Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 4.  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)
 09/05/2021   07:23:11   (   0.04,-137.19) (  -0.15,-137.96)   87.96                80
 09/07/2021   07:13:41   (   0.04,-137.18) (   0.52,-135.01)  246.95                80
 09/07/2021   19:32:16   (  -0.04,-137.18) (   0.62,-140.16)  339.12                80
 09/09/2021   19:20:05   (  -0.04,-137.17) (  -0.00,-137.20)    5.93                80
 09/11/2021   19:10:35   (  -0.04,-137.14) (  -0.68,-134.26)  328.58                80
 09/12/2021   07:29:19   (   0.04,-137.12) (  -0.44,-139.44)  263.35                80
 09/14/2021   07:19:48   (   0.03,-137.09) (   0.19,-136.49)   68.99                80
 09/16/2021   07:07:36   (   0.03,-137.04) (   0.75,-133.52)  400.58                80
 09/16/2021   19:26:11   (  -0.03,-137.04) (   0.33,-138.68)  186.33                80
 09/18/2021   19:16:41   (  -0.02,-136.99) (  -0.30,-135.72)  145.12                80