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   19:14:13   (   0.09,-135.24) (  -0.77,-131.35)  443.75                80
 08/13/2018   07:38:16   (  -0.13,-135.18) (  -0.40,-136.53)  152.16                80
 08/15/2018   07:23:24   (  -0.11,-135.13) (   0.19,-133.56)  177.85                80
 08/15/2018   19:47:20   (   0.15,-135.16) (   0.88,-138.72)  404.21                80
 08/17/2018   19:35:08   (   0.15,-135.10) (   0.30,-135.76)   74.68                80
 08/19/2018   19:20:17   (   0.14,-135.04) (  -0.33,-132.80)  254.18                80
 08/20/2018   07:44:21   (  -0.18,-134.98) (  -0.79,-137.99)  342.17                80
 08/22/2018   07:31:37   (  -0.18,-134.91) (  -0.18,-135.04)   14.40                47
 08/24/2018   07:17:19   (  -0.17,-134.83) (   0.42,-132.08)  313.30                80
 08/24/2018   19:41:13   (   0.21,-134.86) (   0.72,-137.23)  269.56                80