Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 16.  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)
 06/16/2021   06:39:39   (   0.10,-128.45) (   0.35,-127.28)  133.72                80
 06/16/2021   19:00:55   (  -0.10,-128.44) (   0.73,-132.44)  454.28                80
 06/18/2021   06:27:28   (   0.11,-128.43) (   0.96,-124.31)  468.01                80
 06/18/2021   18:48:44   (  -0.11,-128.42) (   0.12,-129.47)  119.87                80
 06/20/2021   18:39:13   (  -0.11,-128.40) (  -0.50,-126.51)  214.01                80
 06/21/2021   07:00:37   (   0.10,-128.41) (  -0.63,-131.70)  374.81                80
 06/23/2021   06:48:27   (   0.10,-128.38) (   0.05,-128.75)   42.17                80
 06/25/2021   06:33:36   (   0.11,-128.34) (   0.67,-125.79)  289.86                80
 06/25/2021   18:54:51   (  -0.10,-128.30) (   0.46,-130.94)  300.08                80
 06/27/2021   18:45:20   (  -0.11,-128.26) (  -0.16,-127.98)   31.71                80
 06/29/2021   18:33:09   (  -0.12,-128.22) (  -0.78,-125.02)  363.53                80