Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 9 9.  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)
 09/11/2017   12:41:06   (   0.24,-135.20) (   1.03,-138.56)  383.00                80
 09/12/2017   12:29:38   (   0.25,-135.23) (   0.38,-135.76)   61.22                80
 09/13/2017   12:20:49   (   0.25,-135.25) (  -0.27,-132.97)  260.36                80
 09/16/2017   00:39:47   (  -0.22,-135.21) (  -0.89,-138.12)  331.71                80
 09/17/2017   00:28:19   (  -0.22,-135.23) (  -0.22,-135.32)   10.43                80
 09/18/2017   00:19:29   (  -0.23,-135.25) (   0.39,-132.52)  311.37                80
 09/20/2017   12:38:16   (   0.19,-135.39) (   0.73,-137.63)  255.70                80
 09/21/2017   12:29:27   (   0.20,-135.41) (   0.07,-134.84)   65.38                80
 09/22/2017   12:17:59   (   0.21,-135.43) (  -0.58,-132.04)  386.36                80