Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 3.  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)
 09/03/2021   07:35:22   (   0.03,-137.20) (  -0.75,-140.92)  423.24                80
 09/05/2021   07:23:11   (   0.04,-137.19) (  -0.14,-137.96)   87.98                80
 09/07/2021   07:13:40   (   0.04,-137.18) (   0.48,-135.00)  246.90                80
 09/07/2021   19:32:16   (  -0.04,-137.18) (   0.60,-140.16)  339.13                80
 09/09/2021   19:20:05   (  -0.04,-137.16) (  -0.01,-137.20)    5.12                80
 09/11/2021   19:10:34   (  -0.03,-137.14) (  -0.63,-134.25)  328.49                80
 09/12/2021   07:29:18   (   0.03,-137.12) (  -0.48,-139.43)  263.44                80
 09/14/2021   07:19:47   (   0.03,-137.08) (   0.14,-136.48)   68.87                80
 09/16/2021   07:07:36   (   0.02,-137.04) (   0.77,-133.52)  400.49                80
 09/16/2021   19:26:12   (  -0.02,-137.04) (   0.31,-138.68)  186.37                80