Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 9.  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)
 05/09/2021   07:19:00   (  -0.05,-137.19) (   0.10,-136.48)   80.45                80
 05/11/2021   07:06:50   (  -0.04,-137.19) (   0.72,-133.53)  416.06                80
 05/11/2021   19:25:26   (   0.04,-137.20) (   0.37,-138.69)  169.68                80
 05/13/2021   19:15:56   (   0.04,-137.19) (  -0.25,-135.73)  164.91                80
 05/14/2021   07:34:41   (  -0.03,-137.17) (  -0.83,-140.93)  426.81                80
 05/15/2021   19:03:47   (   0.03,-137.17) (  -0.93,-132.79)  498.60                80
 05/16/2021   07:22:31   (  -0.03,-137.15) (  -0.20,-137.97)   93.31                80
 05/18/2021   07:13:01   (  -0.02,-137.13) (   0.43,-135.02)  239.56                80
 05/18/2021   19:31:37   (   0.02,-137.12) (   0.66,-140.18)  346.93                80
 05/20/2021   19:19:27   (   0.02,-137.09) (   0.03,-137.22)   14.70                80
 05/22/2021   19:09:57   (   0.01,-137.05) (  -0.61,-134.27)  317.26                80