Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 4.  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   (   0.02, -75.18) (   0.34, -76.51)  151.86                80
 01/05/2018   06:11:08   (   0.01, -75.19) (  -0.72, -71.99)  365.82                80
 01/06/2018   18:35:44   (  -0.01, -75.24) (  -0.47, -77.29)  232.90                80
 01/07/2018   18:14:18   (  -0.01, -75.26) (   0.53, -72.75)  285.41                80
 01/09/2018   06:38:45   (   0.01, -75.26) (   0.64, -78.02)  314.99                80
 01/10/2018   06:17:20   (   0.01, -75.28) (  -0.36, -73.49)  203.66                80
 01/11/2018   18:41:56   (  -0.01, -75.34) (  -0.76, -78.80)  393.82                80
 01/12/2018   18:20:31   (  -0.01, -75.36) (   0.24, -74.26)  125.25                80
 01/14/2018   06:44:58   (   0.02, -75.37) (   0.93, -79.53)  473.97                80
 01/15/2018   06:23:33   (   0.02, -75.39) (  -0.07, -75.00)   45.20                80
 01/17/2018   18:29:22   (  -0.02, -75.49) (  -0.10, -75.76)   32.06                80