Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 8 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)
 08/04/2017   00:31:03   (   0.31,-134.54) (  -0.31,-137.28)  312.96                80
 08/05/2017   00:19:34   (   0.31,-134.49) (   0.30,-134.48)    1.46                80
 08/06/2017   00:10:47   (   0.32,-134.44) (   0.97,-131.70)  313.49                80
 08/08/2017   12:32:11   (  -0.32,-134.32) (   0.24,-136.78)  281.04                80
 08/09/2017   12:18:02   (  -0.33,-134.26) (  -0.39,-133.99)   31.57                80
 08/10/2017   12:06:34   (  -0.33,-134.21) (  -1.01,-131.19)  344.07                80
 08/13/2017   00:28:15   (   0.33,-134.03) (  -0.18,-136.35)  263.70                80
 08/14/2017   00:19:27   (   0.33,-133.97) (   0.44,-133.55)   48.38                80
 08/15/2017   00:07:58   (   0.33,-133.91) (   1.07,-130.75)  360.20                80