Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 6.  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)
 10/06/2021   06:42:54   (   0.37,-127.88) (   0.47,-127.29)   67.09                80
 10/08/2021   06:30:44   (   0.36,-127.95) (   1.14,-124.34)  410.45                80
 10/08/2021   18:49:20   (  -0.37,-127.96) (  -0.06,-129.50)  174.99                80
 10/10/2021   18:39:49   (  -0.37,-128.02) (  -0.67,-126.54)  167.52                80
 10/11/2021   07:01:13   (   0.37,-128.04) (  -0.39,-131.74)  420.59                80
 10/13/2021   06:49:02   (   0.36,-128.09) (   0.23,-128.78)   78.90                80
 10/15/2021   06:34:12   (   0.35,-128.14) (   0.85,-125.83)  262.62                80
 10/15/2021   18:55:27   (  -0.36,-128.14) (   0.22,-130.99)  323.41                80
 10/17/2021   18:45:56   (  -0.36,-128.19) (  -0.41,-128.03)   18.27                80
 10/19/2021   18:33:45   (  -0.35,-128.24) (  -1.04,-125.08)  359.61                80