Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 12 9.  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)
 12/11/2017   00:56:00   (   0.11,-135.37) (  -0.87,-139.55)  476.75                80
 12/12/2017   00:44:30   (   0.10,-135.38) (  -0.19,-136.75)  156.19                80
 12/13/2017   00:35:40   (   0.10,-135.38) (   0.43,-133.94)  164.34                80
 12/14/2017   00:24:09   (   0.09,-135.39) (   1.06,-131.14)  484.75                80
 12/15/2017   12:54:19   (  -0.11,-135.45) (   0.73,-139.01)  406.09                80
 12/16/2017   12:42:48   (  -0.10,-135.46) (   0.09,-136.20)   85.77                80
 12/17/2017   12:33:58   (  -0.09,-135.45) (  -0.56,-133.40)  234.37                80
 12/20/2017   00:55:34   (   0.10,-135.38) (  -0.65,-138.53)  359.45                80
 12/21/2017   00:41:23   (   0.09,-135.38) (  -0.01,-135.72)   40.12                80
 12/22/2017   00:29:53   (   0.09,-135.37) (   0.63,-132.92)  279.27                80