Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 1.  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)
 09/01/2019   06:30:31   (   0.21,-128.34) (   1.08,-124.31)  459.00                80
 09/01/2019   18:49:07   (  -0.23,-128.37) (  -0.00,-129.47)  124.29                80
 09/03/2019   18:39:36   (  -0.23,-128.35) (  -0.63,-126.51)  209.62                80
 09/04/2019   06:58:20   (   0.26,-128.31) (  -0.50,-131.70)  385.68                80
 09/06/2019   06:46:09   (   0.25,-128.28) (   0.13,-128.74)   52.34                80
 09/08/2019   06:36:38   (   0.24,-128.25) (   0.76,-125.78)  280.56                80
 09/08/2019   18:55:14   (  -0.26,-128.27) (   0.32,-130.94)  303.95                80
 09/10/2019   18:45:43   (  -0.26,-128.24) (  -0.31,-127.98)   28.53                80
 09/12/2019   18:33:32   (  -0.26,-128.20) (  -0.94,-125.03)  360.85                80
 09/13/2019   06:52:15   (   0.28,-128.16) (  -0.18,-130.22)  233.86                80