Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 12.  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) (   0.21,-128.78)   77.83                80
 10/15/2021   06:34:11   (   0.35,-128.15) (   0.83,-125.82)  263.94                80
 10/15/2021   18:55:27   (  -0.35,-128.15) (   0.24,-130.98)  322.21                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.39,-128.03)   19.63                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.02,-125.07)  361.35                80
 10/20/2021   06:55:09   (   0.35,-128.28) (  -0.10,-130.26)  226.29                80
 10/22/2021   06:40:18   (   0.35,-128.32) (   0.54,-127.31)  114.95                80
 10/22/2021   19:04:14   (  -0.35,-128.32) (   0.53,-132.47)  471.65                80
 10/24/2021   06:28:07   (   0.35,-128.36) (   1.19,-124.35)  455.53                80
 10/24/2021   18:49:23   (  -0.34,-128.36) (  -0.12,-129.51)  131.17                80