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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2019   06:38:14   (  -0.00, -75.20) (   0.62, -77.92)  310.51                80
 04/19/2019   06:16:50   (   0.00, -75.20) (  -0.42, -73.39)  205.72                80
 04/20/2019   18:38:47   (  -0.00, -75.20) (  -0.78, -78.70)  398.66                80
 04/21/2019   18:22:44   (   0.00, -75.21) (   0.26, -74.18)  118.03                80
 04/23/2019   06:44:32   (   0.00, -75.22) (   0.94, -79.44)  481.90                80
 04/24/2019   06:23:09   (   0.00, -75.22) (  -0.10, -74.92)   35.05                80
 04/26/2019   18:26:22   (   0.00, -75.25) (  -0.12, -75.69)   51.43                80
 04/27/2019   18:10:18   (   0.00, -75.26) (   0.93, -71.17)  466.07                80
 04/29/2019   06:32:06   (  -0.00, -75.28) (   0.28, -76.44)  132.50                80
 04/30/2019   06:10:43   (  -0.00, -75.30) (  -0.76, -71.92)  385.30                80