Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 10 10.  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)
 10/12/2018   13:34:31   (   0.04,-135.66) (   0.77,-138.93)  372.53                80
 10/13/2018   13:22:56   (   0.05,-135.65) (   0.17,-136.09)   50.89                80
 10/14/2018   13:14:01   (   0.06,-135.64) (  -0.49,-133.27)  270.61                80
 10/17/2018   01:32:40   (  -0.02,-135.51) (  -0.69,-138.32)  321.00                80
 10/18/2018   01:23:46   (  -0.02,-135.50) (  -0.01,-135.50)    1.47                80
 10/19/2018   01:12:10   (  -0.03,-135.49) (   0.61,-132.67)  321.37                80
 10/21/2018   13:30:45   (  -0.01,-135.54) (   0.49,-137.72)  248.38                80
 10/22/2018   13:21:51   (  -0.00,-135.52) (  -0.17,-134.89)   72.14                80
 10/23/2018   13:10:15   (   0.01,-135.50) (  -0.77,-132.06)  392.54                80