Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 2 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)
 02/10/2021   18:36:26   (   0.03,-137.23) (  -0.04,-136.87)   40.91                80
 02/12/2021   06:55:26   (  -0.03,-137.22) (  -0.98,-141.46)  483.54                80
 02/13/2021   06:37:27   (  -0.03,-137.22) (   0.14,-136.47)   85.92                80
 02/14/2021   18:53:38   (   0.02,-137.24) (   0.86,-141.03)  432.22                80
 02/15/2021   18:32:58   (   0.02,-137.24) (  -0.27,-136.04)  137.06                80
 02/17/2021   06:51:58   (  -0.02,-137.22) (  -0.80,-140.62)  387.93                80
 02/18/2021   06:33:58   (  -0.02,-137.22) (   0.33,-135.63)  180.95                80
 02/19/2021   18:50:10   (   0.02,-137.22) (   0.68,-140.19)  338.47                80
 02/20/2021   18:32:10   (   0.01,-137.22) (  -0.44,-135.20)  229.82                80
 02/22/2021   06:48:29   (  -0.00,-137.19) (  -0.61,-139.79)  296.76                80