Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 29.  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)
 04/30/2021   07:25:08   (  -0.05,-137.19) (  -0.19,-137.97)   87.77                80
 05/02/2021   07:10:15   (  -0.04,-137.19) (   0.41,-135.00)  247.70                80
 05/02/2021   19:31:30   (   0.04,-137.20) (   0.70,-140.16)  337.35                80
 05/04/2021   19:19:18   (   0.03,-137.19) (   0.03,-137.21)    2.28                80
 05/06/2021   19:09:45   (   0.03,-137.18) (  -0.58,-134.25)  333.06                80
 05/07/2021   07:31:09   (  -0.03,-137.16) (  -0.51,-139.44)  259.17                80
 05/09/2021   07:16:16   (  -0.03,-137.15) (   0.11,-136.48)   75.69                80
 05/11/2021   07:04:03   (  -0.02,-137.13) (   0.73,-133.53)  409.92                80
 05/11/2021   19:25:19   (   0.02,-137.14) (   0.32,-138.69)  175.70                80
 05/13/2021   19:15:46   (   0.02,-137.11) (  -0.30,-135.73)  157.54                80