Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 4.  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)
 12/05/2017   18:42:18   (  -0.15,-135.35) (   0.71,-139.23)  442.04                80
 12/06/2017   18:24:18   (  -0.15,-135.36) (  -0.43,-134.24)  128.68                80
 12/08/2017   06:43:16   (   0.14,-135.41) (  -0.60,-138.83)  388.91                80
 12/09/2017   06:19:54   (   0.14,-135.42) (   0.48,-133.83)  180.94                80
 12/10/2017   18:38:44   (  -0.13,-135.39) (   0.54,-138.39)  341.32                80
 12/11/2017   18:20:43   (  -0.13,-135.40) (  -0.60,-133.40)  229.04                80
 12/13/2017   06:39:42   (   0.12,-135.46) (  -0.42,-137.99)  288.43                80
 12/14/2017   06:16:20   (   0.13,-135.46) (   0.66,-132.99)  281.01                80
 12/15/2017   18:35:09   (  -0.12,-135.42) (   0.35,-137.55)  242.67                80
 12/16/2017   18:17:09   (  -0.12,-135.42) (  -0.79,-132.56)  327.05                80
 12/18/2017   06:36:06   (   0.11,-135.47) (  -0.28,-137.14)  190.88                80