Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 24.  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)
 06/25/2018   18:17:41   (  -0.17,-135.03) (  -0.67,-132.66)  269.10                80
 06/27/2018   06:39:20   (   0.15,-135.07) (  -0.32,-137.26)  249.89                80
 06/28/2018   06:16:00   (   0.17,-135.10) (   0.77,-132.26)  322.37                80
 06/29/2018   18:37:31   (  -0.15,-135.16) (   0.21,-136.83)  190.45                80
 06/30/2018   18:14:12   (  -0.17,-135.19) (  -0.94,-131.85)  381.40                80
 07/02/2018   06:35:50   (   0.15,-135.22) (  -0.11,-136.44)  138.56                80
 07/03/2018   06:12:31   (   0.18,-135.25) (   1.05,-131.45)  433.05                80
 07/04/2018   18:34:01   (  -0.15,-135.30) (  -0.00,-136.01)   80.48                80
 07/05/2018   18:10:41   (  -0.17,-135.32) (  -1.16,-131.02)  490.78                80
 07/07/2018   06:32:20   (   0.15,-135.34) (   0.11,-135.61)   30.21                80