Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2018   06:32:33   (   0.01, -75.17) (   0.32, -76.51)  153.83                80
 01/05/2018   06:11:09   (   0.01, -75.17) (  -0.73, -71.99)  363.20                80
 01/06/2018   18:35:44   (  -0.01, -75.21) (  -0.45, -77.29)  236.77                80
 01/07/2018   18:14:18   (  -0.00, -75.22) (   0.54, -72.75)  280.92                80
 01/09/2018   06:38:46   (   0.00, -75.22) (   0.62, -78.02)  320.02                80
 01/10/2018   06:17:20   (   0.00, -75.23) (  -0.37, -73.49)  198.02                80
 01/11/2018   18:41:55   (  -0.01, -75.28) (  -0.81, -78.79)  400.60                80
 01/12/2018   18:20:31   (  -0.01, -75.30) (   0.25, -74.27)  117.89                80
 01/14/2018   06:44:57   (   0.01, -75.30) (   0.98, -79.52)  481.90                80
 01/15/2018   06:23:33   (   0.01, -75.32) (  -0.08, -75.00)   36.72                80