Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/12/2018   07:23:27   (   0.14,-134.42) (   0.29,-133.57)   96.57                80
 06/12/2018   19:47:23   (  -0.12,-134.44) (   0.78,-138.73)  487.23                80
 06/14/2018   07:11:17   (   0.14,-134.32) (   0.96,-130.62)  420.40                80
 06/14/2018   19:35:12   (  -0.13,-134.33) (   0.18,-135.77)  163.58                80
 06/16/2018   19:20:21   (  -0.14,-134.22) (  -0.43,-132.82)  159.32                80
 06/17/2018   07:44:25   (   0.12,-134.14) (  -0.70,-138.00)  439.28                80
 06/18/2018   19:08:10   (  -0.15,-134.10) (  -1.04,-129.86)  481.91                80
 06/19/2018   07:32:14   (   0.13,-134.02) (  -0.08,-135.05)  116.70                80
 06/21/2018   07:17:23   (   0.14,-133.90) (   0.53,-132.09)  205.74                80
 06/21/2018   19:41:17   (  -0.11,-133.91) (   0.61,-137.24)  378.40                80
 06/23/2018   19:29:07   (  -0.12,-133.79) (  -0.00,-134.28)   56.32                80
 06/25/2018   19:14:16   (  -0.12,-133.66) (  -0.62,-131.33)  265.18                80