Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2019   06:31:55   (   0.01, -75.21) (   0.28, -76.39)  135.07                80
 04/14/2019   06:10:32   (   0.01, -75.21) (  -0.76, -71.87)  381.48                80
 04/15/2019   18:32:29   (  -0.01, -75.22) (  -0.45, -77.18)  222.41                80
 04/16/2019   18:16:26   (  -0.01, -75.23) (   0.59, -72.65)  294.55                80
 04/18/2019   06:38:14   (   0.00, -75.25) (   0.61, -77.92)  304.78                80
 04/19/2019   06:16:50   (  -0.01, -75.26) (  -0.43, -73.40)  212.46                80
 04/20/2019   18:38:48   (   0.02, -75.28) (  -0.77, -78.70)  390.45                80
 04/21/2019   18:22:44   (   0.02, -75.30) (   0.27, -74.18)  127.26                80
 04/23/2019   06:44:33   (  -0.03, -75.33) (   0.93, -79.45)  470.83                80
 04/24/2019   06:23:09   (  -0.02, -75.34) (  -0.11, -74.93)   47.26                80