Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 17.  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)
 12/18/2017   06:36:12   (   0.11,-135.42) (  -0.29,-137.16)  198.32                80
 12/19/2017   06:12:51   (   0.11,-135.41) (   0.83,-132.17)  369.65                80
 12/20/2017   18:31:41   (  -0.10,-135.35) (   0.23,-136.72)  156.91                80
 12/21/2017   18:13:40   (  -0.10,-135.34) (  -0.88,-131.73)  411.24                80
 12/23/2017   06:32:39   (   0.09,-135.37) (  -0.10,-136.33)  108.64                80
 12/24/2017   06:09:19   (   0.09,-135.36) (   1.01,-131.34)  458.74                80
 12/25/2017   18:28:08   (  -0.08,-135.28) (   0.05,-135.89)   69.27                80
 12/26/2017   18:10:08   (  -0.09,-135.27) (  -1.07,-130.90)  498.13                80
 12/28/2017   06:29:06   (   0.07,-135.29) (   0.04,-135.49)   22.46                80
 12/30/2017   18:27:15   (  -0.07,-135.17) (  -0.09,-135.05)   14.05                80