Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/16/2019   06:10:51   (   0.00, -75.19) (  -0.70, -71.93)  371.59                80
 05/17/2019   18:32:48   (  -0.00, -75.21) (  -0.47, -77.24)  231.98                80
 05/18/2019   18:16:45   (  -0.00, -75.21) (   0.58, -72.72)  285.07                80
 05/20/2019   06:38:33   (  -0.00, -75.22) (   0.62, -77.98)  314.55                80
 05/21/2019   06:17:09   (  -0.01, -75.23) (  -0.38, -73.45)  202.57                80
 05/22/2019   18:39:06   (   0.01, -75.25) (  -0.79, -78.76)  400.38                80
 05/23/2019   18:23:02   (   0.01, -75.26) (   0.26, -74.24)  117.29                80
 05/25/2019   06:44:51   (  -0.01, -75.29) (   0.94, -79.51)  480.94                80
 05/26/2019   06:23:27   (  -0.02, -75.30) (  -0.12, -74.99)   37.14                80
 05/28/2019   18:26:40   (   0.02, -75.35) (  -0.05, -75.76)   46.28                80