Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2017 12 2.  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)
 12/03/2017   18:39:27   (  -0.16,-135.32) (   0.37,-137.60)  259.59                80
 12/04/2017   18:21:29   (  -0.16,-135.34) (  -0.79,-132.61)  311.07                80
 12/06/2017   06:40:29   (   0.15,-135.40) (  -0.28,-137.20)  206.53                80
 12/07/2017   06:17:10   (   0.15,-135.40) (   0.87,-132.22)  363.09                80
 12/08/2017   18:36:02   (  -0.14,-135.37) (   0.16,-136.77)  159.24                80
 12/09/2017   18:18:02   (  -0.14,-135.38) (  -0.93,-131.78)  410.93                80
 12/11/2017   06:37:04   (   0.13,-135.44) (  -0.08,-136.38)  106.57                80
 12/12/2017   06:13:44   (   0.14,-135.45) (   1.02,-131.38)  462.71                80
 12/13/2017   18:32:35   (  -0.12,-135.41) (   0.01,-135.94)   60.80                80
 12/16/2017   06:33:37   (   0.12,-135.47) (   0.08,-135.54)    9.13                80