Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 22.  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)
 05/24/2018   06:40:34   (   0.16,-135.19) (  -0.47,-138.11)  332.18                80
 05/25/2018   06:22:33   (   0.17,-135.17) (   0.62,-133.11)  234.17                80
 05/26/2018   18:41:25   (  -0.16,-135.15) (   0.37,-137.68)  287.26                80
 05/27/2018   18:18:04   (  -0.17,-135.12) (  -0.71,-132.68)  278.66                80
 05/29/2018   06:39:44   (   0.17,-135.05) (  -0.31,-137.27)  252.93                80
 05/30/2018   06:19:03   (   0.17,-135.02) (   0.78,-132.27)  312.68                80
 05/31/2018   18:37:54   (  -0.17,-134.99) (   0.21,-136.84)  209.81                80
 06/01/2018   18:14:34   (  -0.18,-134.96) (  -0.87,-131.84)  355.27                80
 06/03/2018   06:36:12   (   0.17,-134.88) (  -0.20,-136.43)  177.45                80
 06/04/2018   06:12:53   (   0.18,-134.84) (   0.95,-131.44)  387.45                80
 06/05/2018   18:34:23   (  -0.18,-134.81) (   0.11,-135.99)  135.90                80