Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 4 21.  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)
 04/22/2015   06:27:42   (   0.02,-135.28) (   0.16,-134.74)   61.98                80
 04/23/2015   18:46:33   (  -0.03,-135.30) (   0.86,-139.30)  455.24                80
 04/24/2015   18:28:32   (  -0.03,-135.32) (  -0.26,-134.30)  116.51                80
 04/26/2015   06:47:31   (   0.04,-135.36) (  -0.77,-138.89)  402.60                80
 04/27/2015   06:24:10   (   0.03,-135.38) (   0.34,-133.89)  168.71                80
 04/28/2015   18:43:00   (  -0.04,-135.39) (   0.66,-138.45)  349.34                80
 04/29/2015   18:25:00   (  -0.03,-135.41) (  -0.47,-133.46)  222.10                80
 05/01/2015   06:43:58   (   0.04,-135.44) (  -0.54,-138.05)  297.27                80
 05/02/2015   06:20:38   (   0.03,-135.45) (   0.59,-133.06)  273.52                80
 05/03/2015   18:39:27   (  -0.04,-135.45) (   0.47,-137.61)  245.91                80
 05/04/2015   18:21:27   (  -0.04,-135.46) (  -0.67,-132.61)  324.73                80