Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 10 21.  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)
 10/21/2018   18:15:03   (  -0.30,-135.49) (  -0.58,-134.36)  128.93                80
 10/23/2018   06:33:59   (   0.31,-135.40) (  -0.48,-138.95)  404.84                80
 10/24/2018   06:10:38   (   0.31,-135.37) (   0.64,-133.96)  161.58                80
 10/25/2018   18:29:26   (  -0.31,-135.38) (   0.37,-138.52)  357.29                80
 10/26/2018   18:11:24   (  -0.31,-135.36) (  -0.69,-133.51)  209.30                80
 10/28/2018   06:30:21   (   0.31,-135.26) (  -0.30,-138.12)  325.30                80
 10/29/2018   06:06:59   (   0.30,-135.22) (   0.76,-133.11)  239.97                80
 10/30/2018   18:25:47   (  -0.30,-135.21) (   0.25,-137.68)  281.18                80
 10/31/2018   18:07:45   (  -0.30,-135.17) (  -0.82,-132.67)  284.39                80
 11/02/2018   06:26:42   (   0.30,-135.07) (  -0.18,-137.27)  250.65                80
 11/03/2018   06:03:19   (   0.29,-135.03) (   0.89,-132.27)  313.93                80