Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 3.  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)
 05/04/2021   19:19:18   (   0.04,-137.21) (   0.05,-137.21)    1.22                80
 05/06/2021   19:09:45   (   0.04,-137.21) (  -0.56,-134.24)  336.26                80
 05/07/2021   07:31:09   (  -0.03,-137.20) (  -0.53,-139.44)  255.66                80
 05/09/2021   07:16:17   (  -0.03,-137.19) (   0.14,-136.49)   80.51                80
 05/11/2021   07:04:04   (  -0.03,-137.19) (   0.76,-133.53)  415.93                80
 05/11/2021   19:25:19   (   0.03,-137.20) (   0.35,-138.69)  169.36                80
 05/13/2021   19:15:46   (   0.03,-137.18) (  -0.27,-135.73)  165.07                80
 05/14/2021   07:37:09   (  -0.02,-137.16) (  -0.82,-140.92)  427.29                80
 05/15/2021   19:03:33   (   0.02,-137.16) (  -0.90,-132.77)  498.61                80
 05/16/2021   07:24:57   (  -0.02,-137.14) (  -0.19,-137.96)   93.94                80