Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.39,-128.03)   19.53                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.02,-125.07)  360.92                80
 10/20/2021   06:55:09   (   0.35,-128.27) (  -0.10,-130.26)  227.57                80
 10/22/2021   06:40:18   (   0.35,-128.31) (   0.54,-127.31)  113.33                80
 10/22/2021   19:01:33   (  -0.35,-128.31) (   0.53,-132.47)  472.63                80
 10/24/2021   06:28:07   (   0.34,-128.34) (   1.18,-124.35)  453.55                80
 10/24/2021   18:49:23   (  -0.34,-128.35) (  -0.11,-129.51)  132.50                80
 10/26/2021   18:39:51   (  -0.34,-128.37) (  -0.70,-126.55)  207.08                80
 10/27/2021   07:01:15   (   0.33,-128.39) (  -0.36,-131.75)  381.55                80
 10/29/2021   06:49:03   (   0.32,-128.41) (   0.23,-128.78)   42.69                80