Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 18.  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)
 08/18/2021   07:35:17   (   0.02,-137.19) (  -0.80,-140.91)  424.24                80
 08/20/2021   07:23:07   (   0.02,-137.17) (  -0.12,-137.97)   89.82                80
 08/22/2021   07:10:56   (   0.03,-137.15) (   0.49,-135.01)  244.42                80
 08/22/2021   19:32:12   (  -0.03,-137.15) (   0.58,-140.17)  341.94                80
 08/24/2021   19:20:01   (  -0.03,-137.14) (  -0.04,-137.21)    8.10                80
 08/26/2021   19:10:30   (  -0.03,-137.11) (  -0.66,-134.25)  326.39                80
 08/27/2021   07:31:53   (   0.03,-137.10) (  -0.46,-139.44)  264.91                80
 08/29/2021   07:17:02   (   0.02,-137.08) (   0.16,-136.48)   68.33                80
 08/31/2021   07:04:52   (   0.02,-137.04) (   0.79,-133.52)  400.85                80
 08/31/2021   19:26:06   (  -0.01,-137.03) (   0.35,-138.67)  186.29                80