Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 1.  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)
 09/01/2017   18:12:22   (  -0.15,-135.10) (  -1.09,-130.95)  473.20                80
 09/03/2017   06:28:40   (   0.18,-134.99) (   0.03,-135.54)   63.65                80
 09/05/2017   18:26:52   (  -0.19,-135.06) (  -0.20,-135.13)    7.75                80
 09/08/2017   06:27:50   (   0.20,-134.93) (   0.24,-134.71)   24.09                80
 09/09/2017   18:44:01   (  -0.23,-134.99) (   0.75,-139.28)  490.01                80
 09/10/2017   18:26:01   (  -0.21,-134.97) (  -0.35,-134.28)   77.78                80
 09/12/2017   06:42:20   (   0.23,-134.85) (  -0.64,-138.89)  459.01                80
 09/13/2017   06:24:18   (   0.22,-134.83) (   0.40,-133.88)  107.63                80
 09/14/2017   18:40:30   (  -0.24,-134.86) (   0.59,-138.44)  408.76                80