Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 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)
 10/08/2021   06:30:44   (   0.36,-127.95) (   1.14,-124.34)  410.71                80
 10/08/2021   18:49:20   (  -0.37,-127.96) (  -0.06,-129.50)  174.82                80
 10/10/2021   18:39:49   (  -0.36,-128.02) (  -0.68,-126.54)  167.89                80
 10/11/2021   07:01:12   (   0.37,-128.04) (  -0.44,-131.73)  420.04                80
 10/13/2021   06:49:03   (   0.36,-128.09) (   0.24,-128.79)   78.17                80
 10/15/2021   06:34:12   (   0.35,-128.14) (   0.86,-125.83)  263.58                80
 10/15/2021   18:55:26   (  -0.36,-128.15) (   0.27,-130.98)  322.53                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.42,-128.03)   19.52                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.05,-125.08)  360.92                80
 10/20/2021   06:55:09   (   0.35,-128.27) (  -0.07,-130.27)  226.81                80