Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2015   19:28:14   (  -0.33,-135.30) (  -0.57,-134.17)  129.09                80
 09/20/2015   07:46:57   (   0.34,-135.24) (  -0.56,-139.35)  467.56                80
 09/21/2015   19:16:00   (  -0.32,-135.30) (  -1.21,-131.20)  465.69                80
 09/22/2015   07:34:43   (   0.33,-135.23) (   0.08,-136.39)  131.17                80
 09/24/2015   07:25:09   (   0.33,-135.22) (   0.73,-133.42)  204.52                80
 09/24/2015   19:43:44   (  -0.34,-135.27) (   0.35,-138.58)  376.27                80
 09/26/2015   19:31:29   (  -0.33,-135.24) (  -0.24,-135.60)   41.25                80
 09/28/2015   19:21:55   (  -0.33,-135.22) (  -0.90,-132.64)  293.27                80
 09/29/2015   07:43:18   (   0.34,-135.15) (  -0.22,-137.82)  303.46                80
 10/01/2015   07:28:23   (   0.34,-135.12) (   0.39,-134.85)   30.33                80