Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/05/2018   06:17:02   (  -0.01, -75.20) (  -0.43, -73.36)  210.33                80
 07/06/2018   18:38:58   (   0.02, -75.22) (  -0.75, -78.66)  392.33                80
 07/07/2018   18:22:53   (   0.02, -75.23) (   0.28, -74.13)  125.22                80
 07/09/2018   06:44:41   (  -0.02, -75.24) (   0.89, -79.40)  473.75                80
 07/10/2018   06:23:15   (  -0.02, -75.25) (  -0.09, -74.86)   43.78                80
 07/12/2018   18:26:27   (   0.03, -75.27) (  -0.05, -75.63)   41.13                80
 07/13/2018   18:10:23   (   0.03, -75.29) (   0.99, -71.11)  476.72                80
 07/15/2018   06:32:10   (  -0.04, -75.30) (   0.18, -76.37)  121.47                80
 07/16/2018   06:10:44   (  -0.04, -75.32) (  -0.80, -71.83)  396.85                80
 07/17/2018   18:32:41   (   0.04, -75.35) (  -0.38, -77.14)  204.29                80
 07/18/2018   18:16:36   (   0.04, -75.37) (   0.66, -72.61)  314.64                80