Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2014 12 25.  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)
 12/25/2014   23:14:45   (   0.11,-135.30) (  -0.64,-138.66)  382.69                80
 12/26/2014   23:03:38   (   0.11,-135.29) (  -0.08,-135.96)   76.77                80
 12/27/2014   22:55:11   (   0.10,-135.27) (   0.55,-133.26)  229.15                80
 12/30/2014   11:15:00   (  -0.12,-135.27) (   0.64,-138.66)  385.98                80
 12/31/2014   11:03:52   (  -0.11,-135.25) (   0.07,-135.96)   80.56                80
 01/01/2015   10:55:26   (  -0.10,-135.23) (  -0.56,-133.26)  224.79                80
 01/03/2015   23:15:12   (   0.11,-135.13) (  -0.66,-138.64)  400.60                80
 01/04/2015   23:04:04   (   0.10,-135.10) (  -0.08,-135.94)   95.49                80
 01/05/2015   22:55:37   (   0.10,-135.08) (   0.51,-133.24)  209.50                80