Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 6 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)
 06/19/2016   23:48:05   (   0.11,-135.43) (  -0.30,-137.15)  196.68                80
 06/20/2016   23:39:24   (   0.11,-135.44) (   0.35,-134.40)  119.52                80
 06/21/2016   23:28:04   (   0.10,-135.45) (   1.01,-131.64)  435.59                80
 06/23/2016   11:58:34   (  -0.13,-135.49) (   0.79,-139.62)  470.02                80
 06/24/2016   11:47:13   (  -0.13,-135.50) (   0.17,-136.85)  154.18                80
 06/25/2016   11:38:31   (  -0.12,-135.51) (  -0.45,-134.09)  161.52                80
 06/26/2016   11:27:10   (  -0.12,-135.51) (  -1.06,-131.33)  477.11                80
 06/27/2016   23:57:45   (   0.14,-135.49) (  -0.76,-139.32)  437.41                80
 06/28/2016   23:46:25   (   0.14,-135.49) (  -0.10,-136.56)  122.39                80
 06/29/2016   23:37:43   (   0.14,-135.49) (   0.51,-133.80)  192.43                80