Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 5 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)
 05/21/2016   11:33:48   (   0.00,-134.73) (  -0.25,-133.66)  122.67                80
 05/22/2016   11:22:27   (   0.01,-134.69) (  -0.88,-130.90)  432.50                80
 05/23/2016   23:52:59   (   0.01,-134.60) (  -0.99,-138.87)  488.42                80
 05/24/2016   23:41:38   (   0.01,-134.55) (  -0.35,-136.12)  178.78                80
 05/25/2016   23:32:58   (   0.01,-134.50) (   0.29,-133.36)  130.67                80
 05/26/2016   23:21:36   (   0.01,-134.45) (   0.88,-130.59)  440.02                80
 05/28/2016   11:52:11   (  -0.02,-134.40) (   0.92,-138.58)  477.21                80
 05/29/2016   11:40:49   (  -0.02,-134.34) (   0.33,-135.81)  168.36                80
 05/30/2016   11:32:09   (  -0.02,-134.29) (  -0.31,-133.06)  140.37                80
 05/31/2016   11:20:47   (  -0.01,-134.23) (  -0.89,-130.29)  448.93                80
 06/01/2016   23:51:18   (   0.04,-134.11) (  -0.94,-138.26)  474.64                80
 06/02/2016   23:39:58   (   0.04,-134.05) (  -0.29,-135.51)  166.41                80