Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2019   18:22:44   (   0.00, -75.20) (   0.25, -74.18)  117.57                80
 04/23/2019   06:44:32   (  -0.00, -75.20) (   0.95, -79.44)  483.94                80
 04/24/2019   06:23:09   (   0.00, -75.20) (  -0.09, -74.92)   32.68                80
 04/26/2019   18:26:23   (  -0.00, -75.23) (  -0.08, -75.70)   53.45                80
 04/27/2019   18:10:18   (  -0.00, -75.24) (   0.90, -71.17)  463.82                80
 04/29/2019   06:32:07   (  -0.00, -75.25) (   0.26, -76.45)  136.24                80
 04/30/2019   06:10:44   (   0.00, -75.26) (  -0.78, -71.92)  381.21                80
 05/01/2019   18:32:41   (   0.00, -75.29) (  -0.43, -77.23)  220.43                80
 05/02/2019   18:16:38   (  -0.00, -75.31) (   0.61, -72.71)  297.54                80
 05/04/2019   06:38:26   (   0.00, -75.33) (   0.61, -77.97)  301.30                80