Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 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)
 04/04/2021   18:42:09   (   0.04,-137.22) (   0.11,-137.65)   48.36                80
 04/07/2021   06:40:28   (  -0.04,-137.21) (  -0.04,-137.25)    4.21                80
 04/09/2021   18:35:59   (   0.04,-137.22) (  -0.03,-136.81)   46.86                80
 04/11/2021   06:57:38   (  -0.04,-137.20) (  -0.98,-141.40)  478.50                80
 04/12/2021   06:34:19   (  -0.04,-137.20) (   0.16,-136.41)   90.39                80
 04/13/2021   18:53:09   (   0.04,-137.21) (   0.90,-140.96)  428.67                80
 04/14/2021   18:35:10   (   0.04,-137.20) (  -0.25,-135.97)  139.76                80
 04/16/2021   06:54:09   (  -0.04,-137.17) (  -0.77,-140.57)  386.94                80
 04/17/2021   06:30:48   (  -0.03,-137.16) (   0.31,-135.57)  180.90                80