Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2018   18:40:28   (  -0.25,-135.40) (   0.45,-138.47)  350.81                80
 09/15/2018   18:22:27   (  -0.23,-135.43) (  -0.67,-133.48)  222.17                80
 09/17/2018   06:38:46   (   0.26,-135.40) (  -0.33,-138.08)  305.40                80
 09/18/2018   06:20:46   (   0.24,-135.42) (   0.79,-133.09)  266.75                80
 09/19/2018   18:36:56   (  -0.26,-135.52) (   0.20,-137.65)  242.46                80
 09/20/2018   18:18:56   (  -0.25,-135.55) (  -0.92,-132.66)  329.80                80
 09/22/2018   06:35:14   (   0.27,-135.51) (  -0.13,-137.25)  198.11                80
 09/23/2018   06:17:14   (   0.26,-135.53) (   0.99,-132.25)  373.34                80
 09/24/2018   18:33:24   (  -0.28,-135.62) (   0.01,-136.82)  137.26                80
 09/25/2018   18:15:23   (  -0.26,-135.64) (  -1.11,-131.82)  434.36                80
 09/27/2018   06:31:42   (   0.29,-135.60) (   0.08,-136.42)   93.88                80