Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 10 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/01/2017   19:31:35   (  -0.29,-135.43) (  -0.27,-135.70)   29.60                80
 10/03/2017   19:22:02   (  -0.29,-135.43) (  -0.85,-132.73)  306.62                80
 10/04/2017   07:43:26   (   0.30,-135.41) (  -0.24,-137.92)  285.96                80
 10/06/2017   07:28:33   (   0.29,-135.40) (   0.36,-134.96)   49.24                80
 10/08/2017   07:16:21   (   0.29,-135.38) (   1.03,-132.01)  383.62                80
 10/08/2017   19:37:36   (  -0.30,-135.38) (   0.09,-137.16)  202.09                80
 10/10/2017   19:28:03   (  -0.29,-135.35) (  -0.53,-134.20)  131.54                80
 10/11/2017   07:49:27   (   0.29,-135.34) (  -0.55,-139.39)  459.76                80
 10/12/2017   19:15:50   (  -0.28,-135.32) (  -1.16,-131.24)  464.60                80
 10/13/2017   07:37:13   (   0.28,-135.31) (   0.02,-136.42)  127.04                80