Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 7 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)
 07/11/2015   23:13:20   (   0.17,-135.04) (   0.10,-135.32)   32.15                80
 07/12/2015   23:04:47   (   0.17,-135.06) (   0.72,-132.59)  280.47                80
 07/15/2015   11:24:09   (  -0.20,-135.09) (   0.42,-137.88)  318.23                80
 07/16/2015   11:15:35   (  -0.20,-135.10) (  -0.21,-135.16)    6.31                80
 07/17/2015   11:04:22   (  -0.19,-135.12) (  -0.83,-132.43)  306.66                80
 07/19/2015   23:24:01   (   0.21,-135.16) (  -0.38,-137.78)  299.54                80
 07/20/2015   23:15:28   (   0.21,-135.17) (   0.25,-135.06)   12.62                80
 07/21/2015   23:04:15   (   0.21,-135.18) (   0.88,-132.34)  324.52                80
 07/24/2015   11:23:35   (  -0.23,-135.18) (   0.30,-137.61)  276.85                80