Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2014 12 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)
 12/18/2014   22:54:41   (   0.09,-135.38) (   0.56,-133.27)  241.20                80
 12/21/2014   11:14:30   (  -0.10,-135.41) (   0.64,-138.66)  370.68                80
 12/22/2014   11:03:23   (  -0.10,-135.41) (   0.04,-135.97)   64.25                80
 12/23/2014   10:54:57   (  -0.09,-135.40) (  -0.56,-133.27)  242.03                80
 12/25/2014   23:14:45   (   0.11,-135.32) (  -0.67,-138.66)  381.38                80
 12/26/2014   23:03:38   (   0.10,-135.31) (  -0.05,-135.96)   75.27                80
 12/27/2014   22:55:12   (   0.10,-135.29) (   0.58,-133.27)  230.71                80
 12/30/2014   11:15:00   (  -0.11,-135.30) (   0.67,-138.66)  383.70                80
 12/31/2014   11:03:53   (  -0.11,-135.28) (   0.04,-135.96)   78.13                80
 01/01/2015   10:55:26   (  -0.10,-135.26) (  -0.54,-133.26)  227.34                80