Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 11.  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)
 09/12/2018   06:42:19   (   0.25,-135.26) (  -0.54,-138.91)  416.08                80
 09/13/2018   06:24:17   (   0.23,-135.29) (   0.52,-133.91)  157.02                80
 09/14/2018   18:40:28   (  -0.25,-135.41) (   0.40,-138.49)  350.17                80
 09/15/2018   18:22:27   (  -0.23,-135.44) (  -0.65,-133.48)  223.02                80
 09/17/2018   06:38:46   (   0.26,-135.41) (  -0.34,-138.08)  304.34                80
 09/18/2018   06:20:46   (   0.24,-135.43) (   0.78,-133.09)  268.01                80
 09/19/2018   18:36:56   (  -0.26,-135.54) (   0.21,-137.65)  240.73                80
 09/20/2018   18:18:56   (  -0.25,-135.56) (  -0.91,-132.66)  331.72                80
 09/22/2018   06:35:14   (   0.27,-135.53) (  -0.13,-137.25)  196.01                80
 09/23/2018   06:17:13   (   0.26,-135.55) (   0.99,-132.25)  375.68                80
 09/24/2018   18:33:24   (  -0.28,-135.64) (   0.01,-136.82)  134.48                80