Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 6 22.  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)
 06/23/2017   00:12:51   (   0.14,-135.46) (   0.63,-133.43)  231.90                80
 06/25/2017   12:31:46   (  -0.17,-135.44) (   0.58,-138.56)  356.51                80
 06/26/2017   12:20:18   (  -0.16,-135.45) (  -0.06,-135.77)   37.85                80
 06/27/2017   12:11:31   (  -0.16,-135.45) (  -0.70,-132.98)  281.04                80
 06/30/2017   00:30:26   (   0.18,-135.47) (  -0.44,-138.12)  302.57                80
 07/01/2017   00:21:38   (   0.18,-135.47) (   0.20,-135.33)   16.12                80
 07/02/2017   00:10:11   (   0.18,-135.48) (   0.84,-132.54)  334.60                80
 07/04/2017   12:29:06   (  -0.20,-135.45) (   0.30,-137.68)  254.32                80
 07/05/2017   12:20:18   (  -0.20,-135.45) (  -0.35,-134.89)   63.69                80
 07/06/2017   12:08:50   (  -0.20,-135.44) (  -0.95,-132.09)  381.41                80