Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 4 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2019   18:32:40   (  -0.00, -75.21) (  -0.43, -77.22)  228.53                80
 05/02/2019   18:16:35   (  -0.00, -75.21) (   0.56, -72.68)  288.34                80
 05/04/2019   06:38:24   (   0.00, -75.21) (   0.64, -77.95)  312.61                80
 05/05/2019   06:17:00   (   0.00, -75.22) (  -0.41, -73.43)  204.28                80
 05/06/2019   18:38:58   (   0.00, -75.24) (  -0.78, -78.74)  398.25                80
 05/07/2019   18:22:53   (   0.00, -75.25) (   0.21, -74.20)  118.80                80
 05/09/2019   06:44:42   (  -0.01, -75.25) (   0.93, -79.48)  481.85                80
 05/10/2019   06:23:18   (  -0.01, -75.26) (  -0.06, -74.95)   35.20                80
 05/12/2019   18:26:32   (   0.02, -75.30) (  -0.07, -75.74)   49.68                80
 05/13/2019   18:10:27   (   0.02, -75.31) (   0.92, -71.20)  468.07                80