Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/28/2018   06:32:16   (   0.00, -75.19) (   0.26, -76.44)  141.15                80
 05/29/2018   06:10:51   (   0.00, -75.20) (  -0.71, -71.89)  375.59                80
 05/30/2018   18:32:47   (   0.00, -75.20) (  -0.47, -77.20)  228.26                80
 05/31/2018   18:16:43   (   0.01, -75.21) (   0.56, -72.67)  288.84                80
 06/02/2018   06:38:31   (  -0.01, -75.22) (   0.60, -77.94)  310.19                80
 06/03/2018   06:17:06   (  -0.01, -75.23) (  -0.43, -73.41)  207.07                80
 06/04/2018   18:39:03   (   0.02, -75.24) (  -0.75, -78.72)  396.02                80
 06/05/2018   18:22:58   (   0.02, -75.25) (   0.28, -74.19)  121.83                80
 06/07/2018   06:44:46   (  -0.02, -75.28) (   0.93, -79.45)  475.75                80
 06/08/2018   06:23:21   (  -0.02, -75.29) (  -0.09, -74.92)   42.28                80
 06/10/2018   18:26:33   (   0.03, -75.33) (  -0.06, -75.69)   41.78                80