Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 20.  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)
 08/20/2021   07:23:07   (   0.02,-137.17) (  -0.13,-137.96)   90.19                80
 08/22/2021   07:13:36   (   0.03,-137.15) (   0.48,-135.00)  243.75                80
 08/22/2021   19:32:11   (  -0.03,-137.15) (   0.59,-140.16)  342.54                80
 08/24/2021   19:20:00   (  -0.03,-137.13) (  -0.03,-137.20)    8.60                80
 08/26/2021   19:10:29   (  -0.03,-137.10) (  -0.65,-134.25)  325.18                80
 08/27/2021   07:31:53   (   0.03,-137.09) (  -0.48,-139.43)  266.43                80
 08/29/2021   07:17:02   (   0.03,-137.06) (   0.15,-136.47)   66.54                80
 08/31/2021   07:04:51   (   0.03,-137.02) (   0.78,-133.52)  398.73                80
 08/31/2021   19:26:07   (  -0.03,-137.02) (   0.30,-138.68)  188.35                80
 09/02/2021   19:16:35   (  -0.02,-136.97) (  -0.27,-135.71)  143.06                80