Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 10.  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)
 01/10/2021   06:40:55   (   0.01,-137.23) (   0.01,-137.32)    9.10                80
 01/12/2021   18:36:28   (  -0.02,-137.25) (  -0.08,-136.88)   41.91                80
 01/14/2021   06:58:10   (   0.02,-137.24) (  -0.91,-141.49)  483.33                80
 01/15/2021   06:37:31   (   0.02,-137.24) (   0.16,-136.49)   85.92                80
 01/16/2021   18:53:43   (   0.02,-137.26) (   0.84,-141.05)  431.89                80
 01/17/2021   18:33:03   (   0.02,-137.26) (  -0.23,-136.05)  137.11                80
 01/19/2021   06:54:46   (  -0.02,-137.24) (  -0.76,-140.66)  388.42                80
 01/20/2021   06:31:26   (  -0.02,-137.24) (   0.32,-135.66)  180.21                80
 01/21/2021   18:50:19   (   0.02,-137.25) (   0.68,-140.22)  339.24                80
 01/22/2021   18:32:20   (  -0.00,-137.24) (  -0.46,-135.24)  228.45                80