Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2017 12 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2017   06:20:36   (   0.17,-135.34) (   0.71,-133.05)  261.30                80
 12/03/2017   18:39:28   (  -0.16,-135.32) (   0.34,-137.61)  259.83                80
 12/04/2017   18:21:28   (  -0.16,-135.34) (  -0.76,-132.61)  310.79                80
 12/06/2017   06:40:29   (   0.15,-135.40) (  -0.25,-137.21)  206.53                80
 12/07/2017   06:17:10   (   0.15,-135.40) (   0.84,-132.21)  363.03                80
 12/08/2017   18:36:01   (  -0.14,-135.37) (   0.19,-136.77)  159.72                80
 12/09/2017   18:18:03   (  -0.14,-135.38) (  -0.96,-131.78)  410.41                80
 12/11/2017   06:37:03   (   0.13,-135.44) (  -0.11,-136.37)  106.84                80
 12/12/2017   06:13:45   (   0.14,-135.44) (   1.05,-131.39)  462.42                80
 12/13/2017   18:32:36   (  -0.12,-135.40) (  -0.02,-135.94)   61.47                80