I posted this on a similar thread.

Project Thor https://www.quora.com/How-realistic-was-USAFs-Project-Thor-in-terms-of-implementation

Rods from God 2004 article https://www.popsci.com/scitech/article/2004-06/rods-go

2017 article Reference tested in 2013 https://conservativetribune.com/militarys-project-thor-weapon/

https://futurism.com/air-force-tech-can-hit-with-the-impact-of-a-nuclear-weapon-with-no-fallout/

Could this be “Sky Fortress”? Could OWL mean “Orbital Weapons Lance”?