Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2017   06:42:20   (   0.23,-135.14) (  -0.62,-138.89)  427.74                80
 09/13/2017   06:24:19   (   0.21,-135.16) (   0.48,-133.89)  144.24                80
 09/14/2017   18:40:31   (  -0.23,-135.27) (   0.51,-138.46)  364.26                80
 09/15/2017   18:22:31   (  -0.22,-135.29) (  -0.65,-133.48)  207.93                80
 09/17/2017   06:41:30   (   0.24,-135.25) (  -0.39,-138.07)  320.80                80
 09/18/2017   06:20:49   (   0.23,-135.27) (   0.71,-133.07)  250.54                80
 09/19/2017   18:37:00   (  -0.25,-135.37) (   0.27,-137.64)  259.11                80
 09/20/2017   18:19:00   (  -0.24,-135.39) (  -0.83,-132.64)  312.75                80
 09/22/2017   06:37:59   (   0.26,-135.35) (  -0.15,-137.24)  215.66                80
 09/23/2017   06:14:39   (   0.24,-135.36) (   0.96,-132.25)  355.28                80
 09/24/2017   18:33:30   (  -0.26,-135.45) (   0.02,-136.82)  155.76                80