Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 10.  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)
 06/12/2021   07:07:07   (  -0.03,-137.20) (   0.73,-133.54)  416.11                80
 06/12/2021   19:25:43   (   0.03,-137.20) (   0.35,-138.70)  170.49                80
 06/14/2021   19:16:12   (   0.03,-137.19) (  -0.25,-135.74)  164.96                80
 06/15/2021   07:34:57   (  -0.02,-137.19) (  -0.82,-140.93)  425.56                80
 06/16/2021   19:04:02   (   0.02,-137.18) (  -0.92,-132.79)  499.84                80
 06/17/2021   07:22:46   (  -0.02,-137.18) (  -0.21,-137.97)   90.77                80
 06/19/2021   07:13:16   (  -0.02,-137.16) (   0.47,-135.02)  243.61                80
 06/19/2021   19:31:51   (   0.02,-137.15) (   0.67,-140.17)  343.52                80
 06/21/2021   19:19:40   (   0.02,-137.13) (   0.06,-137.21)   10.42                80
 06/23/2021   19:10:10   (   0.02,-137.09) (  -0.62,-134.26)  322.24                80
 06/24/2021   07:28:54   (  -0.01,-137.08) (  -0.50,-139.45)  269.02                80