Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 13.  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)
 10/13/2021   06:49:02   (   0.36,-128.10) (   0.23,-128.78)   77.89                80
 10/15/2021   06:34:11   (   0.35,-128.15) (   0.85,-125.83)  263.83                80
 10/15/2021   18:55:27   (  -0.35,-128.15) (   0.22,-130.99)  322.26                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.41,-128.03)   19.70                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.05,-125.08)  361.23                80
 10/20/2021   06:55:09   (   0.35,-128.27) (  -0.07,-130.27)  226.50                80
 10/22/2021   06:40:18   (   0.35,-128.32) (   0.57,-127.31)  114.65                80
 10/22/2021   19:04:13   (  -0.35,-128.32) (   0.56,-132.46)  471.87                80
 10/24/2021   06:28:07   (   0.35,-128.36) (   1.21,-124.36)  455.21                80
 10/24/2021   18:49:22   (  -0.34,-128.35) (  -0.08,-129.51)  131.42                80
 10/26/2021   18:39:51   (  -0.34,-128.39) (  -0.73,-126.55)  208.44                80