Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 5 19.  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)
 05/20/2018   18:03:48   (  -0.16,-135.30) (  -1.11,-130.95)  495.17                80
 05/22/2018   06:22:45   (   0.16,-135.25) (   0.07,-135.55)   34.79                80
 05/24/2018   18:20:54   (  -0.17,-135.21) (  -0.19,-135.12)    9.92                80
 05/27/2018   06:21:50   (   0.17,-135.12) (   0.25,-134.72)   45.79                80
 05/28/2018   18:40:39   (  -0.16,-135.10) (   0.78,-139.28)  476.63                80
 05/29/2018   18:17:19   (  -0.17,-135.07) (  -0.37,-134.29)   89.12                80
 05/31/2018   06:38:55   (   0.17,-135.00) (  -0.72,-138.87)  442.50                80
 06/01/2018   06:15:35   (   0.18,-134.96) (   0.43,-133.89)  122.94                80
 06/02/2018   18:37:04   (  -0.17,-134.93) (   0.59,-138.45)  400.48                80