Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 8 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)
 08/21/2019   06:48:41   (  -0.14,-128.44) (  -0.17,-128.68)   26.38                80
 08/23/2019   06:33:50   (  -0.13,-128.44) (   0.45,-125.72)  309.21                80
 08/23/2019   18:57:44   (   0.17,-128.44) (   0.68,-130.87)  275.55                80
 08/25/2019   18:42:54   (   0.16,-128.43) (   0.07,-127.91)   59.06                80
 08/27/2019   18:30:43   (   0.16,-128.41) (  -0.55,-124.95)  392.92                80
 08/28/2019   06:54:46   (  -0.20,-128.40) (  -0.57,-130.14)  197.80                80
 08/30/2019   06:39:55   (  -0.19,-128.37) (   0.05,-127.18)  135.30                80
 08/30/2019   19:03:50   (   0.22,-128.37) (   1.09,-132.32)  450.68                80
 09/01/2019   06:27:45   (  -0.18,-128.34) (   0.67,-124.22)  468.26                80
 09/01/2019   18:51:39   (   0.22,-128.34) (   0.47,-129.37)  117.74                80