Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 4.  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)
 03/05/2018   18:35:54   (   0.02,-135.31) (   0.32,-136.79)  167.17                80
 03/06/2018   18:17:54   (   0.02,-135.30) (  -0.74,-131.78)  400.20                80
 03/08/2018   06:34:14   (  -0.02,-135.26) (  -0.25,-136.38)  127.79                80
 03/09/2018   06:16:13   (  -0.02,-135.24) (   0.82,-131.38)  439.13                80
 03/10/2018   18:32:26   (   0.02,-135.21) (   0.15,-135.95)   83.75                80
 03/11/2018   18:14:25   (   0.02,-135.19) (  -0.91,-130.95)  482.92                80
 03/13/2018   06:30:46   (  -0.02,-135.14) (  -0.08,-135.55)   46.15                80
 03/15/2018   18:28:56   (   0.02,-135.08) (   0.04,-135.11)    3.96                80
 03/18/2018   06:29:56   (  -0.02,-134.99) (   0.03,-134.70)   32.62                80