Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 1.  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)
 05/02/2021   07:10:15   (  -0.05,-137.18) (   0.39,-135.00)  247.77                80
 05/02/2021   19:31:31   (   0.05,-137.20) (   0.66,-140.17)  337.22                80
 05/04/2021   19:19:18   (   0.04,-137.19) (   0.05,-137.21)    2.19                80
 05/06/2021   19:09:45   (   0.04,-137.18) (  -0.56,-134.25)  332.99                80
 05/07/2021   07:31:09   (  -0.04,-137.16) (  -0.53,-139.44)  259.41                80
 05/09/2021   07:16:16   (  -0.03,-137.15) (   0.09,-136.48)   75.38                80
 05/11/2021   07:04:03   (  -0.03,-137.13) (   0.71,-133.52)  409.49                80
 05/11/2021   19:25:19   (   0.03,-137.14) (   0.34,-138.69)  176.03                80
 05/13/2021   19:15:46   (   0.03,-137.11) (  -0.28,-135.73)  157.09                80
 05/14/2021   07:37:08   (  -0.02,-137.08) (  -0.86,-140.91)  435.75                80