Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 8 31.  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)
 08/31/2017   18:30:21   (  -0.17,-135.11) (   0.05,-135.94)   96.16                80
 09/01/2017   18:12:21   (  -0.15,-135.10) (  -1.05,-130.95)  473.02                80
 09/03/2017   06:28:40   (   0.18,-134.99) (   0.04,-135.55)   63.46                80
 09/05/2017   18:26:51   (  -0.19,-135.06) (  -0.16,-135.12)    7.70                80
 09/08/2017   06:27:50   (   0.20,-134.93) (   0.26,-134.72)   24.21                80
 09/09/2017   18:44:01   (  -0.23,-134.99) (   0.73,-139.29)  490.19                80
 09/10/2017   18:26:01   (  -0.21,-134.97) (  -0.37,-134.29)   77.58                80
 09/12/2017   06:42:19   (   0.23,-134.85) (  -0.68,-138.88)  458.86                80
 09/13/2017   06:24:19   (   0.22,-134.83) (   0.42,-133.88)  107.75                80