Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 5 19.  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)
 05/19/2019   06:33:20   (   0.12,-128.39) (   0.65,-125.79)  295.75                80
 05/19/2019   18:54:35   (  -0.11,-128.43) (   0.44,-130.95)  285.91                80
 05/21/2019   18:45:05   (  -0.12,-128.45) (  -0.20,-127.99)   51.64                80
 05/23/2019   18:32:56   (  -0.13,-128.46) (  -0.83,-125.04)  388.71                80
 05/24/2019   06:54:20   (   0.12,-128.43) (  -0.24,-130.24)  205.14                80
 05/26/2019   06:39:30   (   0.13,-128.44) (   0.40,-127.28)  131.64                80
 05/26/2019   19:03:25   (  -0.12,-128.47) (   0.75,-132.43)  450.77                80
 05/28/2019   06:27:19   (   0.14,-128.44) (   0.99,-124.32)  468.16                80
 05/28/2019   18:51:15   (  -0.13,-128.48) (   0.11,-129.48)  114.25                80
 05/30/2019   18:36:25   (  -0.13,-128.48) (  -0.54,-126.52)  221.94                80
 05/31/2019   07:00:29   (   0.12,-128.45) (  -0.58,-131.71)  371.56                80