Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2017 11 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/01/2017   06:43:55   (   0.17,-135.33) (  -0.46,-138.03)  308.94                80
 12/02/2017   06:20:36   (   0.17,-135.34) (   0.69,-133.05)  261.38                80
 12/03/2017   18:39:27   (  -0.16,-135.32) (   0.35,-137.60)  260.09                80
 12/04/2017   18:21:28   (  -0.16,-135.33) (  -0.75,-132.60)  310.48                80
 12/06/2017   06:40:29   (   0.15,-135.39) (  -0.26,-137.21)  206.64                80
 12/07/2017   06:17:11   (   0.15,-135.40) (   0.89,-132.22)  362.87                80
 12/08/2017   18:36:02   (  -0.14,-135.36) (   0.15,-136.78)  160.26                80
 12/09/2017   18:18:03   (  -0.14,-135.37) (  -0.95,-131.78)  409.83                80
 12/11/2017   06:37:04   (   0.13,-135.44) (  -0.06,-136.38)  107.20                80
 12/12/2017   06:13:44   (   0.14,-135.44) (   1.04,-131.38)  462.00                80
 12/13/2017   18:32:36   (  -0.13,-135.39) (  -0.00,-135.94)   62.25                80