Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2020 12 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)
 12/31/2020   06:47:42   (   0.01,-137.21) (  -0.37,-138.95)  198.22                80
 01/01/2021   06:24:23   (   0.01,-137.21) (   0.75,-133.97)  369.94                80
 01/02/2021   18:45:56   (   0.00,-137.21) (   0.27,-138.53)  150.04                80
 01/03/2021   18:22:36   (   0.00,-137.20) (  -0.81,-133.53)  418.02                80
 01/05/2021   06:44:18   (  -0.01,-137.17) (  -0.24,-138.12)  108.73                80
 01/06/2021   06:20:59   (  -0.01,-137.16) (   0.89,-133.13)  458.73                80
 01/07/2021   18:39:51   (   0.00,-137.15) (   0.12,-137.70)   62.62                80
 01/10/2021   06:40:54   (   0.02,-137.09) (  -0.03,-137.31)   24.23                80
 01/12/2021   18:39:07   (  -0.01,-137.04) (  -0.04,-136.87)   19.70                80