Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/14/2018   07:11:16   (   0.14,-134.32) (   0.93,-130.62)  420.33                80
 06/14/2018   19:35:11   (  -0.13,-134.33) (   0.20,-135.77)  163.66                80
 06/16/2018   19:20:20   (  -0.14,-134.22) (  -0.41,-132.81)  159.28                80
 06/17/2018   07:44:24   (   0.12,-134.14) (  -0.72,-138.00)  439.36                80
 06/18/2018   19:08:10   (  -0.15,-134.10) (  -1.08,-129.87)  481.84                80
 06/19/2018   07:32:13   (   0.13,-134.02) (  -0.11,-135.04)  116.81                80
 06/21/2018   07:17:22   (   0.14,-133.90) (   0.50,-132.09)  205.65                80
 06/21/2018   19:41:18   (  -0.11,-133.91) (   0.57,-137.25)  378.49                80
 06/23/2018   19:29:07   (  -0.12,-133.79) (  -0.04,-134.29)   56.51                80
 06/25/2018   19:14:15   (  -0.12,-133.66) (  -0.59,-131.32)  265.09                80
 06/26/2018   07:38:19   (   0.10,-133.58) (  -0.53,-136.51)  333.75                80