Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 7 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)
 07/02/2017   00:10:11   (   0.18,-135.46) (   0.87,-132.54)  332.81                80
 07/04/2017   12:29:05   (  -0.20,-135.43) (   0.32,-137.67)  256.38                80
 07/05/2017   12:20:18   (  -0.20,-135.42) (  -0.34,-134.89)   61.18                80
 07/06/2017   12:08:50   (  -0.20,-135.41) (  -0.99,-132.10)  378.55                80
 07/09/2017   00:27:45   (   0.22,-135.38) (  -0.22,-137.23)  211.22                80
 07/10/2017   00:18:58   (   0.22,-135.37) (   0.42,-134.44)  105.67                80
 07/11/2017   00:07:30   (   0.22,-135.35) (   1.06,-131.65)  422.43                80
 07/12/2017   12:37:50   (  -0.24,-135.32) (   0.71,-139.57)  484.78                80
 07/13/2017   12:26:22   (  -0.24,-135.30) (   0.11,-136.77)  168.34                80
 07/14/2017   12:17:34   (  -0.24,-135.28) (  -0.56,-133.99)  147.99                80
 07/15/2017   12:06:06   (  -0.24,-135.25) (  -1.16,-131.19)  464.12                80