Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 6 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2018   06:28:07   (   0.17,-134.57) (  -0.23,-136.37)  204.31                80
 06/16/2018   06:04:47   (   0.19,-134.62) (   0.92,-131.38)  369.74                80
 06/17/2018   18:26:16   (  -0.18,-134.69) (   0.08,-135.95)  142.49                80
 06/18/2018   18:02:55   (  -0.19,-134.74) (  -1.02,-130.95)  431.28                80
 06/20/2018   06:24:33   (   0.18,-134.81) (   0.04,-135.56)   84.66                80
 06/21/2018   06:01:12   (   0.19,-134.85) (   1.14,-130.56)  489.15                80
 06/22/2018   18:22:41   (  -0.18,-134.92) (  -0.14,-135.12)   23.23                80
 06/25/2018   06:18:18   (   0.17,-135.02) (   0.26,-134.73)   33.50                80
 06/26/2018   18:39:46   (  -0.16,-135.08) (   0.79,-139.29)  479.49                80
 06/27/2018   18:16:26   (  -0.17,-135.12) (  -0.37,-134.30)   93.23                80