Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 10 4.  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)
 10/04/2021   18:54:01   (  -0.04,-137.22) (   0.78,-140.98)  428.55                80
 10/05/2021   18:36:01   (  -0.04,-137.22) (  -0.34,-135.99)  140.70                80
 10/07/2021   06:52:21   (   0.04,-137.21) (  -0.70,-140.58)  383.94                80
 10/08/2021   06:34:22   (   0.04,-137.20) (   0.42,-135.59)  184.81                80
 10/09/2021   18:50:32   (  -0.04,-137.20) (   0.64,-140.13)  335.36                80
 10/10/2021   18:32:33   (  -0.04,-137.19) (  -0.48,-135.14)  232.83                80
 10/12/2021   06:48:53   (   0.04,-137.16) (  -0.55,-139.73)  293.43                80
 10/13/2021   06:30:54   (   0.03,-137.15) (   0.57,-134.74)  274.32                80
 10/14/2021   18:47:05   (  -0.03,-137.13) (   0.44,-139.30)  247.10                80
 10/15/2021   18:29:05   (  -0.03,-137.11) (  -0.68,-134.31)  320.53                80
 10/17/2021   06:45:25   (   0.03,-137.08) (  -0.39,-138.89)  206.11                80