Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 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)
 04/23/2019   06:44:32   (  -0.00, -75.19) (   0.94, -79.44)  484.26                80
 04/24/2019   06:23:08   (  -0.00, -75.20) (  -0.04, -74.91)   32.18                80
 04/26/2019   18:26:22   (   0.00, -75.22) (  -0.11, -75.69)   54.43                80
 04/27/2019   18:10:18   (   0.00, -75.23) (   0.93, -71.17)  462.64                80
 04/29/2019   06:32:06   (  -0.00, -75.23) (   0.27, -76.44)  137.52                80
 04/30/2019   06:10:43   (  -0.00, -75.24) (  -0.77, -71.92)  379.77                80
 05/01/2019   18:32:40   (   0.00, -75.27) (  -0.42, -77.22)  222.16                80
 05/02/2019   18:16:36   (   0.00, -75.28) (   0.57, -72.69)  295.67                80
 05/04/2019   06:38:25   (  -0.00, -75.30) (   0.57, -77.97)  303.29                80
 05/05/2019   06:17:01   (  -0.00, -75.32) (  -0.41, -73.43)  214.49                80