Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2019 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2019   18:42:57   (   0.02,-137.21) (   0.32,-138.49)  146.14                80
 12/23/2019   18:24:58   (   0.03,-137.21) (  -0.81,-133.50)  422.34                80
 12/25/2019   06:41:20   (  -0.03,-137.19) (  -0.22,-138.10)  103.36                80
 12/26/2019   06:23:21   (  -0.03,-137.18) (   0.91,-133.11)  464.82                80
 12/27/2019   18:39:34   (   0.04,-137.17) (   0.12,-137.67)   56.05                80
 12/30/2019   06:37:55   (  -0.05,-137.13) (  -0.08,-137.26)   14.43                80
 01/01/2020   18:38:49   (   0.05,-137.10) (  -0.03,-136.83)   31.98                80
 01/03/2020   06:55:10   (  -0.05,-137.07) (  -1.00,-141.42)  495.18                80
 01/04/2020   06:37:11   (  -0.05,-137.06) (   0.07,-136.42)   72.11                80