Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 26.  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)
 06/26/2021   18:25:29   (   0.03,-137.20) (  -0.77,-133.53)  417.88                80
 06/28/2021   06:41:50   (  -0.02,-137.19) (  -0.23,-138.13)  107.36                80
 06/29/2021   06:23:51   (  -0.02,-137.18) (   0.86,-133.13)  461.36                80
 06/30/2021   18:40:04   (   0.02,-137.19) (   0.11,-137.70)   58.25                80
 07/03/2021   06:38:25   (  -0.02,-137.17) (  -0.07,-137.29)   15.22                80
 07/05/2021   18:39:19   (   0.02,-137.15) (  -0.05,-136.86)   32.85                80
 07/07/2021   06:58:19   (  -0.02,-137.13) (  -1.00,-141.45)  493.43                80
 07/08/2021   06:35:01   (  -0.02,-137.11) (   0.15,-136.47)   74.00                80
 07/09/2021   18:53:53   (   0.01,-137.09) (   0.88,-141.03)  448.20                80