Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 12 16.  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)
 12/18/2018   01:19:38   (   0.16,-128.56) (  -0.70,-132.15)  410.60                80
 12/19/2018   01:05:22   (   0.15,-128.56) (  -0.05,-129.32)   87.79                80
 12/20/2018   00:56:28   (   0.14,-128.56) (   0.65,-126.51)  234.94                80
 12/22/2018   13:14:55   (  -0.14,-128.65) (   0.52,-131.51)  326.17                80
 12/23/2018   13:03:20   (  -0.14,-128.65) (  -0.15,-128.68)    4.29                80
 12/24/2018   12:54:24   (  -0.13,-128.64) (  -0.75,-125.84)  318.19                80
 12/27/2018   01:15:44   (   0.14,-128.50) (  -0.42,-130.90)  274.36                80
 12/28/2018   01:01:29   (   0.13,-128.48) (   0.23,-128.07)   47.13                80
 12/29/2018   00:49:53   (   0.13,-128.47) (   0.89,-125.24)  368.59                80