Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 18.  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)
 01/19/2021   06:54:46   (  -0.00,-137.21) (  -0.75,-140.66)  392.93                80
 01/20/2021   06:31:26   (  -0.00,-137.21) (   0.33,-135.66)  175.93                80
 01/21/2021   18:50:19   (   0.00,-137.22) (   0.67,-140.23)  342.94                80
 01/22/2021   18:32:20   (   0.01,-137.21) (  -0.46,-135.24)  225.56                80
 01/24/2021   06:51:22   (  -0.01,-137.19) (  -0.58,-139.83)  301.02                80
 01/25/2021   06:28:02   (  -0.01,-137.18) (   0.50,-134.83)  266.89                80
 01/26/2021   18:46:54   (   0.01,-137.17) (   0.50,-139.40)  253.58                80
 01/27/2021   18:28:55   (   0.01,-137.16) (  -0.57,-134.40)  313.88                80
 01/29/2021   06:47:57   (  -0.01,-137.13) (  -0.41,-139.01)  214.12                80
 01/30/2021   06:24:38   (  -0.01,-137.11) (   0.67,-134.01)  352.90                80
 01/31/2021   18:43:30   (   0.01,-137.09) (   0.33,-138.58)  168.82                80