Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 3 18.  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)
 03/19/2021   19:07:26   (   0.04,-137.20) (  -0.57,-134.21)  339.46                80
 03/20/2021   07:31:30   (  -0.04,-137.19) (  -0.49,-139.42)  252.11                80
 03/22/2021   07:16:38   (  -0.04,-137.18) (   0.11,-136.46)   81.71                80
 03/24/2021   07:04:26   (  -0.03,-137.15) (   0.72,-133.50)  414.85                80
 03/24/2021   19:25:42   (   0.03,-137.15) (   0.34,-138.66)  171.73                80
 03/26/2021   19:16:10   (   0.03,-137.12) (  -0.27,-135.71)  160.77                80
 03/27/2021   07:34:54   (  -0.03,-137.11) (  -0.84,-140.90)  431.24                80
 03/28/2021   19:03:58   (   0.03,-137.09) (  -0.88,-132.75)  492.86                80
 03/29/2021   07:22:42   (  -0.03,-137.07) (  -0.23,-137.94)   99.29                80
 03/31/2021   07:10:30   (  -0.03,-137.03) (   0.39,-134.98)  232.01                80
 03/31/2021   19:31:46   (   0.03,-137.02) (   0.67,-140.15)  355.27                80