Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 7 26.  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)
 07/27/2017   00:22:20   (   0.29,-134.90) (   0.17,-135.41)   58.97                80
 07/28/2017   00:13:32   (   0.29,-134.86) (   0.83,-132.63)  255.70                80
 07/30/2017   12:34:58   (  -0.30,-134.76) (   0.40,-137.72)  337.52                80
 07/31/2017   12:23:31   (  -0.30,-134.72) (  -0.28,-134.93)   23.56                80
 08/01/2017   12:09:22   (  -0.30,-134.68) (  -0.90,-132.13)  290.69                80
 08/04/2017   00:31:03   (   0.31,-134.56) (  -0.29,-137.29)  311.29                80
 08/05/2017   00:22:15   (   0.32,-134.51) (   0.32,-134.49)    2.25                80
 08/06/2017   00:10:47   (   0.32,-134.46) (   0.98,-131.71)  315.68                80
 08/08/2017   12:32:11   (  -0.33,-134.34) (   0.23,-136.79)  278.90                80
 08/09/2017   12:18:03   (  -0.33,-134.29) (  -0.39,-133.99)   33.97                80