Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 17.  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)
 01/17/2021   18:35:44   (   0.00,-137.22) (  -0.24,-136.05)  132.84                80
 01/19/2021   06:54:46   (  -0.00,-137.21) (  -0.75,-140.66)  392.37                80
 01/20/2021   06:31:26   (  -0.00,-137.21) (   0.33,-135.66)  176.55                80
 01/21/2021   18:50:19   (   0.01,-137.22) (   0.67,-140.23)  342.32                80
 01/22/2021   18:32:19   (   0.01,-137.22) (  -0.41,-135.23)  226.23                80
 01/24/2021   06:51:22   (  -0.01,-137.20) (  -0.58,-139.84)  300.19                80
 01/25/2021   06:28:02   (  -0.01,-137.19) (   0.50,-134.83)  267.77                80
 01/26/2021   18:46:54   (   0.01,-137.18) (   0.50,-139.40)  252.67                80
 01/27/2021   18:28:55   (   0.01,-137.17) (  -0.58,-134.40)  314.82                80
 01/29/2021   06:47:56   (  -0.01,-137.14) (  -0.46,-139.00)  213.02                80
 01/30/2021   06:24:38   (  -0.01,-137.12) (   0.68,-134.01)  354.06                80