Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2013 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2013   10:47:51   (   0.32,-135.50) (   0.65,-136.89)  158.19                80
 09/22/2013   10:39:41   (   0.33,-135.49) (   0.06,-134.26)  139.90                80
 09/23/2013   10:28:52   (   0.34,-135.48) (  -0.54,-131.64)  437.87                80
 09/25/2013   22:49:31   (  -0.30,-135.40) (  -0.74,-137.25)  212.47                80
 09/26/2013   22:41:22   (  -0.30,-135.38) (  -0.11,-134.64)   85.00                80
 09/27/2013   22:30:33   (  -0.31,-135.37) (   0.47,-132.02)  382.34                80
 09/30/2013   10:50:56   (   0.27,-135.39) (   0.78,-137.57)  249.44                80
 10/01/2013   10:42:47   (   0.27,-135.37) (   0.18,-134.95)   47.51                80
 10/02/2013   10:31:58   (   0.28,-135.35) (  -0.41,-132.33)  344.39                80