Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 8.  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)
 10/09/2021   07:13:49   (   0.05,-137.21) (   0.51,-135.02)  248.55                80
 10/09/2021   19:32:25   (  -0.05,-137.21) (   0.57,-140.18)  338.10                80
 10/11/2021   19:20:14   (  -0.04,-137.19) (  -0.05,-137.23)    4.26                80
 10/13/2021   19:10:43   (  -0.04,-137.16) (  -0.67,-134.27)  329.70                80
 10/14/2021   07:32:07   (   0.04,-137.16) (  -0.45,-139.46)  261.40                80
 10/16/2021   07:17:16   (   0.03,-137.13) (   0.18,-136.50)   71.99                80
 10/18/2021   07:05:05   (   0.03,-137.10) (   0.81,-133.54)  405.24                80
 10/18/2021   19:26:20   (  -0.03,-137.10) (   0.32,-138.69)  181.88                80
 10/20/2021   19:16:49   (  -0.03,-137.06) (  -0.31,-135.74)  150.92                80
 10/21/2021   07:38:13   (   0.03,-137.06) (  -0.81,-140.93)  440.33                80