Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 9 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)
 09/06/2018   06:38:57   (  -0.03, -75.22) (   0.55, -77.95)  309.98                80
 09/07/2018   06:17:33   (  -0.03, -75.23) (  -0.44, -73.41)  207.32                80
 09/08/2018   18:39:30   (   0.04, -75.26) (  -0.73, -78.72)  394.59                80
 09/09/2018   18:23:26   (   0.04, -75.27) (   0.26, -74.18)  123.33                80
 09/11/2018   06:45:15   (  -0.04, -75.29) (   0.88, -79.46)  475.30                80
 09/12/2018   06:23:51   (  -0.04, -75.31) (  -0.11, -74.93)   43.05                80
 09/14/2018   18:27:03   (   0.04, -75.37) (  -0.06, -75.70)   38.89                80
 09/15/2018   18:11:00   (   0.04, -75.39) (   0.99, -71.18)  480.02                80
 09/17/2018   06:32:49   (  -0.05, -75.42) (   0.16, -76.46)  117.48                80
 09/18/2018   06:11:25   (  -0.05, -75.45) (  -0.84, -71.93)  401.55                80