Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 30.  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)
 01/31/2021   18:46:02   (   0.02,-137.26) (   0.31,-138.54)  146.69                80
 02/01/2021   18:22:43   (   0.02,-137.26) (  -0.81,-133.55)  422.99                80
 02/03/2021   06:44:23   (  -0.02,-137.25) (  -0.22,-138.15)  101.80                80
 02/04/2021   06:21:03   (  -0.02,-137.25) (   0.90,-133.15)  467.35                80
 02/05/2021   18:39:55   (   0.02,-137.26) (   0.09,-137.72)   51.04                80
 02/08/2021   06:40:56   (  -0.00,-137.24) (   0.00,-137.32)    9.22                80
 02/10/2021   18:39:06   (   0.00,-137.23) (  -0.07,-136.87)   40.00                80
 02/12/2021   06:58:07   (  -0.00,-137.20) (  -0.94,-141.47)  486.38                80
 02/13/2021   06:34:47   (  -0.00,-137.19) (   0.19,-136.48)   81.89                80