Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 8 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)
 08/23/2017   00:16:32   (  -0.34,-135.03) (   0.23,-132.52)  285.84                80
 08/25/2017   12:37:56   (   0.32,-135.10) (   0.88,-137.62)  286.75                80
 08/26/2017   12:23:47   (   0.33,-135.11) (   0.25,-134.82)   32.64                80
 08/27/2017   12:12:19   (   0.33,-135.11) (  -0.39,-132.03)  351.79                80
 08/30/2017   00:34:01   (  -0.31,-135.05) (  -0.78,-137.19)  244.58                80
 08/31/2017   00:25:12   (  -0.31,-135.05) (  -0.14,-134.40)   74.43                80
 09/01/2017   00:13:44   (  -0.31,-135.04) (   0.51,-131.60)  393.31                80
 09/02/2017   12:43:56   (   0.28,-135.11) (   1.27,-139.49)  499.77                80
 09/03/2017   12:35:08   (   0.28,-135.10) (   0.63,-136.70)  181.65                80
 09/04/2017   12:20:59   (   0.29,-135.09) (  -0.00,-133.90)  136.39                80