Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 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)
 08/13/2021   07:19:39   (   0.03,-137.19) (   0.17,-136.48)   80.20                80
 08/15/2021   07:07:28   (   0.02,-137.18) (   0.78,-133.52)  415.04                80
 08/15/2021   19:26:03   (  -0.02,-137.18) (   0.30,-138.68)  171.12                80
 08/17/2021   19:16:33   (  -0.02,-137.15) (  -0.31,-135.72)  162.55                80
 08/18/2021   07:35:17   (   0.02,-137.14) (  -0.75,-140.92)  429.29                80
 08/19/2021   19:04:22   (  -0.02,-137.12) (  -0.93,-132.76)  495.37                80
 08/20/2021   07:23:06   (   0.03,-137.11) (  -0.14,-137.96)   96.62                80
 08/22/2021   07:10:55   (   0.02,-137.08) (   0.48,-135.00)  236.18                80
 08/22/2021   19:32:10   (  -0.02,-137.07) (   0.66,-140.15)  350.41                80
 08/24/2021   19:19:59   (  -0.02,-137.04) (   0.04,-137.19)   18.07                80
 08/26/2021   19:10:28   (  -0.02,-137.00) (  -0.58,-134.23)  314.39                80