Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2018   18:26:26   (   0.03, -75.20) (  -0.10, -75.62)   48.59                80
 07/13/2018   18:10:22   (   0.03, -75.21) (   0.94, -71.09)  468.77                80
 07/15/2018   06:32:09   (  -0.03, -75.22) (   0.23, -76.36)  130.39                80
 07/16/2018   06:10:45   (  -0.03, -75.23) (  -0.81, -71.83)  387.38                80
 07/17/2018   18:32:41   (   0.03, -75.25) (  -0.37, -77.14)  214.29                80
 07/18/2018   18:16:35   (   0.03, -75.27) (   0.61, -72.60)  304.04                80
 07/20/2018   06:38:23   (  -0.04, -75.29) (   0.55, -77.86)  293.59                80
 07/21/2018   06:16:58   (  -0.04, -75.31) (  -0.48, -73.34)  225.06                80
 07/22/2018   18:41:35   (   0.04, -75.35) (  -0.69, -78.64)  375.49                80
 07/23/2018   18:21:50   (   0.05, -75.37) (   0.35, -74.11)  143.45                20
 07/25/2018   06:44:37   (  -0.05, -75.40) (   0.82, -79.38)  453.29                80