Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 4 25.  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)
 04/26/2019   06:26:58   (   0.08,-127.92) (   0.86,-124.28)  414.21                80
 04/26/2019   18:48:13   (  -0.09,-127.96) (   0.24,-129.43)  167.12                80
 04/28/2019   18:38:41   (  -0.09,-128.02) (  -0.41,-126.48)  175.50                80
 04/29/2019   07:00:05   (   0.09,-128.01) (  -0.70,-131.67)  416.51                80
 05/01/2019   06:47:53   (   0.09,-128.07) (  -0.05,-128.72)   74.22                80
 05/03/2019   06:33:01   (   0.09,-128.12) (   0.60,-125.77)  267.67                80
 05/03/2019   18:54:16   (  -0.09,-128.16) (   0.51,-130.92)  314.26                80
 05/05/2019   18:44:44   (  -0.10,-128.21) (  -0.15,-127.97)   26.85                80
 05/07/2019   18:32:32   (  -0.10,-128.24) (  -0.81,-125.02)  367.05                80
 05/08/2019   06:53:56   (   0.10,-128.23) (  -0.29,-130.21)  225.30                80