Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/24/2017   19:28:12   (  -0.29,-135.41) (  -0.56,-134.22)  135.87                80
 09/25/2017   07:49:36   (   0.30,-135.39) (  -0.54,-139.41)  457.13                80
 09/26/2017   19:16:00   (  -0.29,-135.43) (  -1.19,-131.26)  473.96                80
 09/27/2017   07:37:24   (   0.30,-135.40) (   0.08,-136.45)  119.39                80
 09/29/2017   07:22:32   (   0.29,-135.41) (   0.71,-133.50)  217.74                80
 09/29/2017   19:43:47   (  -0.30,-135.43) (   0.41,-138.65)  366.39                80
 10/01/2017   19:31:35   (  -0.29,-135.43) (  -0.23,-135.69)   29.73                80
 10/03/2017   19:22:03   (  -0.29,-135.43) (  -0.86,-132.74)  306.32                80
 10/04/2017   07:43:27   (   0.29,-135.42) (  -0.23,-137.93)  285.71                80
 10/06/2017   07:28:34   (   0.29,-135.40) (   0.36,-134.96)   49.49                80