Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 25.  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)
 06/27/2018   06:39:20   (   0.15,-135.07) (  -0.33,-137.26)  250.00                80
 06/28/2018   06:16:01   (   0.17,-135.10) (   0.82,-132.27)  322.22                80
 06/29/2018   18:37:31   (  -0.15,-135.16) (   0.22,-136.83)  190.51                80
 06/30/2018   18:14:12   (  -0.17,-135.19) (  -0.93,-131.85)  381.30                80
 07/02/2018   06:35:50   (   0.15,-135.22) (  -0.12,-136.43)  138.82                80
 07/03/2018   06:12:30   (   0.18,-135.24) (   1.04,-131.45)  432.76                80
 07/04/2018   18:34:01   (  -0.15,-135.30) (   0.01,-136.00)   80.68                80
 07/05/2018   18:10:41   (  -0.17,-135.32) (  -1.15,-131.02)  490.54                80
 07/07/2018   06:32:20   (   0.15,-135.34) (   0.10,-135.61)   30.55                80
 07/09/2018   18:27:49   (  -0.14,-135.40) (  -0.16,-135.17)   25.73                80