Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 22.  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)
 07/23/2021   19:22:28   (   0.00,-137.19) (  -0.01,-137.20)    1.62                80
 07/25/2021   19:10:18   (  -0.00,-137.17) (  -0.65,-134.25)  333.44                80
 07/26/2021   07:29:02   (   0.01,-137.16) (  -0.49,-139.43)  258.70                80
 07/28/2021   07:19:32   (   0.02,-137.14) (   0.15,-136.48)   75.22                80
 07/30/2021   07:07:22   (   0.01,-137.12) (   0.80,-133.53)  409.00                80
 07/30/2021   19:25:57   (  -0.02,-137.12) (   0.34,-138.67)  177.04                80
 08/01/2021   19:16:27   (  -0.01,-137.09) (  -0.31,-135.72)  156.12                80
 08/02/2021   07:35:11   (   0.01,-137.08) (  -0.83,-140.91)  436.07                80
 08/03/2021   19:04:16   (   0.00,-137.06) (  -0.90,-132.76)  488.68                80
 08/04/2021   07:25:40   (  -0.02,-137.04) (  -0.23,-137.94)  103.48                80