Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 6.  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)
 12/08/2017   06:43:16   (   0.14,-135.41) (  -0.65,-138.83)  389.62                80
 12/09/2017   06:19:57   (   0.14,-135.42) (   0.52,-133.84)  180.00                80
 12/10/2017   18:38:46   (  -0.13,-135.39) (   0.54,-138.40)  342.41                80
 12/11/2017   18:20:45   (  -0.13,-135.40) (  -0.57,-133.40)  227.67                80
 12/13/2017   06:39:45   (   0.12,-135.45) (  -0.43,-138.00)  290.47                80
 12/14/2017   06:16:24   (   0.13,-135.45) (   0.68,-133.01)  278.70                80
 12/15/2017   18:35:14   (  -0.12,-135.41) (   0.38,-137.56)  245.09                80
 12/16/2017   18:17:13   (  -0.12,-135.42) (  -0.73,-132.56)  324.36                80
 12/18/2017   06:36:12   (   0.11,-135.46) (  -0.26,-137.17)  194.27                80
 12/19/2017   06:12:52   (   0.11,-135.46) (   0.85,-132.17)  374.21                80
 12/20/2017   18:31:41   (  -0.10,-135.40) (   0.21,-136.73)  151.30                80