Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2017   07:49:36   (   0.30,-135.39) (  -0.56,-139.41)  457.17                80
 09/26/2017   19:16:00   (  -0.29,-135.43) (  -1.17,-131.26)  473.82                80
 09/27/2017   07:37:24   (   0.30,-135.40) (   0.06,-136.45)  119.56                80
 09/29/2017   07:22:32   (   0.29,-135.41) (   0.68,-133.49)  217.41                80
 09/29/2017   19:43:48   (  -0.30,-135.43) (   0.38,-138.66)  366.76                80
 10/01/2017   19:31:36   (  -0.29,-135.43) (  -0.24,-135.70)   30.27                80
 10/03/2017   19:22:04   (  -0.29,-135.43) (  -0.86,-132.74)  305.56                80
 10/04/2017   07:43:27   (   0.29,-135.41) (  -0.24,-137.93)  286.49                80
 10/06/2017   07:28:35   (   0.29,-135.40) (   0.38,-134.97)   48.36                80
 10/08/2017   07:16:24   (   0.29,-135.38) (   1.01,-132.02)  382.49                80
 10/08/2017   19:37:39   (  -0.29,-135.38) (   0.06,-137.18)  203.89                80