Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 2 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)
 02/18/2018   18:26:19   (   0.01, -75.20) (  -0.09, -75.68)   54.26                80
 02/19/2018   18:10:14   (   0.01, -75.21) (   0.92, -71.14)  462.85                80
 02/21/2018   06:32:00   (  -0.01, -75.20) (   0.27, -76.41)  138.32                80
 02/22/2018   06:10:35   (  -0.01, -75.20) (  -0.74, -71.87)  378.80                80
 02/23/2018   18:32:30   (   0.02, -75.22) (  -0.44, -77.17)  223.00                80
 02/24/2018   18:16:25   (   0.02, -75.22) (   0.57, -72.64)  294.35                80
 02/26/2018   06:38:11   (  -0.02, -75.22) (   0.61, -77.90)  306.26                80
 02/27/2018   06:16:46   (  -0.02, -75.23) (  -0.47, -73.38)  211.24                80
 02/28/2018   18:38:42   (   0.03, -75.25) (  -0.71, -78.68)  389.99                80
 03/01/2018   18:22:36   (   0.03, -75.27) (   0.30, -74.15)  128.22                80
 03/03/2018   06:44:22   (  -0.03, -75.28) (   0.88, -79.41)  470.55                80