Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 9 19.  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)
 09/19/2021   06:24:51   (   0.04,-137.19) (   0.76,-133.93)  371.72                80
 09/20/2021   18:43:42   (  -0.04,-137.19) (   0.25,-138.49)  147.85                80
 09/21/2021   18:25:43   (  -0.04,-137.19) (  -0.86,-133.50)  421.08                80
 09/23/2021   06:44:43   (   0.04,-137.18) (  -0.19,-138.09)  103.64                80
 09/24/2021   06:21:24   (   0.03,-137.18) (   0.92,-133.09)  464.95                80
 09/25/2021   18:40:15   (  -0.03,-137.16) (   0.09,-137.65)   55.69                80
 09/28/2021   06:38:36   (   0.03,-137.13) (  -0.02,-137.25)   13.82                80
 09/30/2021   18:39:27   (  -0.02,-137.09) (  -0.08,-136.81)   32.04                80
 10/02/2021   06:58:28   (   0.02,-137.06) (  -0.96,-141.40)  494.67                80