Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 8 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)
 08/12/2018   19:14:12   (   0.09,-135.24) (  -0.73,-131.34)  443.81                80
 08/13/2018   07:38:15   (  -0.13,-135.18) (  -0.43,-136.52)  152.11                80
 08/15/2018   07:23:24   (  -0.11,-135.13) (   0.23,-133.57)  177.97                80
 08/15/2018   19:47:19   (   0.15,-135.16) (   0.91,-138.72)  404.02                80
 08/17/2018   19:35:07   (   0.15,-135.10) (   0.32,-135.75)   74.45                80
 08/19/2018   19:20:16   (   0.14,-135.04) (  -0.33,-132.80)  254.60                80
 08/20/2018   07:44:19   (  -0.18,-134.98) (  -0.85,-137.98)  341.73                80
 08/22/2018   07:32:08   (  -0.18,-134.91) (  -0.21,-135.02)   13.52                80
 08/24/2018   07:17:17   (  -0.17,-134.83) (   0.41,-132.07)  314.09                80
 08/24/2018   19:41:12   (   0.21,-134.86) (   0.73,-137.22)  268.70                80