Go to Orbital Witness using the Google Chrome browser.
Click three dots icon on the top right of Chrome.
Select "More Tools".
Select "Create Shortcut..."
Name and save your shortcut. You now have a shortcut saved on your desktop, double click it to open Orbital Witness.
Pro tip: drag and drop the shortcut to your Windows Taskbar to keep Orbital Witness pinned to the bottom of your screen and only one click away.
Alternatively, click the "star" icon in your search bar when Orbital Witness is open to add it to your Google Chrome bookmarks.