Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 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)
 08/28/2017   07:25:13   (   0.22,-135.03) (   0.54,-133.45)  179.02                80
 08/28/2017   19:43:50   (  -0.25,-135.11) (   0.48,-138.63)  400.04                80
 08/30/2017   19:31:38   (  -0.24,-135.10) (  -0.09,-135.66)   64.54                80
 09/01/2017   19:22:07   (  -0.23,-135.09) (  -0.72,-132.71)  270.35                80
 09/02/2017   07:43:32   (   0.26,-135.02) (  -0.33,-137.91)  328.29                80
 09/04/2017   07:28:40   (   0.25,-135.00) (   0.25,-134.95)    5.88                80
 09/06/2017   07:16:29   (   0.25,-134.98) (   0.89,-132.00)  339.12                80
 09/06/2017   19:37:45   (  -0.27,-135.03) (   0.19,-137.16)  241.86                80
 09/08/2017   19:28:14   (  -0.27,-135.00) (  -0.45,-134.20)   90.97                80