Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 1 30.  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)
 01/30/2021   19:10:25   (   0.00,-137.23) (  -0.62,-134.23)  341.39                80
 01/31/2021   07:31:49   (  -0.00,-137.23) (  -0.50,-139.42)  249.71                80
 02/02/2021   07:16:58   (  -0.00,-137.24) (   0.17,-136.47)   87.41                80
 02/02/2021   19:38:13   (   0.00,-137.25) (   0.96,-141.62)  497.89                80
 02/04/2021   07:04:46   (  -0.00,-137.24) (   0.77,-133.51)  423.86                80
 02/04/2021   19:26:02   (   0.00,-137.25) (   0.29,-138.67)  161.60                80
 02/06/2021   19:16:30   (   0.01,-137.24) (  -0.32,-135.71)  173.89                80
 02/07/2021   07:37:54   (  -0.01,-137.23) (  -0.79,-140.90)  417.52                80
 02/09/2021   07:25:42   (  -0.01,-137.22) (  -0.18,-137.94)   82.87                80
 02/11/2021   07:10:50   (  -0.01,-137.20) (   0.44,-134.98)  251.49                80
 02/11/2021   19:32:06   (   0.01,-137.20) (   0.63,-140.15)  334.66                80