Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 8 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)
 08/05/2018   06:31:50   (   0.02,-135.37) (  -0.02,-135.56)   21.96                80
 08/07/2018   18:27:20   (  -0.01,-135.36) (  -0.10,-135.13)   27.73                80
 08/10/2018   06:25:38   (   0.00,-135.26) (   0.12,-134.72)   61.35                80
 08/11/2018   18:47:07   (   0.04,-135.26) (   0.92,-139.27)  456.39                80
 08/12/2018   18:23:46   (   0.00,-135.24) (  -0.19,-134.27)  109.11                80
 08/14/2018   06:45:25   (  -0.05,-135.14) (  -0.89,-138.86)  423.58                80
 08/15/2018   06:22:05   (  -0.02,-135.12) (   0.27,-133.87)  141.85                80
 08/16/2018   18:43:35   (   0.06,-135.12) (   0.77,-138.43)  376.25                80
 08/17/2018   18:20:14   (   0.03,-135.09) (  -0.34,-133.43)  188.90                80