Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 6 23.  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)
 06/25/2017   12:31:47   (  -0.17,-135.44) (   0.54,-138.57)  356.52                80
 06/26/2017   12:20:19   (  -0.16,-135.45) (  -0.10,-135.78)   37.77                80
 06/27/2017   12:11:32   (  -0.16,-135.45) (  -0.75,-132.99)  281.01                80
 06/30/2017   00:30:26   (   0.18,-135.47) (  -0.45,-138.12)  302.56                80
 07/01/2017   00:21:38   (   0.18,-135.47) (   0.19,-135.33)   16.36                80
 07/02/2017   00:10:12   (   0.18,-135.47) (   0.88,-132.55)  334.63                80
 07/04/2017   12:29:05   (  -0.20,-135.45) (   0.31,-137.68)  254.32                80
 07/05/2017   12:20:18   (  -0.20,-135.45) (  -0.35,-134.89)   63.66                80
 07/06/2017   12:08:50   (  -0.20,-135.44) (  -0.94,-132.09)  381.43                80