Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/18/2019   18:33:03   (   0.01, -75.19) (  -0.43, -77.28)  237.21                80
 06/19/2019   18:16:58   (   0.00, -75.20) (   0.57, -72.75)  279.50                80
 06/21/2019   06:38:47   (   0.00, -75.20) (   0.61, -78.02)  320.54                80
 06/22/2019   06:17:22   (   0.01, -75.20) (  -0.39, -73.48)  196.40                80
 06/23/2019   18:39:19   (  -0.01, -75.21) (  -0.83, -78.78)  407.12                80
 06/24/2019   18:23:14   (  -0.02, -75.22) (   0.17, -74.25)  110.32                80
 06/26/2019   06:45:02   (   0.02, -75.24) (   1.01, -79.52)  488.48                80
 06/27/2019   06:23:39   (   0.02, -75.25) (  -0.05, -75.00)   29.13                80
 06/29/2019   18:26:52   (  -0.01, -75.28) (  -0.09, -75.78)   56.36                80
 06/30/2019   18:10:47   (  -0.01, -75.29) (   0.91, -71.25)  461.46                80