Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 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)
 10/16/2021   07:17:17   (   0.04,-137.20) (   0.21,-136.51)   79.37                80
 10/18/2021   07:05:06   (   0.04,-137.20) (   0.84,-133.55)  415.10                80
 10/18/2021   19:26:20   (  -0.04,-137.19) (   0.29,-138.70)  171.81                80
 10/20/2021   19:16:50   (  -0.04,-137.18) (  -0.35,-135.75)  163.49                80
 10/21/2021   07:38:13   (   0.04,-137.18) (  -0.78,-140.93)  426.64                80
 10/22/2021   19:04:39   (  -0.04,-137.17) (  -0.99,-132.79)  498.17                80
 10/23/2021   07:26:02   (   0.04,-137.17) (  -0.13,-137.98)   92.16                80
 10/25/2021   07:11:11   (   0.03,-137.14) (   0.51,-135.03)  241.62                80
 10/25/2021   19:32:26   (  -0.03,-137.13) (   0.62,-140.17)  346.05                80
 10/27/2021   19:20:15   (  -0.03,-137.10) (  -0.03,-137.22)   13.57                80