Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 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)
 10/20/2021   19:16:50   (  -0.05,-137.19) (  -0.37,-135.75)  164.45                80
 10/21/2021   07:38:14   (   0.05,-137.19) (  -0.76,-140.94)  426.79                80
 10/22/2021   19:04:39   (  -0.05,-137.18) (  -1.01,-132.80)  499.38                80
 10/23/2021   07:26:03   (   0.05,-137.17) (  -0.11,-137.98)   92.06                80
 10/25/2021   07:11:11   (   0.04,-137.15) (   0.47,-135.02)  241.97                80
 10/25/2021   19:32:26   (  -0.04,-137.15) (   0.60,-140.18)  344.45                80
 10/27/2021   19:20:15   (  -0.03,-137.12) (   0.01,-137.21)   11.48                80
 10/29/2021   19:10:44   (  -0.03,-137.08) (  -0.65,-134.26)  321.34                80
 10/30/2021   07:32:07   (   0.03,-137.07) (  -0.47,-139.45)  270.51                80
 11/01/2021   07:17:15   (   0.02,-137.03) (   0.13,-136.49)   61.48                80