Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 8.  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   (   0.02,-137.22) (  -0.01,-137.31)   10.83                80
 01/12/2021   18:39:08   (  -0.01,-137.21) (  -0.11,-136.89)   37.93                80
 01/14/2021   06:55:30   (   0.01,-137.19) (  -0.94,-141.48)  488.26                80
 01/15/2021   06:37:30   (   0.00,-137.19) (   0.14,-136.48)   80.02                80
 01/16/2021   18:53:43   (   0.00,-137.18) (   0.87,-141.04)  440.11                80
 01/17/2021   18:35:44   (   0.01,-137.18) (  -0.27,-136.06)  128.10                80
 01/19/2021   06:52:05   (  -0.01,-137.15) (  -0.78,-140.65)  398.44                80
 01/20/2021   06:34:06   (  -0.01,-137.14) (   0.29,-135.65)  169.36                80
 01/21/2021   18:50:18   (   0.00,-137.13) (   0.71,-140.22)  351.94                80