Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 23.  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)
 08/24/2021   19:22:41   (  -0.03,-137.20) (  -0.04,-137.21)    0.62                80
 08/26/2021   19:10:30   (  -0.03,-137.21) (  -0.66,-134.25)  336.56                80
 08/27/2021   07:29:13   (   0.04,-137.20) (  -0.46,-139.44)  254.23                80
 08/29/2021   07:19:42   (   0.03,-137.20) (   0.16,-136.48)   81.83                80
 08/31/2021   07:07:32   (   0.03,-137.19) (   0.79,-133.52)  417.00                80
 08/31/2021   19:26:07   (  -0.03,-137.19) (   0.29,-138.68)  169.38                80
 09/02/2021   19:16:36   (  -0.03,-137.17) (  -0.34,-135.72)  164.86                80
 09/03/2021   07:38:00   (   0.03,-137.16) (  -0.77,-140.91)  426.29                80
 09/04/2021   19:04:25   (  -0.02,-137.15) (  -0.97,-132.77)  498.62                80
 09/05/2021   07:25:49   (   0.02,-137.14) (  -0.14,-137.95)   92.62                80