Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 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)
 12/31/2020   06:36:35   (  -0.14,-128.24) (   0.37,-125.71)  287.55                80
 12/31/2020   18:55:11   (   0.12,-128.25) (   0.69,-130.87)  298.86                80
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.06,-127.91)   35.79                80
 01/04/2021   18:33:27   (   0.14,-128.21) (  -0.58,-124.96)  370.18                80
 01/05/2021   06:52:11   (  -0.10,-128.19) (  -0.53,-130.15)  222.67                80
 01/07/2021   06:42:39   (  -0.11,-128.16) (   0.11,-127.19)  111.07                80
 01/07/2021   19:01:15   (   0.07,-128.17) (   0.94,-132.36)  475.31                80
 01/09/2021   06:30:26   (  -0.11,-128.13) (   0.70,-124.22)  444.21                80
 01/09/2021   18:49:02   (   0.08,-128.14) (   0.36,-129.39)  142.45                80
 01/11/2021   18:39:30   (   0.08,-128.10) (  -0.29,-126.43)  189.82                80
 01/12/2021   06:58:13   (  -0.05,-128.07) (  -0.81,-131.62)  404.07                80