Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 28.  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)
 06/29/2018   18:37:31   (  -0.15,-135.16) (   0.22,-136.83)  190.29                80
 06/30/2018   18:14:12   (  -0.17,-135.19) (  -0.94,-131.85)  381.44                80
 07/02/2018   06:35:50   (   0.15,-135.21) (  -0.11,-136.43)  139.32                80
 07/03/2018   06:12:30   (   0.17,-135.24) (   1.04,-131.45)  432.19                80
 07/04/2018   18:34:01   (  -0.15,-135.29) (  -0.00,-136.01)   80.85                80
 07/05/2018   18:10:40   (  -0.17,-135.32) (  -1.10,-131.01)  490.30                80
 07/07/2018   06:32:20   (   0.14,-135.33) (   0.11,-135.61)   31.55                80
 07/09/2018   18:27:49   (  -0.14,-135.39) (  -0.17,-135.17)   25.02                80
 07/11/2018   06:49:28   (   0.11,-135.39) (  -0.88,-139.76)  498.13                80
 07/12/2018   06:26:08   (   0.13,-135.40) (   0.28,-134.77)   71.60                80