Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2018   06:17:59   (   0.24,-135.45) (   0.39,-134.76)   78.68                80
 09/21/2018   18:34:09   (  -0.27,-135.55) (   0.60,-139.33)  431.32                80
 09/22/2018   18:16:07   (  -0.25,-135.57) (  -0.52,-134.34)  140.45                80
 09/24/2018   06:32:24   (   0.28,-135.53) (  -0.48,-138.94)  388.70                80
 09/25/2018   06:14:23   (   0.26,-135.54) (   0.64,-133.95)  182.22                80
 09/26/2018   18:30:32   (  -0.28,-135.62) (   0.35,-138.52)  329.24                80
 09/27/2018   18:12:31   (  -0.27,-135.64) (  -0.77,-133.52)  241.81                80
 09/29/2018   06:28:47   (   0.29,-135.59) (  -0.29,-138.11)  287.98                80
 09/30/2018   06:10:46   (   0.27,-135.59) (   0.83,-133.12)  281.93                80
 10/01/2018   18:26:55   (  -0.29,-135.65) (   0.16,-137.69)  231.73                80
 10/02/2018   18:08:53   (  -0.27,-135.65) (  -0.96,-132.69)  338.17                80