Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 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)
 05/11/2018   13:07:28   (  -0.01,-135.44) (   0.50,-137.54)  241.21                80
 05/12/2018   12:58:36   (  -0.01,-135.43) (  -0.15,-134.73)   79.02                80
 05/13/2018   12:47:04   (  -0.00,-135.41) (  -0.81,-131.92)  399.03                80
 05/16/2018   01:05:53   (   0.03,-135.39) (  -0.38,-137.02)  186.41                80
 05/17/2018   00:57:01   (   0.03,-135.37) (   0.29,-134.21)  132.92                80
 05/18/2018   00:45:28   (   0.03,-135.35) (   0.97,-131.39)  452.08                80
 05/19/2018   13:15:34   (  -0.05,-135.30) (   0.84,-139.24)  450.15                80
 05/20/2018   13:04:00   (  -0.05,-135.27) (   0.24,-136.42)  131.51                80
 05/21/2018   12:55:08   (  -0.04,-135.24) (  -0.42,-133.60)  187.09                80
 05/24/2018   01:13:56   (   0.06,-135.19) (  -0.78,-138.69)  400.88                80