Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 10 20.  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)
 10/20/2021   18:25:45   (  -0.05,-137.20) (  -0.90,-133.51)  421.24                80
 10/22/2021   06:44:45   (   0.05,-137.18) (  -0.15,-138.10)  104.35                80
 10/23/2021   06:23:35   (   0.05,-137.17) (   0.95,-133.10)  463.88                49
 10/24/2021   18:40:18   (  -0.04,-137.16) (   0.05,-137.67)   56.81                80
 10/27/2021   06:41:19   (   0.04,-137.12) (   0.01,-137.26)   15.81                80
 10/29/2021   18:39:32   (  -0.03,-137.08) (  -0.11,-136.83)   29.66                80
 10/31/2021   06:58:32   (   0.03,-137.05) (  -0.92,-141.42)  497.93                80
 11/01/2021   06:35:13   (   0.02,-137.03) (   0.18,-136.43)   68.93                80
 11/02/2021   18:54:04   (  -0.02,-137.00) (   0.89,-140.98)  454.08                80