Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2017   07:22:32   (   0.29,-135.40) (   0.70,-133.49)  217.42                80
 09/29/2017   19:43:47   (  -0.30,-135.43) (   0.37,-138.66)  366.54                80
 10/01/2017   19:31:36   (  -0.29,-135.43) (  -0.26,-135.70)   30.19                80
 10/03/2017   19:22:03   (  -0.29,-135.43) (  -0.83,-132.73)  305.80                80
 10/04/2017   07:43:26   (   0.30,-135.41) (  -0.26,-137.92)  286.50                80
 10/06/2017   07:28:34   (   0.29,-135.40) (   0.37,-134.97)   48.39                80
 10/08/2017   07:16:22   (   0.29,-135.37) (   1.01,-132.01)  382.50                80
 10/08/2017   19:37:38   (  -0.29,-135.38) (   0.06,-137.17)  203.68                80
 10/10/2017   19:28:05   (  -0.29,-135.35) (  -0.52,-134.21)  129.58                80
 10/11/2017   07:49:29   (   0.29,-135.34) (  -0.57,-139.40)  461.47                80