Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 9 18.  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)
 09/19/2016   12:03:05   (   0.24,-135.49) (   0.97,-138.68)  364.00                80
 09/20/2016   11:51:42   (   0.25,-135.49) (   0.34,-135.92)   48.65                80
 09/21/2016   11:43:00   (   0.25,-135.48) (  -0.30,-133.15)  266.54                80
 09/24/2016   00:02:07   (  -0.22,-135.41) (  -0.90,-138.34)  334.63                80
 09/24/2016   23:50:44   (  -0.22,-135.41) (  -0.26,-135.58)   19.65                80
 09/25/2016   23:42:02   (  -0.23,-135.40) (   0.39,-132.82)  295.21                80
 09/28/2016   12:01:09   (   0.19,-135.42) (   0.79,-138.02)  296.42                80
 09/29/2016   11:52:27   (   0.20,-135.41) (   0.14,-135.25)   18.18                80
 09/30/2016   11:41:04   (   0.20,-135.40) (  -0.44,-132.48)  332.62                80