Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 24.  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)
 09/25/2021   19:22:49   (  -0.04,-137.22) (  -0.07,-137.22)    3.39                80
 09/27/2021   19:10:38   (  -0.04,-137.22) (  -0.66,-134.25)  336.64                80
 09/28/2021   07:32:02   (   0.04,-137.21) (  -0.46,-139.44)  254.32                80
 09/30/2021   07:17:12   (   0.03,-137.20) (   0.19,-136.49)   80.57                80
 10/02/2021   07:05:01   (   0.03,-137.18) (   0.79,-133.53)  414.86                80
 10/02/2021   19:26:17   (  -0.03,-137.18) (   0.30,-138.69)  171.71                80
 10/04/2021   19:16:46   (  -0.02,-137.16) (  -0.31,-135.73)  162.01                80
 10/05/2021   07:38:11   (   0.02,-137.15) (  -0.76,-140.93)  429.28                80
 10/06/2021   19:04:36   (  -0.02,-137.13) (  -0.97,-132.78)  495.08                80
 10/07/2021   07:26:00   (   0.02,-137.12) (  -0.15,-137.97)   96.39                80