Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 13.  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)
 06/14/2021   19:16:12   (   0.03,-137.19) (  -0.27,-135.74)  165.01                80
 06/15/2021   07:34:57   (  -0.03,-137.19) (  -0.80,-140.94)  425.60                80
 06/16/2021   19:04:02   (   0.03,-137.18) (  -0.93,-132.79)  499.84                80
 06/17/2021   07:22:46   (  -0.02,-137.18) (  -0.19,-137.98)   90.86                80
 06/19/2021   07:13:15   (  -0.02,-137.16) (   0.42,-135.01)  243.41                80
 06/19/2021   19:31:51   (   0.02,-137.15) (   0.66,-140.17)  343.68                80
 06/21/2021   19:19:40   (   0.02,-137.12) (   0.04,-137.21)   10.33                80
 06/23/2021   19:10:09   (   0.02,-137.09) (  -0.57,-134.25)  322.01                80
 06/24/2021   07:28:53   (  -0.02,-137.08) (  -0.55,-139.44)  269.32                80
 06/26/2021   07:19:22   (  -0.01,-137.03) (   0.07,-136.48)   62.19                80