Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-A
TLE Epoch: 2021 1 19.  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)
 01/19/2021   05:39:49   (  -0.00,-137.20) (  -0.44,-139.10)  216.90                80
 01/20/2021   05:16:30   (  -0.00,-137.20) (   0.67,-134.13)  350.12                80
 01/21/2021   17:35:22   (   0.00,-137.21) (   0.32,-138.73)  172.67                80
 01/22/2021   17:17:23   (   0.00,-137.21) (  -0.78,-133.76)  393.94                80
 01/24/2021   05:36:23   (  -0.00,-137.18) (  -0.25,-138.39)  136.67                80
 01/25/2021   05:13:03   (  -0.00,-137.17) (   0.79,-133.40)  429.39                80
 01/26/2021   17:31:55   (   0.01,-137.17) (   0.20,-138.00)   95.00                80
 01/27/2021   17:13:56   (   0.00,-137.16) (  -0.91,-133.03)  470.54                80
 01/29/2021   05:32:56   (  -0.01,-137.12) (  -0.12,-137.66)   61.45                80
 01/31/2021   17:28:28   (   0.00,-137.09) (   0.07,-137.28)   22.05                80