Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 19.  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)
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.04,-125.08)  360.94                80
 10/20/2021   06:55:09   (   0.35,-128.26) (  -0.09,-130.26)  228.06                80
 10/22/2021   06:40:18   (   0.35,-128.30) (   0.55,-127.31)  112.58                80
 10/22/2021   19:01:34   (  -0.35,-128.31) (   0.52,-132.47)  472.91                80
 10/24/2021   06:28:07   (   0.34,-128.34) (   1.20,-124.36)  452.63                80
 10/24/2021   18:49:22   (  -0.34,-128.34) (  -0.07,-129.51)  132.99                80
 10/26/2021   18:39:51   (  -0.33,-128.37) (  -0.72,-126.55)  206.38                80
 10/27/2021   07:01:15   (   0.33,-128.38) (  -0.40,-131.74)  382.77                80
 10/29/2021   06:49:04   (   0.32,-128.40) (   0.25,-128.79)   44.09                80
 10/31/2021   06:34:12   (   0.32,-128.42) (   0.85,-125.82)  294.23                80
 10/31/2021   18:58:07   (  -0.31,-128.41) (   0.22,-130.99)  292.00                80