Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2018   06:32:10   (  -0.03, -75.20) (   0.20, -76.37)  131.94                80
 07/16/2018   06:13:24   (  -0.03, -75.21) (  -0.78, -71.83)  385.77                80
 07/17/2018   18:32:40   (   0.03, -75.23) (  -0.40, -77.13)  216.17                80
 07/18/2018   18:16:36   (   0.03, -75.25) (   0.63, -72.60)  302.06                80
 07/20/2018   06:38:23   (  -0.03, -75.27) (   0.53, -77.87)  295.57                80
 07/21/2018   06:16:58   (  -0.04, -75.29) (  -0.45, -73.33)  223.02                80
 07/22/2018   18:38:54   (   0.04, -75.32) (  -0.73, -78.63)  377.84                80
 07/23/2018   18:22:50   (   0.04, -75.34) (   0.31, -74.10)  141.03                80
 07/25/2018   06:44:37   (  -0.05, -75.38) (   0.85, -79.37)  455.73                80
 07/26/2018   06:23:12   (  -0.05, -75.40) (  -0.19, -74.84)   63.41                80