Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 6 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2018   06:18:18   (   0.17,-135.00) (   0.25,-134.73)   31.06                80
 06/26/2018   18:39:46   (  -0.15,-135.07) (   0.80,-139.28)  481.19                80
 06/27/2018   18:16:25   (  -0.17,-135.10) (  -0.36,-134.30)   91.13                80
 06/29/2018   06:38:03   (   0.15,-135.13) (  -0.69,-138.89)  428.70                80
 06/30/2018   06:14:42   (   0.17,-135.16) (   0.47,-133.91)  143.30                80
 07/01/2018   18:36:10   (  -0.15,-135.22) (   0.57,-138.46)  369.82                80
 07/02/2018   18:12:50   (  -0.18,-135.25) (  -0.59,-133.48)  201.86                80
 07/04/2018   06:34:27   (   0.15,-135.27) (  -0.46,-138.07)  318.85                80
 07/05/2018   06:11:06   (   0.17,-135.30) (   0.64,-133.07)  252.57                80
 07/06/2018   18:32:35   (  -0.15,-135.35) (   0.33,-137.65)  261.34                80
 07/07/2018   18:09:14   (  -0.17,-135.37) (  -0.77,-132.65)  309.63                80