Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2018   07:44:29   (   0.08,-135.24) (  -0.55,-138.05)  320.39                80
 07/05/2018   07:29:40   (   0.09,-135.28) (   0.14,-135.11)   20.71                80
 07/07/2018   07:17:29   (   0.09,-135.33) (   0.77,-132.15)  361.11                80
 07/07/2018   19:41:23   (  -0.06,-135.36) (   0.36,-137.30)  220.68                80
 07/09/2018   19:26:32   (  -0.07,-135.40) (  -0.26,-134.35)  118.69                80
 07/10/2018   07:50:36   (   0.04,-135.38) (  -0.85,-139.54)  473.10                80
 07/11/2018   19:14:22   (  -0.08,-135.42) (  -0.95,-131.41)  457.04                80
 07/12/2018   07:38:25   (   0.04,-135.40) (  -0.22,-136.58)  134.92                80
 07/14/2018   07:23:34   (   0.06,-135.41) (   0.41,-133.63)  202.48                80
 07/14/2018   19:47:30   (  -0.03,-135.45) (   0.67,-138.79)  379.98                80
 07/16/2018   19:35:19   (  -0.04,-135.46) (   0.05,-135.83)   42.94                80