Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 3.  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)
 07/04/2021   06:27:31   (   0.11,-128.16) (   0.94,-124.29)  439.53                80
 07/04/2021   18:48:46   (  -0.10,-128.13) (   0.19,-129.44)  149.93                80
 07/06/2021   18:39:15   (  -0.11,-128.07) (  -0.45,-126.48)  180.45                80
 07/07/2021   07:00:38   (   0.09,-128.08) (  -0.68,-131.67)  408.27                80
 07/09/2021   06:48:27   (   0.10,-128.02) (  -0.04,-128.71)   78.95                80
 07/11/2021   06:33:37   (   0.11,-127.95) (   0.60,-125.76)  249.71                80
 07/11/2021   18:54:51   (  -0.10,-127.90) (   0.52,-130.91)  341.65                80
 07/13/2021   18:45:19   (  -0.10,-127.82) (  -0.06,-127.94)   13.47                80
 07/15/2021   18:33:08   (  -0.11,-127.75) (  -0.71,-124.98)  314.82                80
 07/16/2021   06:54:32   (   0.10,-127.77) (  -0.41,-130.17)  273.12                80