (  -0.01, -75.31) (  -0.12, -75.70)   45.22                80
 10/04/2019   18:10:56   (  -0.01, -75.32) (   0.91, -71.17)  473.30                80