Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2017 11 15.  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)
 11/17/2017   06:33:31   (   0.21,-134.94) (   0.10,-135.52)   65.69                80
 11/19/2017   18:29:04   (  -0.21,-135.00) (  -0.18,-135.09)   10.05                80
 11/22/2017   06:27:26   (   0.20,-135.11) (   0.27,-134.69)   47.81                80
 11/23/2017   18:46:18   (  -0.19,-135.12) (   0.74,-139.25)  471.31                80
 11/24/2017   18:28:19   (  -0.19,-135.15) (  -0.41,-134.27)  101.02                80
 11/26/2017   06:47:20   (   0.18,-135.23) (  -0.65,-138.86)  413.54                80
 11/27/2017   06:24:01   (   0.18,-135.25) (   0.50,-133.87)  157.64                80
 11/28/2017   18:42:52   (  -0.17,-135.24) (   0.55,-138.42)  363.03                80
 11/29/2017   18:24:54   (  -0.17,-135.27) (  -0.60,-133.44)  208.49                80