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) (   0.20,-135.42)   59.05                80
 07/28/2017   00:13:32   (   0.29,-134.86) (   0.80,-132.62)  255.72                80
 07/30/2017   12:34:59   (  -0.30,-134.76) (   0.37,-137.72)  337.50                80
 07/31/2017   12:23:30   (  -0.30,-134.72) (  -0.25,-134.92)   23.28                80
 08/01/2017   12:09:22   (  -0.30,-134.68) (  -0.87,-132.13)  290.77                80
 08/04/2017   00:31:03   (   0.31,-134.56) (  -0.32,-137.29)  311.06                80
 08/05/2017   00:22:15   (   0.32,-134.51) (   0.34,-134.50)    3.64                80
 08/06/2017   00:10:47   (   0.32,-134.47) (   0.95,-131.70)  315.93                80
 08/08/2017   12:32:11   (  -0.33,-134.35) (   0.21,-136.79)  278.66                80