Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 10 23.  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)
 10/24/2017   12:49:36   (   0.01,-135.12) (   1.01,-139.39)  487.92                80
 10/25/2017   12:38:07   (   0.02,-135.09) (   0.37,-136.59)  171.73                80
 10/26/2017   12:29:17   (   0.02,-135.05) (  -0.27,-133.79)  144.26                80
 10/27/2017   12:17:48   (   0.03,-135.02) (  -0.92,-130.99)  460.15                80
 10/29/2017   00:48:05   (   0.01,-134.86) (  -0.93,-138.89)  460.32                80
 10/30/2017   00:36:36   (   0.00,-134.82) (  -0.29,-136.09)  144.69                80
 10/31/2017   00:27:46   (  -0.00,-134.78) (   0.35,-133.29)  170.74                80
 11/01/2017   00:16:17   (  -0.01,-134.74) (   1.00,-130.49)  486.12                80
 11/02/2017   12:46:36   (  -0.03,-134.78) (   0.83,-138.40)  413.49                80
 11/03/2017   12:35:07   (  -0.02,-134.73) (   0.17,-135.60)   98.49                80
 11/04/2017   12:26:16   (  -0.01,-134.69) (  -0.42,-132.79)  216.26                80