Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 1.  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)
 06/01/2021   18:39:51   (   0.03,-137.20) (   0.12,-137.70)   56.09                80
 06/04/2021   06:38:13   (  -0.03,-137.19) (  -0.08,-137.29)   12.33                80
 06/06/2021   18:39:07   (   0.03,-137.20) (  -0.05,-136.86)   38.14                80
 06/08/2021   06:58:08   (  -0.02,-137.18) (  -0.98,-141.46)  487.80                80
 06/09/2021   06:34:50   (  -0.02,-137.17) (   0.16,-136.47)   80.45                80
 06/10/2021   18:53:42   (   0.02,-137.17) (   0.85,-141.03)  439.84                80
 06/11/2021   18:35:43   (   0.01,-137.16) (  -0.23,-136.03)  127.87                80
 06/13/2021   06:54:44   (  -0.01,-137.12) (  -0.80,-140.63)  399.52                80
 06/14/2021   06:31:25   (  -0.00,-137.11) (   0.34,-135.64)  167.73                80