Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 8 25.  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)
 08/26/2017   12:23:47   (   0.33,-135.10) (   0.24,-134.82)   32.51                80
 08/27/2017   12:12:19   (   0.33,-135.10) (  -0.39,-132.03)  351.43                80
 08/30/2017   00:34:00   (  -0.31,-135.03) (  -0.83,-137.18)  245.83                80
 08/31/2017   00:25:11   (  -0.31,-135.03) (  -0.19,-134.39)   73.00                80
 09/01/2017   00:13:43   (  -0.31,-135.03) (   0.46,-131.59)  391.68                80
 09/03/2017   12:32:27   (   0.28,-135.08) (   0.67,-136.69)  183.35                80
 09/04/2017   12:20:58   (   0.29,-135.07) (   0.04,-133.89)  134.54                80
 09/05/2017   12:09:30   (   0.29,-135.06) (  -0.60,-131.09)  452.26                80
 09/07/2017   00:42:38   (  -0.25,-134.96) (  -1.23,-139.04)  466.89                80
 09/08/2017   00:31:09   (  -0.26,-134.95) (  -0.57,-136.25)  149.02                80