Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 7 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)
 07/19/2015   23:24:02   (   0.21,-135.12) (  -0.38,-137.78)  302.85                80
 07/20/2015   23:15:28   (   0.21,-135.13) (   0.25,-135.06)    9.12                80
 07/21/2015   23:04:14   (   0.21,-135.13) (   0.82,-132.32)  320.10                80
 07/24/2015   11:23:35   (  -0.23,-135.12) (   0.37,-137.60)  282.90                80
 07/25/2015   11:15:01   (  -0.23,-135.12) (  -0.26,-134.87)   28.05                80
 07/26/2015   11:03:48   (  -0.23,-135.12) (  -0.89,-132.15)  338.56                80
 07/28/2015   23:23:27   (   0.25,-135.12) (  -0.31,-137.50)  271.49                80
 07/29/2015   23:14:53   (   0.25,-135.11) (   0.33,-134.77)   38.47                80
 07/30/2015   23:03:40   (   0.25,-135.10) (   0.97,-132.05)  348.29                80