Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 5 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)
 05/19/2016   11:53:48   (   0.00,-134.82) (   1.02,-139.17)  497.41                80
 05/20/2016   11:42:28   (   0.00,-134.78) (   0.39,-136.42)  187.27                80
 05/21/2016   11:33:47   (   0.00,-134.73) (  -0.23,-133.66)  122.73                80
 05/22/2016   11:22:27   (   0.01,-134.69) (  -0.86,-130.90)  432.54                80
 05/23/2016   23:52:59   (   0.02,-134.59) (  -0.95,-138.88)  488.74                80
 05/24/2016   23:41:38   (   0.01,-134.55) (  -0.37,-136.11)  179.15                80
 05/25/2016   23:32:57   (   0.01,-134.50) (   0.27,-133.36)  130.26                80
 05/26/2016   23:21:37   (   0.01,-134.45) (   0.91,-130.60)  439.59                80
 05/28/2016   11:52:10   (  -0.03,-134.40) (   0.94,-138.58)  477.41                80
 05/29/2016   11:40:50   (  -0.02,-134.34) (   0.30,-135.82)  168.60                80
 05/30/2016   11:32:08   (  -0.02,-134.29) (  -0.28,-133.05)  140.11                80
 05/31/2016   11:20:48   (  -0.01,-134.23) (  -0.93,-130.30)  448.64                80