Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 29.  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   19:35:18   (  -0.09,-135.19) (   0.01,-135.82)   71.27                80
 07/02/2018   19:20:27   (  -0.11,-135.25) (  -0.62,-132.87)  270.33                80
 07/03/2018   07:44:30   (   0.08,-135.24) (  -0.50,-138.06)  320.30                80
 07/05/2018   07:29:39   (   0.09,-135.29) (   0.14,-135.11)   20.76                80
 07/07/2018   07:17:29   (   0.09,-135.33) (   0.78,-132.15)  361.20                80
 07/07/2018   19:41:23   (  -0.06,-135.36) (   0.35,-137.30)  221.12                80
 07/09/2018   19:26:32   (  -0.07,-135.39) (  -0.29,-134.35)  118.26                80
 07/10/2018   07:50:36   (   0.04,-135.38) (  -0.82,-139.54)  472.87                80
 07/11/2018   19:14:21   (  -0.08,-135.42) (  -0.93,-131.40)  456.73                80
 07/12/2018   07:38:25   (   0.05,-135.40) (  -0.18,-136.59)  134.64                80