Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 11 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)
 11/20/2021   06:44:46   (   0.04,-137.21) (  -0.16,-138.11)  102.24                80
 11/21/2021   06:21:26   (   0.04,-137.20) (   0.95,-133.11)  466.28                80
 11/22/2021   18:40:18   (  -0.03,-137.20) (   0.05,-137.68)   53.67                80
 11/25/2021   06:41:18   (   0.02,-137.17) (   0.02,-137.27)   11.98                80
 11/27/2021   18:39:30   (  -0.02,-137.14) (  -0.08,-136.83)   34.86                80
 11/29/2021   06:58:29   (   0.02,-137.11) (  -0.97,-141.42)  492.22                80
 11/30/2021   06:35:10   (   0.01,-137.09) (   0.15,-136.43)   75.01                80
 12/01/2021   18:54:02   (  -0.01,-137.07) (   0.85,-141.00)  447.21                80
 12/02/2021   18:36:03   (  -0.01,-137.05) (  -0.27,-136.00)  119.60                80