Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 22.  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)
 12/22/2020   06:42:43   (  -0.17,-128.26) (   0.05,-127.19)  121.27                80
 12/22/2020   19:01:19   (   0.15,-128.25) (   1.01,-132.36)  465.99                80
 12/24/2020   06:30:31   (  -0.18,-128.27) (   0.67,-124.23)  458.72                80
 12/24/2020   18:49:07   (   0.16,-128.26) (   0.39,-129.39)  128.76                80
 12/26/2020   18:39:35   (   0.16,-128.26) (  -0.22,-126.43)  207.85                80
 12/27/2020   06:58:20   (  -0.13,-128.27) (  -0.83,-131.64)  382.72                80
 12/29/2020   06:46:08   (  -0.14,-128.26) (  -0.20,-128.68)   46.87                80
 12/31/2020   06:36:36   (  -0.14,-128.25) (   0.42,-125.72)  288.42                80
 12/31/2020   18:55:11   (   0.12,-128.24) (   0.70,-130.87)  299.20                80
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.07,-127.91)   35.46                80
 01/04/2021   18:33:27   (   0.14,-128.20) (  -0.56,-124.95)  369.75                80