Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 17.  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)
 06/18/2018   06:23:01   (   0.18,-134.71) (   0.36,-133.92)   90.27                80
 06/19/2018   18:44:32   (  -0.17,-134.78) (   0.64,-138.49)  421.67                80
 06/20/2018   18:21:11   (  -0.18,-134.83) (  -0.46,-133.49)  151.95                80
 06/22/2018   06:42:51   (   0.16,-134.89) (  -0.53,-138.09)  364.10                80
 06/23/2018   06:19:30   (   0.18,-134.94) (   0.56,-133.09)  209.41                80
 06/24/2018   18:41:02   (  -0.16,-135.00) (   0.43,-137.66)  303.05                80
 06/25/2018   18:17:42   (  -0.17,-135.04) (  -0.72,-132.68)  269.95                80
 06/27/2018   06:39:20   (   0.15,-135.09) (  -0.33,-137.26)  247.16                80
 06/28/2018   06:16:01   (   0.17,-135.13) (   0.83,-132.28)  325.52                80
 06/29/2018   18:37:31   (  -0.15,-135.19) (   0.22,-136.83)  187.94                80
 06/30/2018   18:14:12   (  -0.18,-135.22) (  -0.94,-131.85)  384.27                80