Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 12 13.  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)
 12/13/2016   23:46:22   (   0.09,-135.25) (   0.84,-132.02)  368.15                80
 12/16/2016   12:05:16   (  -0.10,-135.24) (   0.33,-137.17)  219.42                80
 12/17/2016   11:56:32   (  -0.10,-135.22) (  -0.29,-134.39)   95.10                80
 12/18/2016   11:45:07   (  -0.09,-135.20) (  -0.91,-131.61)  409.58                80
 12/21/2016   00:04:19   (   0.11,-135.10) (  -0.27,-136.82)  195.88                80
 12/21/2016   23:55:34   (   0.10,-135.08) (   0.36,-134.05)  118.48                80
 12/22/2016   23:44:10   (   0.10,-135.06) (   0.99,-131.27)  432.72                80
 12/24/2016   12:14:28   (  -0.11,-135.06) (   0.86,-139.18)  470.96                80
 12/25/2016   12:03:04   (  -0.10,-135.03) (   0.24,-136.40)  157.18                80
 12/26/2016   11:54:20   (  -0.10,-135.00) (  -0.44,-133.64)  156.50                80