Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 9 11.  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)
 09/14/2015   06:28:59   (   0.27,-135.23) (   0.36,-134.84)   44.93                80
 09/15/2015   18:45:10   (  -0.29,-135.30) (   0.64,-139.40)  468.35                80
 09/16/2015   18:27:10   (  -0.28,-135.30) (  -0.50,-134.41)  101.57                80
 09/18/2015   06:43:30   (   0.30,-135.25) (  -0.52,-139.01)  428.79                80
 09/19/2015   06:25:29   (   0.28,-135.25) (   0.56,-134.01)  140.55                80
 09/20/2015   18:41:40   (  -0.30,-135.30) (   0.44,-138.58)  374.13                80
 09/21/2015   18:23:40   (  -0.29,-135.29) (  -0.65,-133.58)  194.81                80
 09/23/2015   06:39:59   (   0.30,-135.23) (  -0.37,-138.18)  336.81                80
 09/24/2015   06:21:59   (   0.29,-135.22) (   0.72,-133.18)  231.54                80