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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/09/2018   07:19:58   (   0.28,-135.16) (   0.90,-132.15)  340.90                80
 09/09/2018   19:38:33   (  -0.30,-135.24) (   0.16,-137.32)  237.27                80
 09/11/2018   19:29:01   (  -0.30,-135.31) (  -0.47,-134.36)  106.90                80
 09/12/2018   07:50:26   (   0.32,-135.27) (  -0.57,-139.57)  487.97                80
 09/13/2018   19:16:49   (  -0.29,-135.38) (  -1.11,-131.41)  450.73                80
 09/14/2018   07:38:14   (   0.32,-135.34) (   0.07,-136.61)  144.42                80
 09/16/2018   07:23:21   (   0.30,-135.39) (   0.65,-133.64)  198.68                80
 09/16/2018   19:44:37   (  -0.32,-135.46) (   0.41,-138.81)  381.02                80
 09/18/2018   19:32:25   (  -0.32,-135.51) (  -0.23,-135.85)   38.53                80
 09/20/2018   19:22:53   (  -0.31,-135.56) (  -0.87,-132.90)  303.37                80
 09/21/2018   07:44:17   (   0.33,-135.53) (  -0.22,-138.09)  290.83                80