Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 10.  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)
 12/10/2020   18:39:36   (   0.20,-128.13) (  -0.14,-126.42)  193.75                80
 12/11/2020   06:58:21   (  -0.18,-128.15) (  -0.92,-131.62)  394.53                80
 12/13/2020   06:46:10   (  -0.19,-128.18) (  -0.26,-128.67)   54.95                80
 12/15/2020   06:36:38   (  -0.19,-128.21) (   0.34,-125.71)  284.20                80
 12/15/2020   18:55:14   (   0.17,-128.20) (   0.72,-130.87)  303.32                80
 12/17/2020   18:45:42   (   0.18,-128.22) (   0.12,-127.91)   35.42                80
 12/19/2020   18:33:30   (   0.19,-128.24) (  -0.49,-124.95)  374.19                80
 12/20/2020   06:52:15   (  -0.17,-128.26) (  -0.56,-130.15)  214.95                80
 12/22/2020   06:42:43   (  -0.17,-128.28) (   0.05,-127.19)  123.69                80
 12/22/2020   19:01:19   (   0.15,-128.28) (   1.01,-132.35)  463.49                80