Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 12 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)
 12/04/2021   06:55:03   (   0.04,-137.20) (  -0.70,-140.61)  388.16                80
 12/05/2021   06:31:44   (   0.04,-137.19) (   0.42,-135.62)  180.41                80
 12/06/2021   18:50:35   (  -0.03,-137.18) (   0.63,-140.17)  340.31                80
 12/07/2021   18:32:36   (  -0.03,-137.17) (  -0.50,-135.18)  228.00                80
 12/09/2021   06:51:35   (   0.02,-137.16) (  -0.55,-139.77)  297.26                80
 12/10/2021   06:28:15   (   0.02,-137.15) (   0.57,-134.78)  270.93                80
 12/11/2021   18:47:07   (  -0.02,-137.14) (   0.46,-139.33)  250.13                80
 12/12/2021   18:29:07   (  -0.02,-137.13) (  -0.66,-134.34)  317.99                80
 12/14/2021   06:48:07   (   0.02,-137.11) (  -0.38,-138.93)  207.67                80
 12/15/2021   06:24:47   (   0.01,-137.09) (   0.74,-133.94)  360.12                80
 12/16/2021   18:43:38   (  -0.01,-137.07) (   0.28,-138.50)  161.90                80
 12/17/2021   18:25:38   (  -0.00,-137.05) (  -0.79,-133.49)  405.52                80