Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 28.  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)
 09/29/2021   06:36:45   (   0.36,-127.60) (   0.74,-125.79)  205.68                80
 09/29/2021   18:55:21   (  -0.37,-127.55) (   0.34,-130.95)  386.84                80
 10/01/2021   18:43:10   (  -0.36,-127.46) (  -0.25,-127.99)   60.19                80
 10/03/2021   18:33:39   (  -0.36,-127.37) (  -0.86,-125.03)  266.03                80
 10/04/2021   06:52:24   (   0.37,-127.38) (  -0.21,-130.23)  323.63                80
 10/06/2021   06:42:53   (   0.37,-127.28) (   0.40,-127.27)    3.53                80
 10/08/2021   06:30:42   (   0.37,-127.19) (   1.01,-124.31)  327.46                80
 10/08/2021   18:49:16   (  -0.37,-127.13) (   0.14,-129.46)  265.50                80
 10/10/2021   18:39:46   (  -0.37,-127.02) (  -0.48,-126.50)   58.78                80