Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 11 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/18/2018   18:11:01   (  -0.00, -75.25) (   0.91, -71.26)  455.47                80
 11/20/2018   06:30:08   (   0.00, -75.26) (   0.29, -76.53)  144.16                80
 11/21/2018   06:14:04   (   0.00, -75.26) (  -0.73, -72.00)  372.33                80
 11/22/2018   18:33:20   (  -0.00, -75.26) (  -0.47, -77.30)  233.16                80
 11/23/2018   18:17:16   (  -0.00, -75.26) (   0.55, -72.78)  283.41                80
 11/25/2018   06:39:03   (   0.00, -75.28) (   0.64, -78.04)  315.92                80
 11/26/2018   06:17:39   (  -0.00, -75.28) (  -0.38, -73.52)  200.62                80
 11/27/2018   18:39:35   (   0.01, -75.28) (  -0.81, -78.82)  404.68                80
 11/28/2018   18:23:30   (   0.01, -75.28) (   0.21, -74.29)  112.24                80
 11/30/2018   06:45:19   (  -0.01, -75.31) (   0.93, -79.57)  486.12                80
 12/01/2018   06:23:54   (  -0.01, -75.32) (  -0.10, -75.05)   31.38                80