Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/18/2018   07:29:25   (   0.14,-135.34) (   0.23,-135.05)   33.07                80
 05/20/2018   07:19:54   (   0.15,-135.29) (   0.81,-132.09)  363.59                80
 05/20/2018   19:41:10   (  -0.15,-135.30) (   0.28,-137.25)  221.50                80
 05/22/2018   19:26:20   (  -0.15,-135.26) (  -0.37,-134.30)  108.81                80
 05/23/2018   07:50:24   (   0.14,-135.22) (  -0.77,-139.49)  485.58                80
 05/24/2018   19:14:09   (  -0.16,-135.21) (  -0.96,-131.34)  439.01                80
 05/25/2018   07:38:13   (   0.15,-135.17) (  -0.17,-136.53)  155.42                80
 05/27/2018   07:23:23   (   0.15,-135.12) (   0.49,-133.58)  174.50                80
 05/27/2018   19:47:18   (  -0.14,-135.13) (   0.65,-138.73)  410.54                80
 05/29/2018   19:35:08   (  -0.14,-135.07) (  -0.01,-135.79)   81.41                80
 05/31/2018   19:20:17   (  -0.15,-135.00) (  -0.63,-132.83)  247.14                80