Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 15.  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)
 09/17/2017   06:41:30   (   0.24,-135.25) (  -0.38,-138.07)  320.83                80
 09/18/2017   06:20:49   (   0.23,-135.27) (   0.73,-133.07)  250.54                80
 09/19/2017   18:37:01   (  -0.25,-135.37) (   0.26,-137.64)  258.97                80
 09/20/2017   18:19:00   (  -0.23,-135.39) (  -0.85,-132.64)  312.84                80
 09/22/2017   06:38:00   (   0.26,-135.35) (  -0.14,-137.25)  215.79                80
 09/23/2017   06:14:38   (   0.24,-135.36) (   0.91,-132.24)  355.19                80
 09/24/2017   18:33:29   (  -0.26,-135.45) (   0.07,-136.81)  155.66                80
 09/25/2017   18:15:29   (  -0.24,-135.46) (  -1.03,-131.81)  415.56                80
 09/27/2017   06:34:28   (   0.26,-135.42) (   0.05,-136.41)  113.40                80
 09/28/2017   06:11:08   (   0.24,-135.42) (   1.15,-131.42)  456.73                80
 09/29/2017   18:29:59   (  -0.26,-135.49) (  -0.18,-135.99)   55.98                80