Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 9 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2021   17:13:16   (  -0.02,-137.20) (   0.40,-139.03)  208.10                80
 09/12/2021   16:55:16   (  -0.02,-137.20) (  -0.69,-134.04)  358.64                80
 09/14/2021   05:11:36   (   0.02,-137.18) (  -0.28,-138.69)  171.32                80
 09/15/2021   04:53:35   (   0.02,-137.17) (   0.75,-133.70)  394.83                80
 09/16/2021   17:09:46   (  -0.02,-137.16) (   0.22,-138.31)  130.62                80
 09/17/2021   16:51:46   (  -0.02,-137.15) (  -0.87,-133.33)  435.29                80
 09/19/2021   05:08:05   (   0.03,-137.13) (  -0.15,-137.96)   95.17                80
 09/20/2021   04:50:04   (   0.02,-137.12) (   0.94,-132.98)  470.71                80
 09/21/2021   17:06:15   (  -0.03,-137.10) (   0.09,-137.58)   54.91                80
 09/24/2021   05:04:34   (   0.02,-137.06) (  -0.01,-137.24)   20.07                80