Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 17.  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, -75.19) (   0.58, -77.93)  310.65                80
 04/19/2019   06:16:50   (  -0.00, -75.19) (  -0.40, -73.39)  205.52                80
 04/20/2019   18:38:47   (   0.00, -75.20) (  -0.80, -78.70)  398.74                80
 04/21/2019   18:22:44   (   0.00, -75.21) (   0.24, -74.17)  117.85                80
 04/23/2019   06:44:32   (  -0.00, -75.21) (   0.96, -79.44)  482.33                80
 04/24/2019   06:23:08   (  -0.01, -75.22) (  -0.08, -74.92)   34.42                80
 04/26/2019   18:26:22   (   0.00, -75.24) (  -0.07, -75.70)   51.81                80
 04/27/2019   18:10:18   (   0.00, -75.25) (   0.91, -71.17)  465.76                80
 04/29/2019   06:32:07   (  -0.00, -75.28) (   0.23, -76.45)  132.94                80
 04/30/2019   06:10:43   (  -0.00, -75.29) (  -0.75, -71.91)  384.83                80
 05/01/2019   18:32:40   (   0.00, -75.32) (  -0.44, -77.22)  217.20                80