Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 12 21.  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)
 12/22/2018   13:14:55   (  -0.15,-128.66) (   0.53,-131.51)  324.99                80
 12/23/2018   13:03:20   (  -0.14,-128.66) (  -0.13,-128.68)    2.43                80
 12/24/2018   12:54:24   (  -0.13,-128.65) (  -0.80,-125.85)  319.90                80
 12/27/2018   01:15:44   (   0.14,-128.51) (  -0.42,-130.90)  272.29                80
 12/28/2018   01:01:29   (   0.13,-128.50) (   0.23,-128.07)   49.52                80
 12/29/2018   00:49:53   (   0.13,-128.49) (   0.88,-125.24)  371.29                80
 12/31/2018   13:10:59   (  -0.14,-128.57) (   0.26,-130.24)  190.73                80
 01/01/2019   13:02:03   (  -0.13,-128.56) (  -0.41,-127.41)  131.10                80
 01/02/2019   12:50:27   (  -0.13,-128.55) (  -1.02,-124.57)  452.87                80
 01/04/2019   01:23:24   (   0.13,-128.42) (  -0.83,-132.46)  461.81                80