Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 9 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)
 09/14/2021   06:30:58   (   0.03,-137.20) (   0.57,-134.77)  277.42                80
 09/15/2021   18:47:09   (  -0.03,-137.20) (   0.44,-139.33)  242.21                80
 09/16/2021   18:29:09   (  -0.03,-137.20) (  -0.67,-134.33)  327.03                80
 09/18/2021   06:48:11   (   0.03,-137.20) (  -0.33,-138.93)  196.54                80
 09/19/2021   06:24:51   (   0.03,-137.20) (   0.78,-133.94)  372.61                80
 09/20/2021   18:43:42   (  -0.03,-137.20) (   0.29,-138.48)  147.33                80
 09/21/2021   18:25:43   (  -0.03,-137.20) (  -0.88,-133.50)  421.75                80
 09/23/2021   06:44:43   (   0.03,-137.19) (  -0.17,-138.09)  102.12                80
 09/24/2021   06:21:24   (   0.03,-137.19) (   0.95,-133.10)  466.52                80
 09/25/2021   18:40:15   (  -0.03,-137.17) (   0.06,-137.66)   54.49                80