Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2018   19:14:19   (  -0.12,-135.03) (  -0.89,-131.38)  415.20                80
 06/26/2018   07:38:23   (   0.10,-135.04) (  -0.24,-136.56)  173.99                80
 06/28/2018   07:23:33   (   0.11,-135.10) (   0.45,-133.62)  169.02                80
 06/28/2018   19:47:28   (  -0.08,-135.13) (   0.69,-138.77)  413.67                80
 06/30/2018   19:35:17   (  -0.09,-135.19) (   0.06,-135.82)   71.36                80
 07/02/2018   19:20:27   (  -0.11,-135.25) (  -0.63,-132.88)  270.50                80
 07/03/2018   07:44:30   (   0.08,-135.25) (  -0.54,-138.05)  319.07                80
 07/05/2018   07:29:40   (   0.09,-135.30) (   0.16,-135.11)   22.41                80
 07/07/2018   07:17:29   (   0.10,-135.35) (   0.79,-132.16)  363.05                80
 07/07/2018   19:41:24   (  -0.07,-135.37) (   0.35,-137.31)  220.19                80