Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 6 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)
 06/29/2018   06:32:13   (   0.01, -75.20) (   0.25, -76.39)  135.50                80
 06/30/2018   06:10:47   (   0.01, -75.20) (  -0.73, -71.85)  381.38                80
 07/01/2018   18:32:43   (  -0.01, -75.21) (  -0.46, -77.15)  222.17                80
 07/02/2018   18:16:39   (  -0.00, -75.21) (   0.58, -72.62)  295.17                80
 07/04/2018   06:38:26   (   0.00, -75.23) (   0.60, -77.89)  303.40                80
 07/05/2018   06:17:02   (   0.00, -75.24) (  -0.44, -73.36)  214.18                80
 07/06/2018   18:38:58   (   0.00, -75.25) (  -0.74, -78.66)  388.52                80
 07/07/2018   18:22:53   (  -0.00, -75.26) (   0.23, -74.12)  129.46                80
 07/09/2018   06:44:40   (   0.00, -75.29) (   0.94, -79.39)  468.17                80
 07/10/2018   06:23:15   (   0.00, -75.30) (  -0.09, -74.86)   49.72                80