Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 10 14.  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)
 10/14/2021   18:47:09   (  -0.04,-137.20) (   0.46,-139.31)  241.53                80
 10/15/2021   18:29:10   (  -0.04,-137.20) (  -0.70,-134.33)  327.50                80
 10/17/2021   06:48:10   (   0.04,-137.20) (  -0.36,-138.92)  196.28                80
 10/18/2021   06:24:52   (   0.04,-137.20) (   0.79,-133.93)  372.58                80
 10/19/2021   18:43:43   (  -0.04,-137.19) (   0.26,-138.49)  148.07                80
 10/20/2021   18:25:45   (  -0.04,-137.19) (  -0.89,-133.50)  420.57                80
 10/22/2021   06:44:45   (   0.04,-137.18) (  -0.16,-138.09)  103.89                80
 10/23/2021   06:21:26   (   0.04,-137.17) (   0.94,-133.10)  464.26                80
 10/24/2021   18:40:18   (  -0.03,-137.15) (   0.06,-137.66)   57.79                80
 10/27/2021   06:41:19   (   0.03,-137.12) (  -0.01,-137.26)   15.73                80