Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 10.  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)
 05/12/2018   18:28:34   (  -0.14,-135.44) (  -0.19,-135.18)   29.87                80
 05/14/2018   06:47:33   (   0.14,-135.40) (  -0.86,-139.77)  498.78                80
 05/15/2018   06:29:34   (   0.14,-135.39) (   0.28,-134.78)   68.67                80
 05/16/2018   18:48:24   (  -0.15,-135.38) (   0.76,-139.34)  451.77                80
 05/17/2018   18:25:05   (  -0.15,-135.36) (  -0.39,-134.35)  114.86                80
 05/19/2018   06:44:04   (   0.15,-135.30) (  -0.65,-138.95)  415.60                80
 05/20/2018   06:26:03   (   0.16,-135.27) (   0.43,-133.94)  150.78                80
 05/21/2018   18:44:55   (  -0.16,-135.26) (   0.56,-138.51)  370.78                80
 05/22/2018   18:21:34   (  -0.16,-135.23) (  -0.53,-133.51)  195.30                80
 05/24/2018   06:40:34   (   0.16,-135.16) (  -0.50,-138.11)  335.74                80