Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 5.  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)
 09/07/2021   07:13:40   (   0.04,-137.18) (   0.49,-135.01)  247.36                80
 09/07/2021   19:32:16   (  -0.04,-137.19) (   0.59,-140.17)  338.75                80
 09/09/2021   19:20:05   (  -0.04,-137.17) (  -0.03,-137.21)    4.25                80
 09/11/2021   19:10:34   (  -0.04,-137.15) (  -0.65,-134.25)  329.46                80
 09/12/2021   07:29:18   (   0.04,-137.13) (  -0.47,-139.44)  262.28                80
 09/14/2021   07:19:47   (   0.03,-137.10) (   0.15,-136.48)   70.28                80
 09/16/2021   07:07:36   (   0.03,-137.06) (   0.78,-133.52)  402.15                80
 09/16/2021   19:26:12   (  -0.03,-137.05) (   0.30,-138.68)  184.80                80
 09/18/2021   19:16:40   (  -0.02,-137.01) (  -0.27,-135.71)  146.94                80
 09/19/2021   07:38:04   (   0.02,-136.99) (  -0.84,-140.90)  445.05                80