Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 10 8.  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)
 10/08/2018   18:43:52   (  -0.32,-135.64) (   0.52,-139.34)  421.22                80
 10/09/2018   18:25:53   (  -0.31,-135.64) (  -0.58,-134.34)  147.88                80
 10/11/2018   06:44:53   (   0.32,-135.57) (  -0.44,-138.94)  383.26                80
 10/12/2018   06:21:34   (   0.31,-135.56) (   0.66,-133.94)  184.88                80
 10/13/2018   18:40:26   (  -0.32,-135.60) (   0.36,-138.50)  331.05                80
 10/14/2018   18:22:27   (  -0.31,-135.59) (  -0.80,-133.52)  237.38                80
 10/16/2018   06:41:27   (   0.32,-135.52) (  -0.27,-138.10)  294.01                80
 10/17/2018   06:18:07   (   0.30,-135.51) (   0.83,-133.10)  273.36                80
 10/18/2018   18:37:01   (  -0.31,-135.53) (   0.14,-137.68)  244.34                80
 10/19/2018   18:19:01   (  -0.30,-135.52) (  -0.96,-132.68)  323.41                80
 10/21/2018   06:38:00   (   0.31,-135.44) (  -0.11,-137.27)  208.03                80
 10/22/2018   06:14:41   (   0.31,-135.42) (   0.99,-132.27)  358.65                80