Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 4 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/27/2018   19:34:49   (  -0.11,-135.47) (  -0.08,-135.71)   27.14                80
 04/29/2018   19:19:59   (  -0.12,-135.49) (  -0.67,-132.76)  309.97                80
 04/30/2018   07:41:23   (   0.12,-135.49) (  -0.41,-137.96)  281.04                80
 05/02/2018   07:31:54   (   0.12,-135.50) (   0.25,-135.02)   55.32                80
 05/04/2018   07:19:45   (   0.13,-135.50) (   0.85,-132.06)  390.87                80
 05/04/2018   19:41:00   (  -0.13,-135.51) (   0.26,-137.22)  194.92                80
 05/06/2018   19:26:11   (  -0.13,-135.51) (  -0.39,-134.28)  139.99                80
 05/07/2018   07:50:15   (   0.13,-135.50) (  -0.74,-139.46)  451.61                80
 05/08/2018   19:14:02   (  -0.14,-135.50) (  -1.05,-131.33)  474.40                80
 05/09/2018   07:35:26   (   0.14,-135.49) (  -0.08,-136.52)  117.27                80