Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2016 9 18.  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)
 09/20/2016   06:30:11   (   0.27,-135.44) (   0.21,-135.65)   23.80                80
 09/22/2016   18:31:04   (  -0.28,-135.47) (  -0.33,-135.22)   29.35                80
 09/25/2016   06:29:25   (   0.28,-135.41) (   0.39,-134.81)   67.81                80
 09/26/2016   18:45:38   (  -0.29,-135.43) (   0.57,-139.38)  449.32                80
 09/27/2016   18:27:39   (  -0.28,-135.42) (  -0.53,-134.38)  119.21                80
 09/29/2016   06:43:59   (   0.30,-135.37) (  -0.50,-138.97)  410.69                80
 09/30/2016   06:26:00   (   0.29,-135.35) (   0.59,-133.97)  157.23                80
 10/01/2016   18:42:12   (  -0.30,-135.37) (   0.42,-138.53)  360.82                80