Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 10.  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)   96.41                80
 06/12/2018   19:47:23   (  -0.12,-134.44) (   0.78,-138.73)  487.31                80
 06/14/2018   07:11:16   (   0.14,-134.31) (   0.91,-130.61)  420.19                80
 06/14/2018   19:35:12   (  -0.13,-134.33) (   0.17,-135.78)  163.71                80
 06/16/2018   19:20:21   (  -0.14,-134.22) (  -0.46,-132.82)  159.19                80
 06/17/2018   07:44:24   (   0.12,-134.14) (  -0.73,-137.99)  439.51                80
 06/18/2018   19:08:09   (  -0.15,-134.10) (  -1.02,-129.85)  481.79                80
 06/19/2018   07:32:13   (   0.13,-134.01) (  -0.10,-135.04)  116.91                80
 06/21/2018   07:17:22   (   0.14,-133.89) (   0.53,-132.09)  205.59                80
 06/21/2018   19:41:16   (  -0.11,-133.91) (   0.60,-137.24)  378.46                80
 06/23/2018   19:29:06   (  -0.12,-133.78) (  -0.04,-134.28)   56.36                80