Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 18.  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)
 06/19/2018   18:44:31   (  -0.17,-134.78) (   0.68,-138.48)  421.66                80
 06/20/2018   18:21:12   (  -0.18,-134.83) (  -0.47,-133.49)  151.91                80
 06/22/2018   06:42:51   (   0.16,-134.89) (  -0.52,-138.09)  364.31                80
 06/23/2018   06:19:30   (   0.18,-134.93) (   0.57,-133.10)  209.15                80
 06/24/2018   18:41:02   (  -0.16,-135.00) (   0.42,-137.66)  303.25                80
 06/25/2018   18:17:41   (  -0.17,-135.04) (  -0.68,-132.66)  269.72                80
 06/27/2018   06:39:21   (   0.15,-135.09) (  -0.32,-137.27)  247.57                80
 06/28/2018   06:16:00   (   0.17,-135.13) (   0.78,-132.27)  325.07                80
 06/29/2018   18:37:31   (  -0.15,-135.18) (   0.21,-136.84)  188.35                80
 06/30/2018   18:14:12   (  -0.18,-135.21) (  -0.95,-131.85)  383.82                80
 07/02/2018   06:35:50   (   0.16,-135.26) (  -0.10,-136.44)  134.46                80