Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 21.  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)
 05/21/2019   18:42:26   (  -0.12,-128.45) (  -0.23,-128.00)   51.76                80
 05/23/2019   18:30:16   (  -0.13,-128.46) (  -0.87,-125.04)  388.60                80
 05/24/2019   06:54:20   (   0.12,-128.42) (  -0.27,-130.23)  205.77                80
 05/26/2019   06:39:30   (   0.13,-128.43) (   0.38,-127.28)  130.73                80
 05/26/2019   19:03:26   (  -0.12,-128.47) (   0.71,-132.43)  451.20                80
 05/28/2019   06:27:20   (   0.14,-128.43) (   1.02,-124.32)  467.03                80
 05/28/2019   18:51:16   (  -0.13,-128.47) (   0.07,-129.48)  114.92                80
 05/30/2019   18:36:26   (  -0.13,-128.47) (  -0.57,-126.53)  221.04                80
 05/31/2019   07:00:29   (   0.12,-128.43) (  -0.55,-131.72)  373.06                80
 06/02/2019   06:48:19   (   0.12,-128.42) (   0.04,-128.75)   38.01                80