Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 8 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)
 08/02/2018   18:33:32   (  -0.04,-135.45) (   0.05,-135.97)   58.75                80
 08/05/2018   06:31:50   (   0.02,-135.37) (  -0.02,-135.56)   22.30                80
 08/07/2018   18:27:20   (  -0.01,-135.36) (  -0.10,-135.13)   27.02                80
 08/10/2018   06:25:38   (   0.00,-135.25) (   0.12,-134.72)   60.38                80
 08/11/2018   18:47:07   (   0.04,-135.25) (   0.92,-139.27)  457.67                80
 08/12/2018   18:23:46   (   0.00,-135.22) (  -0.19,-134.27)  107.73                80
 08/14/2018   06:45:25   (  -0.05,-135.13) (  -0.89,-138.86)  425.02                80
 08/15/2018   06:22:05   (  -0.01,-135.10) (   0.28,-133.87)  140.26                80