Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 3.  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)
 04/04/2021   19:07:22   (   0.05,-137.18) (  -0.58,-134.24)  334.68                80
 04/05/2021   07:28:46   (  -0.05,-137.15) (  -0.53,-139.43)  258.87                80
 04/07/2021   07:19:14   (  -0.04,-137.11) (   0.10,-136.47)   72.12                80
 04/09/2021   07:07:02   (  -0.04,-137.06) (   0.73,-133.52)  403.06                80
 04/09/2021   19:25:37   (   0.04,-137.06) (   0.39,-138.67)  182.83                80
 04/11/2021   19:16:05   (   0.04,-137.01) (  -0.24,-135.72)  147.80                80
 04/12/2021   07:34:49   (  -0.04,-136.98) (  -0.86,-140.91)  445.99                80
 04/13/2021   19:03:53   (   0.04,-136.96) (  -0.88,-132.76)  477.84                80
 04/14/2021   07:22:36   (  -0.04,-136.93) (  -0.29,-137.94)  116.17                80
 04/16/2021   07:13:04   (  -0.04,-136.86) (   0.36,-134.99)  212.92                80
 04/16/2021   19:31:38   (   0.04,-136.86) (   0.76,-140.14)  373.60                80