Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 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)
 08/24/2017   07:46:56   (   0.23,-135.02) (  -0.67,-139.37)  494.18                80
 08/25/2017   19:16:00   (  -0.20,-135.11) (  -1.00,-131.22)  442.32                80
 08/26/2017   07:34:45   (   0.23,-135.03) (  -0.05,-136.42)  157.30                80
 08/28/2017   07:25:14   (   0.22,-135.04) (   0.57,-133.47)  179.12                80
 08/28/2017   19:43:50   (  -0.25,-135.11) (   0.51,-138.63)  399.85                80
 08/30/2017   19:31:39   (  -0.24,-135.11) (  -0.12,-135.67)   64.00                80
 09/01/2017   19:22:08   (  -0.23,-135.10) (  -0.74,-132.72)  271.06                80
 09/02/2017   07:43:32   (   0.26,-135.03) (  -0.36,-137.91)  327.52                80
 09/04/2017   07:31:21   (   0.25,-135.02) (   0.27,-134.96)    6.75                80
 09/06/2017   07:19:10   (   0.25,-135.00) (   0.90,-132.01)  340.42                80
 09/06/2017   19:37:45   (  -0.27,-135.05) (   0.18,-137.17)  240.46                80