Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2018   19:35:17   (  -0.09,-135.19) (   0.06,-135.81)   71.09                80
 07/02/2018   19:20:27   (  -0.10,-135.25) (  -0.64,-132.87)  270.50                80
 07/03/2018   07:44:30   (   0.08,-135.24) (  -0.54,-138.05)  320.29                80
 07/05/2018   07:29:39   (   0.09,-135.28) (   0.10,-135.10)   20.92                80
 07/07/2018   07:17:28   (   0.09,-135.33) (   0.75,-132.15)  361.30                80
 07/07/2018   19:41:23   (  -0.06,-135.36) (   0.32,-137.31)  220.87                80
 07/09/2018   19:26:32   (  -0.07,-135.39) (  -0.27,-134.34)  118.64                80
 07/10/2018   07:50:35   (   0.04,-135.38) (  -0.84,-139.53)  472.66                80
 07/11/2018   19:14:21   (  -0.08,-135.42) (  -0.93,-131.39)  457.17                80
 07/12/2018   07:38:24   (   0.05,-135.40) (  -0.18,-136.58)  134.34                80