Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 12.  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)
 09/13/2017   06:24:20   (   0.21,-135.16) (   0.48,-133.89)  144.19                80
 09/14/2017   18:40:31   (  -0.23,-135.27) (   0.50,-138.46)  364.05                80
 09/15/2017   18:22:30   (  -0.22,-135.30) (  -0.60,-133.46)  208.15                80
 09/17/2017   06:41:30   (   0.24,-135.25) (  -0.39,-138.07)  320.73                80
 09/18/2017   06:20:49   (   0.23,-135.27) (   0.72,-133.07)  250.66                80
 09/19/2017   18:37:01   (  -0.25,-135.37) (   0.27,-137.64)  258.71                80
 09/20/2017   18:19:00   (  -0.24,-135.39) (  -0.84,-132.64)  313.16                80
 09/22/2017   06:37:59   (   0.26,-135.35) (  -0.14,-137.25)  215.44                80
 09/23/2017   06:15:22   (   0.24,-135.36) (   0.96,-132.25)  355.56                37
 09/24/2017   18:33:30   (  -0.26,-135.45) (   0.02,-136.82)  155.19                80
 09/25/2017   18:15:30   (  -0.24,-135.47) (  -1.08,-131.82)  416.08                80