Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 12 20.  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) (   0.52,-131.51)  325.07                80
 12/23/2018   13:03:20   (  -0.14,-128.66) (  -0.14,-128.68)    2.75                80
 12/24/2018   12:54:24   (  -0.13,-128.65) (  -0.81,-125.85)  319.73                80
 12/27/2018   01:15:44   (   0.14,-128.51) (  -0.42,-130.90)  272.59                80
 12/28/2018   01:01:29   (   0.13,-128.50) (   0.24,-128.07)   49.15                80
 12/29/2018   00:49:53   (   0.13,-128.49) (   0.89,-125.24)  370.87                80
 12/31/2018   13:10:59   (  -0.14,-128.57) (   0.25,-130.24)  191.31                80
 01/01/2019   13:02:04   (  -0.13,-128.55) (  -0.42,-127.41)  130.49                80
 01/02/2019   12:50:27   (  -0.12,-128.54) (  -1.03,-124.58)  452.17                80