Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 14.  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)
 05/15/2018   06:29:33   (   0.14,-135.39) (   0.26,-134.78)   69.64                80
 05/16/2018   18:48:25   (  -0.15,-135.39) (   0.71,-139.35)  450.88                80
 05/17/2018   18:25:04   (  -0.15,-135.37) (  -0.37,-134.35)  115.98                80
 05/19/2018   06:44:04   (   0.15,-135.31) (  -0.67,-138.94)  413.70                80
 05/20/2018   06:26:04   (   0.16,-135.29) (   0.47,-133.95)  152.93                80
 05/21/2018   18:44:54   (  -0.16,-135.28) (   0.57,-138.51)  368.64                80
 05/22/2018   18:21:35   (  -0.16,-135.25) (  -0.58,-133.52)  197.68                80
 05/24/2018   06:40:33   (   0.16,-135.19) (  -0.51,-138.10)  332.60                80
 05/25/2018   06:22:34   (   0.17,-135.17) (   0.63,-133.12)  233.78                80
 05/26/2018   18:41:24   (  -0.16,-135.15) (   0.41,-137.67)  288.07                80
 05/27/2018   18:18:05   (  -0.17,-135.12) (  -0.73,-132.68)  277.83                80