Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 9.  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)
 06/09/2021   06:33:31   (   0.08,-128.48) (   0.65,-125.80)  304.84                80
 06/09/2021   18:54:47   (  -0.08,-128.48) (   0.43,-130.96)  281.67                80
 06/11/2021   18:45:16   (  -0.09,-128.47) (  -0.17,-127.99)   53.84                80
 06/13/2021   18:33:06   (  -0.09,-128.46) (  -0.84,-125.05)  388.67                80
 06/14/2021   06:54:29   (   0.09,-128.46) (  -0.29,-130.23)  201.12                80
 06/16/2021   06:39:40   (   0.10,-128.45) (   0.38,-127.28)  132.99                80
 06/16/2021   19:00:54   (  -0.10,-128.43) (   0.77,-132.43)  455.47                80
 06/18/2021   06:27:29   (   0.11,-128.43) (   0.98,-124.32)  466.83                80
 06/18/2021   18:48:44   (  -0.11,-128.41) (   0.10,-129.48)  121.53                80
 06/20/2021   18:39:13   (  -0.11,-128.38) (  -0.52,-126.52)  211.97                80
 06/21/2021   07:00:37   (   0.10,-128.40) (  -0.61,-131.71)  376.66                80