Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 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)
 07/03/2021   07:22:50   (  -0.01,-137.18) (  -0.17,-137.96)   89.47                80
 07/05/2021   07:13:19   (  -0.01,-137.16) (   0.46,-135.01)  245.60                80
 07/05/2021   19:31:54   (   0.01,-137.16) (   0.66,-140.15)  340.44                80
 07/07/2021   19:19:43   (   0.02,-137.14) (   0.03,-137.20)    6.34                80
 07/09/2021   19:10:12   (   0.02,-137.11) (  -0.61,-134.24)  326.85                80
 07/10/2021   07:31:35   (  -0.02,-137.10) (  -0.51,-139.43)  265.07                80
 07/12/2021   07:16:44   (  -0.01,-137.06) (   0.14,-136.47)   67.22                80
 07/14/2021   07:04:33   (  -0.01,-137.02) (   0.72,-133.50)  399.05                80
 07/14/2021   19:25:48   (   0.01,-137.01) (   0.34,-138.66)  187.82                80