Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 5.  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)
 06/06/2021   18:39:07   (   0.03,-137.18) (  -0.04,-136.86)   36.89                80
 06/08/2021   06:55:28   (  -0.03,-137.16) (  -1.00,-141.45)  489.38                80
 06/09/2021   06:37:29   (  -0.03,-137.15) (   0.14,-136.47)   78.58                80
 06/10/2021   18:53:42   (   0.03,-137.14) (   0.87,-141.03)  442.26                80
 06/11/2021   18:35:42   (   0.02,-137.13) (  -0.21,-136.03)  125.16                80
 06/13/2021   06:52:04   (  -0.02,-137.09) (  -0.82,-140.62)  402.59                80
 06/14/2021   06:34:05   (  -0.02,-137.07) (   0.32,-135.64)  164.38                80
 06/15/2021   18:50:17   (   0.01,-137.05) (   0.69,-140.20)  357.77                80
 06/16/2021   18:32:18   (   0.01,-137.03) (  -0.39,-135.20)  208.96                80
 06/18/2021   06:48:39   (  -0.01,-136.99) (  -0.62,-139.79)  319.55                80