Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2018 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2018   09:41:46   (   0.01, -75.22) (   0.55, -77.52)  262.11                80
 12/24/2018   09:27:31   (   0.02, -75.23) (  -0.11, -74.69)   62.10                80
 12/25/2018   09:15:55   (   0.02, -75.24) (  -0.78, -71.86)  386.41                80
 12/27/2018   21:37:16   (  -0.03, -75.26) (  -0.39, -76.92)  188.66                80
 12/28/2018   21:28:20   (  -0.03, -75.28) (   0.26, -74.09)  136.23                80
 12/29/2018   21:16:45   (  -0.04, -75.30) (   0.92, -71.26)  461.25                80
 12/31/2018   09:49:26   (   0.04, -75.35) (   0.89, -79.09)  426.85                80
 01/01/2019   09:37:51   (   0.04, -75.37) (   0.22, -76.27)  101.42                80
 01/02/2019   09:23:34   (   0.04, -75.39) (  -0.40, -73.43)  224.26                80