Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 12 19.  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)
 12/20/2021   18:45:45   (  -0.11,-127.85) (  -0.09,-127.95)   11.77                80
 12/22/2021   18:30:53   (  -0.11,-127.91) (  -0.71,-124.99)  331.24                80
 12/23/2021   06:54:56   (   0.09,-127.92) (  -0.39,-130.18)  257.27                80
 12/25/2021   06:40:04   (   0.09,-127.97) (   0.24,-127.22)   85.33                80
 12/25/2021   19:03:59   (  -0.08,-127.99) (   0.88,-132.37)  499.02                80
 12/27/2021   06:27:53   (   0.09,-128.03) (   0.88,-124.26)  427.58                80
 12/27/2021   18:51:47   (  -0.08,-128.04) (   0.24,-129.42)  156.91                80
 12/29/2021   18:36:55   (  -0.08,-128.09) (  -0.40,-126.46)  184.58                80
 12/30/2021   07:00:59   (   0.07,-128.10) (  -0.70,-131.65)  404.13                80
 01/01/2022   06:48:47   (   0.07,-128.13) (  -0.05,-128.70)   63.82                80