Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2020 12 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2020   07:17:11   (   0.03,-137.23) (   0.17,-136.49)   84.09                80
 12/18/2020   07:05:00   (   0.02,-137.23) (   0.83,-133.54)  420.32                80
 12/18/2020   19:28:55   (  -0.02,-137.23) (   0.29,-138.69)  166.19                80
 12/20/2020   19:14:03   (  -0.02,-137.23) (  -0.32,-135.73)  169.93                80
 12/21/2020   07:38:07   (   0.02,-137.23) (  -0.79,-140.92)  420.18                80
 12/23/2020   07:25:56   (   0.02,-137.22) (  -0.12,-137.97)   84.51                80
 12/25/2020   07:11:04   (   0.02,-137.21) (   0.50,-135.01)  250.67                80
 12/25/2020   19:32:19   (  -0.02,-137.20) (   0.63,-140.16)  336.35                80
 12/27/2020   19:20:07   (  -0.01,-137.18) (   0.01,-137.20)    2.70                80