Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 4 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2018   19:25:56   (  -0.10,-135.38) (  -0.36,-134.20)  134.32                80
 04/21/2018   07:47:21   (   0.10,-135.39) (  -0.72,-139.40)  455.02                80
 04/22/2018   19:13:47   (  -0.10,-135.41) (  -1.01,-131.26)  472.53                80
 04/23/2018   07:35:11   (   0.11,-135.42) (  -0.13,-136.44)  116.90                80
 04/25/2018   07:25:42   (   0.11,-135.44) (   0.51,-133.50)  221.05                80
 04/25/2018   19:46:58   (  -0.11,-135.45) (   0.59,-138.66)  365.33                80
 04/27/2018   19:34:49   (  -0.11,-135.47) (  -0.06,-135.71)   27.61                80
 04/29/2018   19:20:00   (  -0.11,-135.49) (  -0.71,-132.77)  309.71                80
 04/30/2018   07:41:23   (   0.12,-135.50) (  -0.43,-137.95)  280.17                80
 05/02/2018   07:31:55   (   0.12,-135.51) (   0.23,-135.01)   56.44                80