Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 14.  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)
 09/14/2021   07:17:07   (   0.04,-137.20) (   0.17,-136.48)   81.70                80
 09/16/2021   07:04:56   (   0.03,-137.20) (   0.79,-133.52)  418.03                80
 09/16/2021   19:26:12   (  -0.03,-137.20) (   0.28,-138.68)  168.86                80
 09/18/2021   19:16:41   (  -0.03,-137.20) (  -0.35,-135.73)  167.33                80
 09/19/2021   07:38:05   (   0.03,-137.20) (  -0.77,-140.92)  422.36                80
 09/21/2021   07:25:54   (   0.03,-137.20) (  -0.14,-137.96)   86.35                80
 09/23/2021   07:11:03   (   0.03,-137.19) (   0.50,-135.00)  249.28                80
 09/23/2021   19:32:18   (  -0.03,-137.19) (   0.63,-140.15)  337.98                80
 09/25/2021   19:20:07   (  -0.03,-137.17) (  -0.01,-137.20)    3.54                80
 09/27/2021   19:10:36   (  -0.02,-137.15) (  -0.65,-134.24)  331.01                80