Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 8 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)
 08/27/2017   12:12:19   (   0.33,-135.10) (  -0.40,-132.03)  351.45                80
 08/30/2017   00:34:00   (  -0.31,-135.03) (  -0.83,-137.18)  246.06                80
 08/31/2017   00:25:11   (  -0.31,-135.03) (  -0.18,-134.39)   72.70                80
 09/01/2017   00:13:43   (  -0.31,-135.02) (   0.46,-131.59)  391.33                80
 09/03/2017   12:32:27   (   0.28,-135.08) (   0.67,-136.69)  183.69                80
 09/04/2017   12:20:58   (   0.29,-135.07) (   0.03,-133.89)  134.13                80
 09/05/2017   12:09:30   (   0.29,-135.06) (  -0.61,-131.10)  451.79                80
 09/07/2017   00:42:38   (  -0.25,-134.95) (  -1.22,-139.04)  467.55                80
 09/08/2017   00:31:10   (  -0.26,-134.94) (  -0.57,-136.25)  149.74                80
 09/09/2017   00:22:21   (  -0.26,-134.93) (   0.09,-133.46)  167.85                80