Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 5.  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) (  -0.77,-131.79)  400.09                80
 03/08/2018   06:34:13   (  -0.02,-135.25) (  -0.28,-136.38)  128.15                80
 03/09/2018   06:16:14   (  -0.02,-135.23) (   0.84,-131.38)  438.66                80
 03/10/2018   18:32:25   (   0.02,-135.21) (   0.19,-135.94)   84.12                80
 03/11/2018   18:14:26   (   0.02,-135.18) (  -0.94,-130.95)  482.41                80
 03/13/2018   06:30:45   (  -0.02,-135.13) (  -0.12,-135.54)   46.89                80
 03/15/2018   18:28:57   (   0.02,-135.07) (   0.02,-135.11)    4.54                80
 03/18/2018   06:29:57   (  -0.02,-134.98) (   0.05,-134.71)   31.34                80
 03/19/2018   18:46:08   (   0.01,-134.94) (   0.97,-139.27)  493.41                80