Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 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)
 08/04/2021   07:23:01   (   0.01,-137.20) (  -0.17,-137.96)   86.57                80
 08/06/2021   07:13:31   (  -0.00,-137.18) (   0.49,-135.01)  248.24                80
 08/06/2021   19:32:05   (   0.00,-137.19) (   0.65,-140.15)  337.36                80
 08/08/2021   19:19:55   (  -0.00,-137.17) (  -0.01,-137.20)    3.96                80
 08/10/2021   19:10:24   (  -0.01,-137.14) (  -0.61,-134.24)  329.56                80
 08/11/2021   07:31:49   (   0.01,-137.13) (  -0.46,-139.44)  262.72                80
 08/13/2021   07:16:58   (   0.01,-137.09) (   0.14,-136.48)   69.94                80
 08/15/2021   07:04:47   (   0.01,-137.05) (   0.75,-133.52)  401.96                80
 08/15/2021   19:26:03   (  -0.01,-137.05) (   0.33,-138.68)  184.40                80