Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 9.  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   13:07:29   (  -0.01,-135.44) (   0.48,-137.55)  241.25                80
 05/12/2018   12:58:36   (  -0.01,-135.43) (  -0.17,-134.74)   78.91                80
 05/13/2018   12:47:04   (  -0.00,-135.41) (  -0.83,-131.92)  398.88                80
 05/16/2018   01:05:54   (   0.03,-135.39) (  -0.36,-137.02)  186.77                80
 05/17/2018   00:57:01   (   0.03,-135.37) (   0.31,-134.21)  132.50                80
 05/18/2018   00:45:28   (   0.03,-135.35) (   0.92,-131.39)  451.60                80
 05/19/2018   13:15:33   (  -0.05,-135.29) (   0.89,-139.23)  450.58                80
 05/20/2018   13:04:01   (  -0.05,-135.27) (   0.23,-136.42)  131.98                80
 05/21/2018   12:55:08   (  -0.04,-135.24) (  -0.43,-133.61)  186.56                80