Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2017   18:38:46   (  -0.13,-135.39) (   0.53,-138.40)  342.97                80
 12/11/2017   18:20:46   (  -0.13,-135.39) (  -0.57,-133.40)  226.84                80
 12/13/2017   06:39:45   (   0.12,-135.44) (  -0.45,-138.00)  291.95                80
 12/14/2017   06:16:25   (   0.13,-135.44) (   0.70,-133.02)  276.93                80
 12/15/2017   18:35:15   (  -0.12,-135.40) (   0.39,-137.56)  247.24                80
 12/16/2017   18:17:15   (  -0.12,-135.40) (  -0.75,-132.58)  321.80                80
 12/18/2017   06:36:15   (   0.11,-135.44) (  -0.30,-137.17)  197.75                80
 12/19/2017   06:12:55   (   0.11,-135.44) (   0.83,-132.19)  370.29                80
 12/20/2017   18:31:45   (  -0.10,-135.38) (   0.23,-136.74)  155.75                80
 12/21/2017   18:13:46   (  -0.10,-135.38) (  -0.89,-131.75)  412.45                80
 12/23/2017   06:32:46   (   0.09,-135.41) (  -0.11,-136.36)  107.78                80