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) (  -0.41,-128.03)   19.21                80
 10/19/2021   18:33:45   (  -0.35,-128.24) (  -1.04,-125.08)  360.11                80
 10/20/2021   06:55:09   (   0.35,-128.26) (  -0.08,-130.27)  228.41                80
 10/22/2021   06:40:18   (   0.35,-128.30) (   0.56,-127.31)  112.10                80
 10/22/2021   19:01:33   (  -0.35,-128.30) (   0.57,-132.46)  473.96                80
 10/24/2021   06:28:07   (   0.34,-128.33) (   1.20,-124.36)  452.02                80
 10/24/2021   18:49:22   (  -0.34,-128.33) (  -0.07,-129.51)  134.15                80
 10/26/2021   18:39:51   (  -0.34,-128.36) (  -0.72,-126.55)  205.07                80
 10/27/2021   07:01:15   (   0.33,-128.37) (  -0.40,-131.74)  383.58                80
 10/29/2021   06:49:04   (   0.32,-128.39) (   0.25,-128.79)   45.04                80