Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/26/2017   19:16:00   (  -0.29,-135.43) (  -1.16,-131.26)  473.88                80
 09/27/2017   07:37:23   (   0.30,-135.40) (   0.06,-136.45)  119.50                80
 09/29/2017   07:22:32   (   0.29,-135.41) (   0.70,-133.49)  217.54                80
 09/29/2017   19:43:47   (  -0.30,-135.43) (   0.36,-138.66)  366.61                80
 10/01/2017   19:31:34   (  -0.29,-135.43) (  -0.22,-135.69)   30.00                80
 10/03/2017   19:22:02   (  -0.29,-135.43) (  -0.88,-132.74)  306.07                80
 10/04/2017   07:43:26   (   0.29,-135.41) (  -0.21,-137.93)  285.96                80
 10/06/2017   07:28:33   (   0.29,-135.40) (   0.39,-134.97)   49.17                80
 10/08/2017   07:16:20   (   0.29,-135.38) (   1.01,-132.00)  383.59                80
 10/08/2017   19:37:36   (  -0.29,-135.38) (   0.06,-137.17)  202.71                80