Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 30.  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)
 02/01/2021   06:36:27   (   0.04,-127.52) (   0.44,-125.71)  205.74                80
 02/01/2021   18:55:03   (  -0.08,-127.55) (   0.63,-130.87)  378.30                80
 02/03/2021   18:42:51   (  -0.07,-127.47) (   0.02,-127.91)   50.58                80
 02/05/2021   18:33:19   (  -0.07,-127.38) (  -0.59,-124.95)  276.30                80
 02/06/2021   06:52:03   (   0.11,-127.31) (  -0.52,-130.14)  323.13                80
 02/08/2021   06:39:51   (   0.11,-127.22) (   0.09,-127.19)    4.02                80
 02/10/2021   06:30:19   (   0.10,-127.12) (   0.71,-124.23)  329.13                80
 02/10/2021   18:48:55   (  -0.14,-127.15) (   0.36,-129.39)  255.07                80
 02/12/2021   18:39:23   (  -0.14,-127.06) (  -0.26,-126.43)   70.97                80