Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 11.  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)
 09/11/2015   23:22:43   (  -0.31,-135.24) (   0.00,-135.91)   81.99                80
 09/12/2015   23:11:21   (  -0.31,-135.25) (   0.17,-133.08)  247.88                80
 09/15/2015   11:30:50   (   0.29,-135.26) (   1.01,-138.39)  356.33                80
 09/16/2015   11:19:35   (   0.30,-135.27) (   0.38,-135.66)   44.34                80
 09/17/2015   11:11:01   (   0.30,-135.27) (  -0.26,-132.93)  267.50                80
 09/19/2015   23:30:26   (  -0.27,-135.27) (  -0.96,-138.22)  336.61                80
 09/20/2015   23:19:12   (  -0.28,-135.27) (  -0.32,-135.49)   25.28                80
 09/21/2015   23:10:38   (  -0.28,-135.26) (   0.31,-132.76)  285.76                80
 09/24/2015   11:30:05   (   0.24,-135.24) (   0.90,-138.06)  321.74                80
 09/25/2015   11:21:31   (   0.25,-135.23) (   0.25,-135.34)   11.44                80