Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 10.  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)
 10/10/2021   18:39:49   (  -0.36,-128.02) (  -0.67,-126.54)  168.04                80
 10/11/2021   07:01:13   (   0.37,-128.05) (  -0.39,-131.74)  419.77                80
 10/13/2021   06:49:02   (   0.36,-128.10) (   0.23,-128.78)   77.76                80
 10/15/2021   06:34:11   (   0.35,-128.15) (   0.85,-125.83)  264.06                80
 10/15/2021   18:55:27   (  -0.36,-128.15) (   0.22,-130.99)  322.09                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.41,-128.03)   19.92                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.04,-125.08)  361.58                80
 10/20/2021   06:55:09   (   0.35,-128.28) (  -0.08,-130.27)  226.04                80
 10/22/2021   06:40:18   (   0.35,-128.32) (   0.56,-127.31)  115.21                80
 10/22/2021   19:04:14   (  -0.35,-128.32) (   0.51,-132.47)  471.35                80