Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2018   06:32:47   (  -0.01, -75.20) (   0.27, -76.43)  139.91                80
 09/18/2018   06:11:24   (  -0.02, -75.21) (  -0.78, -71.91)  376.57                80
 09/19/2018   18:36:00   (   0.02, -75.20) (  -0.44, -77.20)  228.29                80
 09/20/2018   18:17:16   (   0.02, -75.21) (   0.61, -72.68)  288.75                80
 09/22/2018   06:39:05   (  -0.01, -75.23) (   0.58, -77.95)  309.57                80
 09/23/2018   06:17:40   (  -0.01, -75.24) (  -0.41, -73.41)  207.87                80
 09/24/2018   18:39:38   (   0.01, -75.25) (  -0.74, -78.72)  395.68                80
 09/25/2018   18:23:33   (   0.00, -75.26) (   0.25, -74.19)  122.09                80
 09/27/2018   06:45:21   (  -0.00, -75.29) (   0.94, -79.46)  475.29                80
 09/28/2018   06:26:38   (  -0.00, -75.30) (  -0.11, -74.94)   42.76                80
 09/30/2018   18:27:10   (  -0.01, -75.33) (  -0.10, -75.70)   42.27                80