Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 4.  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   (   0.00,-137.20) (  -0.14,-137.96)   86.52                80
 08/06/2021   07:13:30   (  -0.00,-137.18) (   0.46,-135.00)  248.28                80
 08/06/2021   19:32:06   (   0.00,-137.19) (   0.62,-140.16)  337.32                80
 08/08/2021   19:22:35   (  -0.00,-137.17) (   0.02,-137.20)    4.04                80
 08/10/2021   19:07:45   (  -0.01,-137.14) (  -0.64,-134.25)  329.62                80
 08/11/2021   07:31:49   (   0.01,-137.13) (  -0.49,-139.43)  262.68                80
 08/13/2021   07:16:59   (   0.01,-137.09) (   0.17,-136.49)   70.06                80
 08/15/2021   07:07:28   (   0.01,-137.06) (   0.78,-133.52)  402.01                80
 08/15/2021   19:26:03   (  -0.01,-137.05) (   0.36,-138.67)  184.32                80
 08/17/2021   19:16:32   (   0.00,-137.00) (  -0.25,-135.71)  146.65                80