Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 7 22.  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)
 07/22/2019   06:33:39   (   0.04,-128.00) (   0.53,-125.74)  257.88                80
 07/22/2019   18:57:34   (  -0.01,-128.03) (   0.61,-130.88)  324.89                80
 07/24/2019   18:42:44   (  -0.02,-128.08) (  -0.03,-127.93)   17.12                80
 07/26/2019   18:30:34   (  -0.02,-128.13) (  -0.67,-124.98)  358.29                80
 07/27/2019   06:54:38   (  -0.02,-128.14) (  -0.47,-130.16)  230.88                80
 07/29/2019   06:39:49   (  -0.01,-128.18) (   0.21,-127.22)  109.07                80
 07/29/2019   19:03:44   (   0.04,-128.19) (   0.94,-132.37)  475.08                80
 07/31/2019   06:27:39   (   0.00,-128.21) (   0.83,-124.27)  448.17                80
 07/31/2019   18:51:35   (   0.03,-128.22) (   0.27,-129.42)  136.06                80
 08/02/2019   18:36:45   (   0.02,-128.25) (  -0.33,-126.47)  202.44                80
 08/03/2019   07:00:49   (  -0.06,-128.26) (  -0.81,-131.65)  386.56                80