Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 7.  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)
 01/07/2021   18:42:32   (  -0.00,-137.23) (   0.09,-137.70)   53.61                80
 01/10/2021   06:40:55   (   0.02,-137.22) (  -0.01,-137.31)   10.33                80
 01/12/2021   18:39:09   (  -0.01,-137.22) (  -0.12,-136.89)   38.90                80
 01/14/2021   06:55:30   (   0.01,-137.20) (  -0.93,-141.48)  487.21                80
 01/15/2021   06:37:30   (   0.00,-137.20) (   0.14,-136.48)   81.16                80
 01/16/2021   18:53:43   (  -0.00,-137.20) (   0.86,-141.05)  438.79                80
 01/17/2021   18:35:44   (   0.00,-137.19) (  -0.27,-136.06)  129.51                80
 01/19/2021   06:52:05   (  -0.00,-137.17) (  -0.78,-140.65)  396.89                80
 01/20/2021   06:34:07   (  -0.00,-137.16) (   0.36,-135.67)  171.03                80