Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 8 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/01/2018   06:32:39   (  -0.02, -75.21) (   0.25, -76.42)  138.03                80
 09/02/2018   06:11:16   (  -0.02, -75.22) (  -0.79, -71.90)  379.10                80
 09/03/2018   18:33:13   (   0.03, -75.24) (  -0.38, -77.21)  223.87                80
 09/04/2018   18:17:08   (   0.03, -75.25) (   0.61, -72.67)  293.39                80
 09/06/2018   06:38:57   (  -0.04, -75.26) (   0.59, -77.94)  306.10                80
 09/07/2018   06:17:33   (  -0.04, -75.27) (  -0.46, -73.42)  211.39                80
 09/08/2018   18:39:31   (   0.04, -75.29) (  -0.71, -78.73)  390.71                80
 09/09/2018   18:23:26   (   0.04, -75.31) (   0.28, -74.19)  127.41                80
 09/11/2018   06:45:15   (  -0.05, -75.34) (   0.86, -79.47)  470.42                80
 09/12/2018   06:23:51   (  -0.04, -75.36) (  -0.13, -74.93)   48.12                80