Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 27.  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)
 04/27/2021   06:23:58   (  -0.05,-137.19) (   0.67,-133.92)  373.22                80
 04/28/2021   18:42:51   (   0.05,-137.21) (   0.33,-138.48)  145.45                80
 04/29/2021   18:24:53   (   0.04,-137.20) (  -0.78,-133.49)  422.96                80
 05/01/2021   06:43:55   (  -0.04,-137.18) (  -0.23,-138.09)  103.74                80
 05/02/2021   06:20:37   (  -0.03,-137.17) (   0.88,-133.10)  464.21                80
 05/03/2021   18:39:30   (   0.03,-137.17) (   0.11,-137.67)   55.73                80
 05/06/2021   06:40:33   (  -0.02,-137.14) (  -0.07,-137.26)   14.91                80
 05/08/2021   18:38:48   (   0.02,-137.13) (  -0.06,-136.84)   32.96                80
 05/10/2021   06:57:49   (  -0.02,-137.10) (  -1.01,-141.43)  494.55                80