Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 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)
 07/30/2021   07:07:22   (   0.01,-137.20) (   0.78,-133.52)  417.97                80
 07/30/2021   19:25:57   (  -0.02,-137.21) (   0.30,-138.68)  167.12                80
 08/01/2021   19:16:27   (  -0.01,-137.22) (  -0.36,-135.73)  169.65                80
 08/02/2021   07:35:11   (   0.01,-137.21) (  -0.78,-140.92)  421.69                80
 08/04/2021   07:23:00   (  -0.00,-137.20) (  -0.18,-137.95)   85.81                80
 08/06/2021   07:10:50   (  -0.01,-137.19) (   0.48,-135.00)  249.33                80
 08/06/2021   19:32:05   (   0.01,-137.20) (   0.66,-140.15)  336.58                80
 08/08/2021   19:19:55   (   0.00,-137.18) (  -0.00,-137.20)    2.83                80
 08/10/2021   19:10:24   (  -0.00,-137.15) (  -0.61,-134.24)  331.05                80
 08/11/2021   07:31:48   (   0.00,-137.14) (  -0.52,-139.43)  260.78                80