Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 6.  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)
 03/06/2018   18:17:54   (   0.02,-135.30) (  -0.79,-131.79)  400.09                80
 03/08/2018   06:34:14   (  -0.02,-135.25) (  -0.26,-136.38)  128.37                80
 03/09/2018   06:16:14   (  -0.02,-135.23) (   0.86,-131.39)  438.40                80
 03/10/2018   18:32:25   (   0.01,-135.21) (   0.17,-135.95)   84.34                80
 03/11/2018   18:14:26   (   0.02,-135.18) (  -0.95,-130.96)  482.13                80
 03/13/2018   06:30:45   (  -0.01,-135.13) (  -0.10,-135.55)   47.41                80
 03/15/2018   18:31:37   (   0.01,-135.07) (  -0.00,-135.12)    5.73                80
 03/18/2018   06:29:57   (  -0.02,-134.97) (   0.07,-134.71)   30.64                80
 03/19/2018   18:46:07   (   0.01,-134.93) (   1.01,-139.26)  494.14                80