Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/04/2017   07:31:20   (   0.25,-134.99) (   0.29,-134.95)    6.33                80
 09/06/2017   07:16:28   (   0.25,-134.97) (   0.88,-131.99)  338.88                80
 09/06/2017   19:37:44   (  -0.27,-135.03) (   0.19,-137.15)  241.10                80
 09/08/2017   19:28:12   (  -0.27,-135.00) (  -0.42,-134.19)   91.86                80
 09/10/2017   19:16:00   (  -0.26,-134.96) (  -1.03,-131.23)  424.19                80
 09/11/2017   07:37:25   (   0.28,-134.89) (  -0.01,-136.43)  174.55                80
 09/13/2017   07:22:32   (   0.27,-134.84) (   0.55,-133.46)  156.64                80
 09/13/2017   19:43:48   (  -0.29,-134.88) (   0.52,-138.62)  425.73                80
 09/15/2017   07:10:20   (   0.26,-134.79) (   1.18,-130.50)  487.12                80
 09/15/2017   19:31:36   (  -0.28,-134.83) (  -0.12,-135.67)   95.10                80
 09/17/2017   19:22:03   (  -0.28,-134.77) (  -0.70,-132.70)  235.14                80