Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 7.  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)
 09/08/2019   06:36:38   (   0.24,-128.24) (   0.75,-125.78)  279.47                80
 09/08/2019   18:55:13   (  -0.26,-128.26) (   0.32,-130.94)  305.11                80
 09/10/2019   18:45:42   (  -0.26,-128.22) (  -0.30,-127.98)   26.76                80
 09/12/2019   18:33:32   (  -0.25,-128.18) (  -0.92,-125.02)  358.44                80
 09/13/2019   06:52:15   (   0.28,-128.14) (  -0.20,-130.21)  236.51                80
 09/15/2019   06:42:44   (   0.28,-128.09) (   0.43,-127.25)   94.78                80
 09/15/2019   19:01:20   (  -0.29,-128.10) (   0.65,-132.41)  491.06                80
 09/17/2019   06:30:33   (   0.27,-128.04) (   1.05,-124.30)  425.59                80
 09/17/2019   18:49:09   (  -0.29,-128.05) (   0.03,-129.46)  160.22                80
 09/19/2019   18:39:38   (  -0.28,-127.99) (  -0.59,-126.50)  169.91                80
 09/20/2019   06:58:22   (   0.30,-127.96) (  -0.52,-131.69)  424.28                80