Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 21.  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) (   0.06,-127.19)  121.37                80
 12/22/2020   19:01:19   (   0.15,-128.25) (   1.00,-132.36)  465.99                80
 12/24/2020   06:30:31   (  -0.18,-128.27) (   0.67,-124.23)  458.90                80
 12/24/2020   18:49:07   (   0.16,-128.26) (   0.39,-129.40)  128.69                80
 12/26/2020   18:39:35   (   0.16,-128.27) (  -0.23,-126.44)  208.00                80
 12/27/2020   06:58:20   (  -0.13,-128.27) (  -0.82,-131.64)  382.43                80
 12/29/2020   06:46:08   (  -0.14,-128.27) (  -0.20,-128.68)   46.53                80
 12/31/2020   06:36:35   (  -0.14,-128.25) (   0.37,-125.71)  288.87                80
 12/31/2020   18:55:11   (   0.12,-128.25) (   0.70,-130.87)  298.84                80
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.07,-127.91)   35.87                80