Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 31.  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)
 12/31/2020   06:36:36   (  -0.14,-128.24) (   0.42,-125.72)  287.53                80
 12/31/2020   18:55:11   (   0.12,-128.25) (   0.70,-130.87)  298.75                80
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.07,-127.91)   36.03                80
 01/04/2021   18:33:27   (   0.14,-128.21) (  -0.56,-124.95)  370.44                80
 01/05/2021   06:52:11   (  -0.10,-128.19) (  -0.54,-130.14)  222.53                80
 01/07/2021   06:42:39   (  -0.11,-128.17) (   0.10,-127.19)  111.27                80
 01/07/2021   19:01:14   (   0.07,-128.17) (   0.96,-132.35)  474.94                80
 01/09/2021   06:30:27   (  -0.11,-128.14) (   0.74,-124.23)  444.48                80
 01/09/2021   18:49:02   (   0.08,-128.14) (   0.32,-129.40)  142.05                80
 01/11/2021   18:39:30   (   0.08,-128.10) (  -0.26,-126.43)  190.29                80
 01/12/2021   06:58:13   (  -0.05,-128.07) (  -0.83,-131.62)  403.73                80