Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 9.  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)
 06/10/2018   18:30:51   (  -0.17,-134.55) (  -0.02,-135.14)   68.30                80
 06/11/2018   18:07:32   (  -0.18,-134.50) (  -1.17,-130.16)  495.14                80
 06/13/2018   06:29:10   (   0.17,-134.37) (   0.11,-134.74)   42.04                80
 06/15/2018   18:27:20   (  -0.17,-134.27) (  -0.15,-134.30)    4.03                80
 06/18/2018   06:22:59   (   0.18,-134.07) (   0.25,-133.90)   20.79                80
 06/20/2018   18:21:09   (  -0.18,-133.97) (  -0.28,-133.45)   58.35                80
 06/22/2018   06:42:47   (   0.16,-133.82) (  -0.77,-138.04)  480.39                80
 06/23/2018   06:19:26   (   0.18,-133.76) (   0.33,-133.04)   81.66                80