Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 10 9.  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)
 10/09/2018   06:24:12   (   0.30,-135.60) (   0.10,-136.45)   97.31                80
 10/10/2018   06:03:31   (   0.29,-135.60) (   1.22,-131.46)  471.54                80
 10/11/2018   18:19:40   (  -0.30,-135.65) (  -0.24,-136.03)   42.61                80
 10/14/2018   06:20:35   (   0.30,-135.57) (   0.31,-135.63)    6.25                80
 10/16/2018   18:18:42   (  -0.30,-135.60) (  -0.40,-135.19)   46.42                80
 10/18/2018   06:37:38   (   0.31,-135.53) (  -0.65,-139.79)  485.48                80
 10/19/2018   06:14:16   (   0.30,-135.51) (   0.47,-134.79)   82.06                80
 10/20/2018   18:33:05   (  -0.31,-135.53) (   0.55,-139.35)  435.52                80
 10/21/2018   18:15:03   (  -0.30,-135.52) (  -0.57,-134.36)  132.33                80