Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 30.  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)
 05/30/2021   06:41:38   (  -0.04,-137.18) (  -0.24,-138.13)  107.01                80
 05/31/2021   06:23:38   (  -0.04,-137.18) (   0.84,-133.12)  461.56                80
 06/01/2021   18:39:50   (   0.03,-137.19) (   0.16,-137.69)   57.34                80
 06/04/2021   06:38:13   (  -0.03,-137.16) (  -0.07,-137.29)   15.13                80
 06/06/2021   18:39:07   (   0.03,-137.16) (  -0.06,-136.87)   33.81                80
 06/08/2021   06:58:08   (  -0.02,-137.13) (  -0.97,-141.46)  493.43                80
 06/09/2021   06:34:49   (  -0.02,-137.11) (   0.11,-136.46)   74.15                80
 06/10/2021   18:53:41   (   0.02,-137.10) (   0.90,-141.02)  446.83                80
 06/11/2021   18:35:43   (   0.01,-137.09) (  -0.24,-136.03)  120.26                80