Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2018   12:54:24   (  -0.13,-128.65) (  -0.79,-125.85)  319.98                80
 12/27/2018   01:15:44   (   0.14,-128.52) (  -0.44,-130.89)  271.93                80
 12/28/2018   01:01:28   (   0.13,-128.51) (   0.21,-128.06)   50.05                80
 12/29/2018   00:49:53   (   0.13,-128.50) (   0.86,-125.23)  371.83                80
 12/31/2018   13:11:00   (  -0.14,-128.58) (   0.23,-130.25)  190.12                80
 01/01/2019   13:02:03   (  -0.13,-128.57) (  -0.38,-127.41)  131.80                80
 01/02/2019   12:50:28   (  -0.13,-128.55) (  -1.04,-124.58)  453.58                80
 01/04/2019   01:23:25   (   0.13,-128.43) (  -0.81,-132.46)  460.98                80
 01/05/2019   01:11:50   (   0.12,-128.41) (  -0.15,-129.64)  139.75                80
 01/06/2019   00:57:34   (   0.12,-128.39) (   0.50,-126.81)  181.39                80