Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 4 20.  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)
 04/21/2020   18:44:53   (   0.27,-128.08) (   0.25,-127.89)   20.75                80
 04/23/2020   18:32:41   (   0.27,-128.12) (  -0.39,-124.94)  361.55                80
 04/24/2020   06:54:04   (  -0.27,-128.10) (  -0.72,-130.13)  231.58                80
 04/26/2020   06:39:13   (  -0.26,-128.14) (  -0.07,-127.18)  108.31                80
 04/26/2020   19:00:28   (   0.26,-128.18) (   1.12,-132.35)  473.83                80
 04/28/2020   06:27:01   (  -0.26,-128.17) (   0.58,-124.23)  447.34                80
 04/28/2020   18:48:16   (   0.25,-128.20) (   0.47,-129.40)  134.98                80
 04/30/2020   18:38:43   (   0.25,-128.23) (  -0.11,-126.43)  203.33                80
 05/01/2020   07:00:07   (  -0.24,-128.20) (  -0.99,-131.63)  389.86                80
 05/03/2020   06:47:55   (  -0.24,-128.22) (  -0.33,-128.68)   52.03                80