Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 6.  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)
 06/08/2018   06:32:41   (   0.18,-134.62) (  -0.04,-135.58)  110.00                80
 06/09/2018   06:09:21   (   0.19,-134.57) (   1.05,-130.58)  453.97                80
 06/10/2018   18:30:52   (  -0.17,-134.55) (  -0.06,-135.15)   68.71                80
 06/11/2018   18:07:31   (  -0.18,-134.49) (  -1.15,-130.15)  494.55                80
 06/13/2018   06:29:10   (   0.17,-134.36) (   0.09,-134.74)   43.12                80
 06/15/2018   18:24:41   (  -0.18,-134.26) (  -0.19,-134.31)    5.05                80
 06/18/2018   06:22:58   (   0.18,-134.06) (   0.22,-133.90)   18.64                80
 06/20/2018   18:21:09   (  -0.18,-133.95) (  -0.32,-133.46)   56.26                80