Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 9 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2016   19:27:59   (  -0.31,-135.48) (  -0.59,-134.13)  152.82                80
 09/22/2016   07:49:23   (   0.32,-135.44) (  -0.52,-139.32)  441.83                80
 09/23/2016   19:15:48   (  -0.31,-135.46) (  -1.23,-131.18)  487.32                80
 09/24/2016   07:37:12   (   0.32,-135.42) (   0.11,-136.37)  107.54                80
 09/26/2016   07:22:21   (   0.31,-135.40) (   0.75,-133.41)  226.42                80
 09/26/2016   19:43:37   (  -0.32,-135.43) (   0.33,-138.58)  357.53                80
 09/28/2016   19:31:25   (  -0.32,-135.41) (  -0.26,-135.61)   23.74                80
 09/30/2016   19:21:54   (  -0.32,-135.38) (  -0.91,-132.66)  309.78                80
 10/01/2016   07:43:18   (   0.32,-135.35) (  -0.20,-137.85)  284.19                80
 10/03/2016   07:28:26   (   0.32,-135.32) (   0.40,-134.89)   48.63                80