Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2013 12 19.  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)
 12/20/2013   06:23:16   (   0.13,-135.12) (   0.42,-133.88)  141.64                80
 12/21/2013   18:44:48   (  -0.11,-135.06) (   0.64,-138.43)  384.38                80
 12/22/2013   18:21:28   (  -0.12,-135.04) (  -0.47,-133.44)  182.56                80
 12/24/2013   06:43:08   (   0.10,-135.05) (  -0.59,-138.03)  339.80                80
 12/25/2013   06:19:49   (   0.11,-135.03) (   0.58,-133.05)  226.71                80
 12/26/2013   18:41:20   (  -0.09,-134.96) (   0.47,-137.60)  300.56                80
 12/27/2013   18:18:01   (  -0.10,-134.93) (  -0.65,-132.61)  265.53                80
 12/29/2013   06:39:40   (   0.08,-134.93) (  -0.40,-137.20)  258.28                80
 12/30/2013   06:16:21   (   0.10,-134.90) (   0.72,-132.21)  307.19                80
 12/31/2013   18:37:51   (  -0.07,-134.81) (   0.38,-136.75)  221.71                80
 01/01/2014   18:14:32   (  -0.09,-134.78) (  -0.74,-131.76)  343.47                80