Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 20.  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)
 09/20/2015   23:19:12   (  -0.28,-135.27) (  -0.32,-135.49)   24.26                80
 09/21/2015   23:10:37   (  -0.28,-135.27) (   0.32,-132.76)  286.81                80
 09/24/2015   11:30:05   (   0.24,-135.24) (   0.88,-138.06)  321.42                80
 09/25/2015   11:18:50   (   0.25,-135.23) (   0.29,-135.32)   11.17                80
 09/26/2015   11:10:15   (   0.25,-135.22) (  -0.36,-132.60)  299.40                80
 09/28/2015   23:29:41   (  -0.22,-135.18) (  -0.86,-137.88)  308.72                80
 09/29/2015   23:21:07   (  -0.23,-135.17) (  -0.22,-135.16)    1.52                80
 09/30/2015   23:09:51   (  -0.23,-135.15) (   0.37,-132.42)  311.30                80
 10/03/2015   11:29:18   (   0.20,-135.10) (   0.80,-137.72)  298.36                80