Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 29.  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)
 12/29/2020   06:46:07   (  -0.14,-128.25) (  -0.25,-128.67)   47.71                80
 12/31/2020   06:36:35   (  -0.14,-128.24) (   0.38,-125.71)  287.53                80
 12/31/2020   18:55:11   (   0.12,-128.25) (   0.68,-130.87)  299.03                80
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.05,-127.92)   35.56                80
 01/04/2021   18:33:27   (   0.14,-128.20) (  -0.58,-124.96)  369.87                80
 01/05/2021   06:52:11   (  -0.10,-128.19) (  -0.52,-130.15)  222.86                80
 01/07/2021   06:42:39   (  -0.11,-128.16) (   0.12,-127.19)  110.81                80
 01/07/2021   19:01:15   (   0.07,-128.17) (   0.94,-132.36)  475.75                80
 01/09/2021   06:30:26   (  -0.11,-128.13) (   0.70,-124.22)  443.87                80
 01/09/2021   18:49:02   (   0.08,-128.13) (   0.36,-129.39)  142.96                80
 01/11/2021   18:39:30   (   0.08,-128.09) (  -0.28,-126.43)  189.22                80