Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2017 11 30.  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)
 12/01/2017   06:43:55   (   0.17,-135.33) (  -0.43,-138.04)  308.88                80
 12/02/2017   06:20:36   (   0.17,-135.34) (   0.66,-133.04)  261.39                80
 12/03/2017   18:39:28   (  -0.16,-135.32) (   0.32,-137.61)  260.45                80
 12/04/2017   18:21:28   (  -0.16,-135.33) (  -0.77,-132.61)  310.08                80
 12/06/2017   06:40:30   (   0.15,-135.39) (  -0.24,-137.21)  206.88                80
 12/07/2017   06:17:10   (   0.15,-135.40) (   0.86,-132.21)  362.58                80
 12/08/2017   18:36:02   (  -0.14,-135.36) (   0.18,-136.77)  160.85                80
 12/09/2017   18:18:02   (  -0.14,-135.37) (  -0.91,-131.77)  409.17                80
 12/11/2017   06:37:03   (   0.13,-135.43) (  -0.09,-136.37)  107.70                80
 12/12/2017   06:13:45   (   0.14,-135.43) (   1.06,-131.39)  461.43                80
 12/13/2017   18:32:36   (  -0.13,-135.39) (  -0.03,-135.95)   63.22                80