Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 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)
 07/19/2021   07:22:53   (   0.00,-137.21) (  -0.16,-137.95)   84.59                80
 07/21/2021   07:13:23   (  -0.01,-137.20) (   0.47,-135.00)  250.91                80
 07/21/2021   19:31:59   (   0.01,-137.20) (   0.61,-140.16)  335.08                80
 07/23/2021   19:19:48   (   0.01,-137.19) (   0.04,-137.19)    2.66                80
 07/25/2021   19:10:18   (   0.01,-137.18) (  -0.59,-134.24)  333.80                80
 07/26/2021   07:29:02   (   0.00,-137.17) (  -0.49,-139.43)  257.88                80
 07/28/2021   07:19:32   (   0.02,-137.15) (   0.14,-136.48)   75.96                80
 07/30/2021   07:07:23   (   0.02,-137.13) (   0.78,-133.53)  409.84                80
 07/30/2021   19:25:58   (  -0.02,-137.13) (   0.31,-138.68)  176.58                80