Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 7 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)
 07/27/2017   07:22:20   (  -0.01,-134.85) (   0.32,-133.35)  170.69                80
 07/27/2017   19:46:14   (   0.04,-134.90) (   0.84,-138.50)  410.55                80
 07/29/2017   07:10:09   (  -0.01,-134.78) (   0.91,-130.40)  498.04                80
 07/29/2017   19:34:04   (   0.04,-134.82) (   0.18,-135.55)   83.26                80
 07/31/2017   19:19:14   (   0.03,-134.74) (  -0.42,-132.60)  243.55                80
 08/01/2017   07:43:16   (  -0.07,-134.66) (  -0.76,-137.77)  354.89                80
 08/03/2017   07:31:06   (  -0.06,-134.57) (  -0.09,-134.83)   28.98                80
 08/05/2017   07:16:15   (  -0.05,-134.47) (   0.53,-131.87)  296.61                80
 08/05/2017   19:40:10   (   0.09,-134.51) (   0.63,-137.02)  285.55                80
 08/07/2017   19:25:19   (   0.08,-134.41) (   0.01,-134.06)   39.20                80