Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 4 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)
 04/21/2020   18:44:53   (   0.27,-128.08) (   0.24,-127.89)   20.66                80
 04/23/2020   18:32:41   (   0.27,-128.12) (  -0.40,-124.94)  361.51                80
 04/24/2020   06:54:05   (  -0.27,-128.10) (  -0.71,-130.13)  231.53                80
 04/26/2020   06:39:13   (  -0.26,-128.14) (  -0.06,-127.18)  108.32                80
 04/26/2020   19:00:27   (   0.26,-128.18) (   1.17,-132.34)  473.89                80
 04/28/2020   06:27:01   (  -0.26,-128.16) (   0.59,-124.23)  447.34                80
 04/28/2020   18:48:16   (   0.25,-128.20) (   0.52,-129.39)  135.04                80
 04/30/2020   18:38:44   (   0.25,-128.22) (  -0.13,-126.44)  203.20                80
 05/01/2020   07:00:07   (  -0.24,-128.20) (  -0.97,-131.63)  389.89                80
 05/03/2020   06:47:55   (  -0.24,-128.22) (  -0.32,-128.68)   52.13                80