Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2018   06:23:15   (  -0.02, -75.20) (  -0.08, -74.86)   38.86                80
 07/12/2018   18:26:27   (   0.02, -75.22) (  -0.06, -75.63)   46.94                80
 07/13/2018   18:10:21   (   0.01, -75.22) (   0.91, -71.09)  470.29                80
 07/15/2018   06:32:09   (  -0.01, -75.22) (   0.25, -76.36)  129.35                80
 07/16/2018   06:10:44   (  -0.01, -75.23) (  -0.79, -71.83)  388.41                80
 07/17/2018   18:32:41   (   0.00, -75.26) (  -0.39, -77.13)  212.94                80
 07/18/2018   18:16:35   (  -0.00, -75.27) (   0.59, -72.59)  305.37                80
 07/20/2018   06:38:22   (  -0.00, -75.29) (   0.58, -77.86)  292.79                80
 07/21/2018   06:16:58   (  -0.00, -75.31) (  -0.46, -73.33)  225.73                80
 07/22/2018   18:38:54   (   0.01, -75.34) (  -0.72, -78.64)  374.78                80
 07/23/2018   18:22:49   (   0.01, -75.37) (   0.26, -74.09)  144.09                80