Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2013 9 18.  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)
 09/18/2013   22:27:24   (  -0.35,-135.46) (   0.59,-131.32)  471.90                80
 09/20/2013   10:58:40   (   0.32,-135.50) (   1.21,-139.51)  456.93                80
 09/21/2013   10:47:51   (   0.32,-135.49) (   0.63,-136.89)  158.76                80
 09/22/2013   10:39:41   (   0.33,-135.49) (   0.04,-134.27)  139.27                80
 09/23/2013   10:28:52   (   0.33,-135.48) (  -0.55,-131.65)  437.18                80
 09/25/2013   22:49:31   (  -0.30,-135.39) (  -0.73,-137.26)  213.24                80
 09/26/2013   22:41:21   (  -0.30,-135.38) (  -0.15,-134.64)   84.15                80
 09/27/2013   22:30:32   (  -0.31,-135.36) (   0.43,-132.01)  381.51                80
 09/30/2013   10:50:57   (   0.27,-135.38) (   0.75,-137.58)  250.37                80
 10/01/2013   10:42:46   (   0.27,-135.36) (   0.20,-134.95)   46.69                80