Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 9 20.  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   19:28:00   (  -0.31,-135.47) (  -0.63,-134.14)  152.37                80
 09/22/2016   07:49:24   (   0.32,-135.44) (  -0.51,-139.33)  441.97                80
 09/23/2016   19:15:49   (  -0.31,-135.46) (  -1.21,-131.18)  486.48                80
 09/24/2016   07:37:14   (   0.32,-135.42) (   0.14,-136.38)  108.09                80
 09/26/2016   07:22:24   (   0.31,-135.40) (   0.76,-133.43)  225.34                80
 09/26/2016   19:43:40   (  -0.32,-135.42) (   0.33,-138.59)  359.24                80
 09/28/2016   19:31:30   (  -0.32,-135.40) (  -0.27,-135.63)   26.16                80
 09/30/2016   19:22:00   (  -0.32,-135.38) (  -0.86,-132.68)  306.40                80
 10/01/2016   07:43:25   (   0.32,-135.35) (  -0.22,-137.88)  287.33                80
 10/03/2016   07:28:36   (   0.32,-135.32) (   0.41,-134.93)   44.39                80