Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 6 1.  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)
 06/01/2016   23:51:22   (   0.04,-134.95) (  -0.73,-138.31)  383.13                80
 06/02/2016   23:40:02   (   0.04,-134.99) (  -0.09,-135.55)   64.22                80
 06/03/2016   23:31:21   (   0.04,-135.03) (   0.56,-132.80)  254.51                80
 06/06/2016   11:50:34   (  -0.06,-135.13) (   0.62,-138.03)  330.25                80
 06/07/2016   11:39:14   (  -0.05,-135.17) (  -0.03,-135.27)   11.81                80
 06/08/2016   11:30:33   (  -0.05,-135.20) (  -0.68,-132.52)  306.55                80
 06/10/2016   23:49:45   (   0.07,-135.26) (  -0.47,-137.74)  283.11                80
 06/11/2016   23:41:03   (   0.07,-135.29) (   0.12,-134.98)   35.08                80
 06/12/2016   23:29:43   (   0.06,-135.32) (   0.77,-132.22)  353.04                80