Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 8 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)
 08/01/2021   06:38:33   (   0.00,-137.20) (  -0.03,-137.29)    9.86                80
 08/03/2021   18:39:27   (   0.00,-137.21) (  -0.11,-136.86)   40.57                80
 08/05/2021   06:55:46   (  -0.00,-137.19) (  -0.98,-141.44)  485.02                80
 08/06/2021   06:37:48   (  -0.01,-137.18) (   0.18,-136.46)   83.51                80
 08/07/2021   18:56:40   (   0.01,-137.18) (   0.84,-141.02)  436.70                80
 08/08/2021   18:33:21   (  -0.00,-137.17) (  -0.26,-136.02)  131.06                80
 08/10/2021   06:55:01   (   0.01,-137.14) (  -0.77,-140.61)  395.61                80
 08/11/2021   06:31:41   (   0.01,-137.13) (   0.33,-135.62)  172.02                80
 08/12/2021   18:50:34   (  -0.01,-137.12) (   0.68,-140.18)  349.09                80
 08/13/2021   18:32:34   (  -0.01,-137.10) (  -0.42,-135.18)  218.26                80