Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2020 12 10.  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)
 12/12/2020   06:37:58   (   0.03,-137.22) (   0.04,-137.26)    4.49                80
 12/14/2020   18:38:51   (  -0.03,-137.21) (  -0.13,-136.83)   44.37                80
 12/16/2020   06:57:51   (   0.02,-137.19) (  -0.89,-141.42)  481.12                80
 12/17/2020   06:34:32   (   0.02,-137.18) (   0.21,-136.42)   87.05                80
 12/18/2020   18:53:23   (  -0.02,-137.17) (   0.84,-140.98)  433.69                80
 12/19/2020   18:35:24   (  -0.02,-137.16) (  -0.26,-135.98)  134.42                80
 12/21/2020   06:54:24   (   0.01,-137.14) (  -0.77,-140.57)  391.49                80
 12/22/2020   06:31:05   (   0.01,-137.13) (   0.34,-135.58)  176.41                80
 12/23/2020   18:49:57   (  -0.01,-137.11) (   0.65,-140.14)  344.86                80