Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 12.  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)
 12/12/2021   18:26:27   (  -0.04,-137.22) (  -0.65,-134.34)  327.24                80
 12/14/2021   06:48:07   (   0.03,-137.21) (  -0.34,-138.94)  196.52                80
 12/15/2021   06:24:48   (   0.04,-137.21) (   0.78,-133.95)  372.49                80
 12/16/2021   18:43:39   (  -0.03,-137.21) (   0.25,-138.51)  147.19                80
 12/17/2021   18:25:40   (  -0.03,-137.21) (  -0.88,-133.51)  421.49                80
 12/19/2021   06:44:39   (   0.03,-137.19) (  -0.17,-138.10)  103.62                80
 12/20/2021   06:21:20   (   0.02,-137.18) (   0.95,-133.11)  464.54                80
 12/21/2021   18:40:11   (  -0.02,-137.17) (   0.07,-137.67)   56.57                80
 12/24/2021   06:41:11   (   0.01,-137.13) (   0.00,-137.27)   14.94                80