Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2018   18:10:10   (  -0.01, -75.19) (   0.93, -71.13)  463.26                80
 03/09/2018   06:31:57   (   0.01, -75.19) (   0.31, -76.39)  137.43                80
 03/10/2018   06:10:34   (   0.01, -75.20) (  -0.75, -71.87)  380.04                80
 03/11/2018   18:32:31   (  -0.01, -75.24) (  -0.44, -77.18)  220.50                80
 03/12/2018   18:16:27   (  -0.01, -75.26) (   0.56, -72.64)  297.54                80
 03/14/2018   06:38:15   (   0.02, -75.27) (   0.62, -77.92)  301.73                80
 03/15/2018   06:16:52   (   0.01, -75.29) (  -0.44, -73.40)  216.40                80
 03/16/2018   18:38:49   (  -0.02, -75.33) (  -0.74, -78.71)  383.53                80
 03/17/2018   18:22:44   (  -0.02, -75.36) (   0.25, -74.17)  135.18                80
 03/19/2018   06:44:33   (   0.02, -75.38) (   0.92, -79.44)  462.70                80
 03/20/2018   06:23:08   (   0.02, -75.41) (  -0.08, -74.91)   55.92                80