Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 10 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)
 10/16/2021   07:17:17   (   0.05,-137.20) (   0.23,-136.51)   79.37                80
 10/18/2021   07:05:05   (   0.05,-137.20) (   0.80,-133.54)  415.49                80
 10/18/2021   19:26:21   (  -0.05,-137.20) (   0.27,-138.70)  170.99                80
 10/20/2021   19:16:50   (  -0.05,-137.20) (  -0.36,-135.75)  164.75                80
 10/21/2021   07:38:14   (   0.05,-137.20) (  -0.76,-140.94)  425.60                80
 10/22/2021   19:04:39   (  -0.05,-137.19) (  -1.00,-132.79)  499.85                80
 10/23/2021   07:26:03   (   0.04,-137.18) (  -0.12,-137.98)   90.69                80
 10/25/2021   07:11:12   (   0.04,-137.16) (   0.52,-135.03)  243.53                80
 10/25/2021   19:32:26   (  -0.04,-137.15) (   0.60,-140.18)  343.71                80
 10/27/2021   19:20:15   (  -0.03,-137.13) (   0.02,-137.21)   10.87                80
 10/29/2021   19:10:44   (  -0.03,-137.09) (  -0.64,-134.26)  322.41                80