Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 1 8.  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)
 01/09/2018   00:23:32   (   0.08,-134.91) (   1.00,-130.82)  466.26                80
 01/10/2018   12:56:21   (  -0.08,-134.88) (   0.82,-138.68)  434.50                80
 01/11/2018   12:44:50   (  -0.08,-134.85) (   0.16,-135.88)  118.17                80
 01/12/2018   12:36:00   (  -0.07,-134.81) (  -0.49,-133.08)  197.99                80
 01/15/2018   00:57:32   (   0.07,-134.68) (  -0.74,-138.19)  400.30                80
 01/16/2018   00:46:01   (   0.06,-134.63) (  -0.13,-135.37)   84.69                80
 01/17/2018   00:31:51   (   0.06,-134.59) (   0.55,-132.57)  230.84                80
 01/19/2018   12:53:08   (  -0.05,-134.49) (   0.69,-137.62)  358.00                80
 01/20/2018   12:41:38   (  -0.05,-134.44) (   0.03,-134.82)   42.91                80
 01/21/2018   12:32:47   (  -0.05,-134.39) (  -0.63,-132.01)  272.02                80