Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 10 21.  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)
 10/22/2017   00:30:45   (  -0.04,-135.09) (   0.15,-134.27)   93.69                80
 10/23/2017   00:19:16   (  -0.05,-135.07) (   0.79,-131.47)  410.45                80
 10/24/2017   12:49:36   (   0.01,-135.12) (   1.02,-139.39)  487.90                80
 10/25/2017   12:38:07   (   0.02,-135.09) (   0.38,-136.59)  171.68                80
 10/26/2017   12:29:17   (   0.02,-135.05) (  -0.26,-133.79)  144.35                80
 10/27/2017   12:17:48   (   0.03,-135.02) (  -0.90,-130.99)  460.26                80
 10/29/2017   00:48:05   (   0.01,-134.86) (  -0.95,-138.89)  460.08                80
 10/30/2017   00:36:36   (   0.00,-134.82) (  -0.31,-136.09)  144.43                80
 10/31/2017   00:27:46   (  -0.00,-134.79) (   0.33,-133.28)  171.04                80
 11/01/2017   00:16:17   (  -0.01,-134.75) (   0.97,-130.48)  486.44                80
 11/02/2017   12:46:37   (  -0.03,-134.78) (   0.80,-138.41)  413.22                80
 11/03/2017   12:35:06   (  -0.02,-134.74) (   0.21,-135.59)   98.25                80
 11/04/2017   12:26:17   (  -0.01,-134.69) (  -0.45,-132.80)  216.54                80