Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 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)
 06/13/2021   18:33:05   (  -0.10,-128.46) (  -0.81,-125.04)  388.92                80
 06/14/2021   06:54:30   (   0.09,-128.47) (  -0.25,-130.24)  200.86                80
 06/16/2021   06:39:39   (   0.10,-128.45) (   0.35,-127.28)  133.34                80
 06/16/2021   19:00:55   (  -0.10,-128.43) (   0.72,-132.44)  455.07                80
 06/18/2021   06:27:28   (   0.11,-128.43) (   0.96,-124.32)  467.29                80
 06/18/2021   18:48:44   (  -0.11,-128.41) (   0.11,-129.48)  121.00                80
 06/20/2021   18:39:13   (  -0.11,-128.39) (  -0.50,-126.51)  212.54                80
 06/21/2021   07:00:37   (   0.10,-128.40) (  -0.63,-131.70)  376.08                80
 06/23/2021   06:48:27   (   0.10,-128.36) (   0.05,-128.75)   43.77                80
 06/25/2021   06:33:36   (   0.11,-128.32) (   0.67,-125.79)  287.96                80
 06/25/2021   18:54:51   (  -0.10,-128.28) (   0.47,-130.94)  302.39                80