Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 13.  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)
 06/15/2018   18:24:42   (  -0.18,-134.60) (  -0.25,-134.32)   32.27                80
 06/17/2018   06:46:20   (   0.16,-134.67) (  -0.80,-138.91)  483.26                80
 06/18/2018   06:23:00   (   0.18,-134.72) (   0.35,-133.92)   90.65                80
 06/19/2018   18:44:32   (  -0.17,-134.79) (   0.64,-138.49)  421.17                80
 06/20/2018   18:21:11   (  -0.18,-134.83) (  -0.45,-133.49)  152.55                80
 06/22/2018   06:42:51   (   0.16,-134.90) (  -0.54,-138.09)  363.35                80
 06/23/2018   06:19:31   (   0.18,-134.95) (   0.61,-133.11)  210.27                80
 06/24/2018   18:41:01   (  -0.16,-135.01) (   0.44,-137.66)  302.04                80
 06/25/2018   18:17:42   (  -0.17,-135.05) (  -0.72,-132.68)  271.04                80
 06/27/2018   06:39:20   (   0.16,-135.11) (  -0.33,-137.26)  245.91                80