Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 7.  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,-138.82)  389.67                80
 12/09/2017   06:19:56   (   0.14,-135.42) (   0.46,-133.83)  179.95                80
 12/10/2017   18:38:46   (  -0.13,-135.39) (   0.53,-138.40)  342.38                80
 12/11/2017   18:20:45   (  -0.13,-135.40) (  -0.58,-133.40)  227.68                80
 12/13/2017   06:39:45   (   0.12,-135.45) (  -0.42,-138.00)  290.58                80
 12/14/2017   06:16:24   (   0.13,-135.45) (   0.69,-133.01)  278.59                80
 12/15/2017   18:35:13   (  -0.12,-135.41) (   0.37,-137.56)  245.11                80
 12/16/2017   18:17:13   (  -0.12,-135.42) (  -0.74,-132.57)  324.31                80
 12/18/2017   06:36:12   (   0.11,-135.46) (  -0.25,-137.17)  194.46                80
 12/19/2017   06:12:52   (   0.11,-135.45) (   0.87,-132.18)  374.03                80
 12/20/2017   18:31:41   (  -0.10,-135.40) (   0.20,-136.73)  151.38                80