Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 11.  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)
 09/12/2018   18:20:40   (  -0.22,-135.34) (  -0.06,-135.98)   72.93                80
 09/15/2018   06:18:56   (   0.23,-135.35) (   0.19,-135.59)   27.37                80
 09/17/2018   18:19:44   (  -0.24,-135.49) (  -0.33,-135.17)   37.22                80
 09/19/2018   06:36:00   (   0.26,-135.46) (  -0.72,-139.76)  490.50                80
 09/20/2018   06:17:59   (   0.24,-135.48) (   0.40,-134.76)   81.52                80
 09/21/2018   18:34:08   (  -0.27,-135.58) (   0.57,-139.33)  428.27                80
 09/22/2018   18:16:06   (  -0.25,-135.60) (  -0.55,-134.34)  143.93                80
 09/24/2018   06:32:23   (   0.28,-135.57) (  -0.49,-138.93)  384.03                80
 09/25/2018   06:14:21   (   0.26,-135.58) (   0.63,-133.94)  187.36                80