Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 7 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)
 07/10/2021   18:35:54   (   0.02,-137.18) (  -0.25,-136.03)  130.84                80
 07/12/2021   06:52:14   (  -0.01,-137.17) (  -0.79,-140.62)  393.26                80
 07/13/2021   06:34:16   (  -0.01,-137.17) (   0.36,-135.64)  175.29                80
 07/14/2021   18:50:28   (   0.00,-137.16) (   0.67,-140.20)  346.12                80
 07/15/2021   18:32:29   (   0.00,-137.15) (  -0.42,-135.20)  222.16                80
 07/17/2021   06:48:49   (  -0.00,-137.13) (  -0.61,-139.79)  302.79                80
 07/18/2021   06:30:51   (  -0.01,-137.12) (   0.54,-134.80)  265.15                80
 07/19/2021   18:47:03   (   0.01,-137.10) (   0.49,-139.36)  257.39                80
 07/20/2021   18:29:03   (   0.02,-137.08) (  -0.60,-134.36)  310.02                80
 07/22/2021   06:45:24   (  -0.02,-137.05) (  -0.42,-138.95)  216.46                80
 07/23/2021   06:27:24   (  -0.01,-137.03) (   0.67,-133.96)  350.20                80