Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2018   18:23:10   (  -0.01, -75.21) (   0.22, -74.26)  109.17                80
 01/14/2018   06:44:57   (   0.01, -75.18) (   1.00, -79.52)  494.08                80
 01/15/2018   06:23:32   (   0.01, -75.19) (  -0.06, -74.99)   23.21                80
 01/17/2018   18:26:42   (  -0.01, -75.24) (  -0.12, -75.76)   58.90                80
 01/18/2018   18:07:57   (  -0.01, -75.25) (   0.88, -71.22)  458.71                80
 01/20/2018   06:32:24   (   0.01, -75.23) (   0.28, -76.49)  143.32                80
 01/21/2018   06:10:58   (   0.00, -75.25) (  -0.72, -71.96)  374.50                80
 01/22/2018   18:35:34   (  -0.01, -75.30) (  -0.46, -77.26)  223.76                80
 01/23/2018   18:14:09   (  -0.00, -75.31) (   0.60, -72.74)  294.49                80
 01/25/2018   06:38:36   (   0.01, -75.31) (   0.62, -77.99)  306.53                80