Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 12.  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)
 09/12/2015   23:11:21   (  -0.32,-135.25) (   0.20,-133.09)  248.00                80
 09/15/2015   11:30:50   (   0.29,-135.26) (   0.98,-138.39)  356.25                80
 09/16/2015   11:19:35   (   0.30,-135.27) (   0.40,-135.65)   44.25                80
 09/17/2015   11:11:00   (   0.30,-135.27) (  -0.23,-132.92)  267.64                80
 09/19/2015   23:30:27   (  -0.27,-135.28) (  -0.93,-138.23)  336.28                80
 09/20/2015   23:19:12   (  -0.28,-135.27) (  -0.35,-135.49)   25.08                80
 09/21/2015   23:10:37   (  -0.28,-135.27) (   0.29,-132.76)  286.15                80
 09/24/2015   11:30:06   (   0.24,-135.25) (   0.87,-138.07)  321.37                80
 09/25/2015   11:18:50   (   0.25,-135.24) (   0.28,-135.33)   10.98                80