Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 16.  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)
 08/17/2021   19:16:33   (  -0.02,-137.19) (  -0.33,-135.73)  166.92                80
 08/18/2021   07:35:17   (   0.02,-137.19) (  -0.80,-140.91)  424.17                80
 08/20/2021   07:23:07   (   0.02,-137.17) (  -0.12,-137.97)   89.73                80
 08/22/2021   07:10:56   (   0.03,-137.16) (   0.49,-135.01)  244.57                80
 08/22/2021   19:32:11   (  -0.03,-137.15) (   0.64,-140.15)  341.94                80
 08/24/2021   19:20:01   (  -0.03,-137.14) (  -0.04,-137.21)    8.05                80
 08/26/2021   19:10:30   (  -0.03,-137.11) (  -0.66,-134.25)  326.41                80
 08/27/2021   07:31:53   (   0.02,-137.11) (  -0.47,-139.44)  264.71                80
 08/29/2021   07:17:02   (   0.02,-137.08) (   0.16,-136.48)   68.54                80