Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 3.  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) (   0.28,-134.95)    5.69                80
 09/06/2017   07:16:28   (   0.25,-134.97) (   0.87,-131.98)  338.86                80
 09/06/2017   19:37:44   (  -0.27,-135.03) (   0.20,-137.15)  241.34                80
 09/08/2017   19:28:12   (  -0.27,-135.00) (  -0.41,-134.19)   91.63                80
 09/10/2017   19:16:00   (  -0.26,-134.96) (  -1.03,-131.23)  423.92                80
 09/11/2017   07:37:24   (   0.28,-134.89) (  -0.07,-136.42)  174.60                80
 09/13/2017   07:22:32   (   0.27,-134.84) (   0.56,-133.46)  156.58                80
 09/13/2017   19:43:48   (  -0.29,-134.88) (   0.51,-138.62)  426.00                80
 09/15/2017   07:10:20   (   0.26,-134.78) (   1.19,-130.50)  487.08                80
 09/15/2017   19:31:36   (  -0.28,-134.82) (  -0.13,-135.67)   95.40                80