Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 8.  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)
 09/08/2021   18:39:40   (  -0.31,-128.17) (  -0.67,-126.53)  187.26                80
 09/09/2021   06:58:25   (   0.34,-128.22) (  -0.39,-131.73)  398.72                80
 09/11/2021   06:46:14   (   0.33,-128.19) (   0.23,-128.77)   65.04                80
 09/13/2021   06:36:43   (   0.32,-128.16) (   0.85,-125.81)  267.86                80
 09/13/2021   18:55:17   (  -0.35,-128.10) (   0.29,-130.96)  325.68                80
 09/15/2021   18:45:47   (  -0.34,-128.06) (  -0.34,-128.00)    6.47                80
 09/17/2021   18:33:36   (  -0.33,-128.02) (  -0.97,-125.05)  338.24                80
 09/18/2021   06:52:20   (   0.35,-128.06) (  -0.08,-130.25)  247.83                80
 09/20/2021   06:42:48   (   0.35,-128.02) (   0.49,-127.28)   84.05                80