Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 3.  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)
 01/04/2021   18:33:27   (   0.14,-128.22) (  -0.58,-124.96)  371.16                80
 01/05/2021   06:52:11   (  -0.10,-128.20) (  -0.52,-130.15)  222.03                80
 01/07/2021   06:42:39   (  -0.11,-128.17) (   0.12,-127.19)  112.06                80
 01/07/2021   19:01:15   (   0.07,-128.19) (   0.94,-132.36)  473.76                80
 01/09/2021   06:30:26   (  -0.11,-128.15) (   0.70,-124.22)  445.55                80
 01/09/2021   18:49:02   (   0.08,-128.16) (   0.36,-129.39)  140.56                80
 01/11/2021   18:39:30   (   0.08,-128.12) (  -0.29,-126.43)  192.05                80
 01/12/2021   06:58:14   (  -0.05,-128.09) (  -0.81,-131.62)  402.25                80
 01/14/2021   06:46:02   (  -0.06,-128.05) (  -0.16,-128.67)   69.83                80
 01/16/2021   06:36:29   (  -0.07,-128.01) (   0.43,-125.70)  262.68                80
 01/16/2021   18:55:05   (   0.03,-128.02) (   0.63,-130.86)  323.13                80