Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 19.  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)
 05/20/2018   06:26:04   (   0.16,-135.29) (   0.47,-133.95)  153.40                80
 05/21/2018   18:44:54   (  -0.16,-135.28) (   0.57,-138.51)  368.05                80
 05/22/2018   18:21:35   (  -0.17,-135.26) (  -0.58,-133.52)  198.38                80
 05/24/2018   06:40:34   (   0.16,-135.20) (  -0.45,-138.12)  331.72                80
 05/25/2018   06:22:34   (   0.17,-135.17) (   0.63,-133.11)  234.76                80
 05/26/2018   18:41:24   (  -0.16,-135.16) (   0.41,-137.67)  286.99                80
 05/27/2018   18:18:05   (  -0.17,-135.13) (  -0.73,-132.68)  279.01                80
 05/29/2018   06:39:43   (   0.16,-135.06) (  -0.35,-137.27)  251.94                80
 05/30/2018   06:19:03   (   0.17,-135.03) (   0.80,-132.28)  313.80                80
 05/31/2018   18:37:54   (  -0.17,-135.00) (   0.25,-136.83)  209.00                80
 06/01/2018   18:14:34   (  -0.18,-134.97) (  -0.90,-131.85)  356.17                80