Orbital defense platform (Earth-2042)

"That MAC gun can put a round clean through a Covenant capital ship."

- Sergeant Major Avery Johnson to Anakin Skywalker

Orbital defense platform (ODP), also known as an orbital weapon platform, is a general term for a wide variety of space stations employed by the the New Galactic Republic, the Galactic Empire, and the Galactic Republic. Stations falling into this classification include unmanned weapon satellites all the way to large stations with a capital grade Magnetic Accelerator Cannon built into it.

Orbital defense platforms are frequently placed in geosynchronous orbit and deployed in groups, or clusters, of two to five platforms. The well-equipped and large bridge of an ODP is suitable for directing large-scale engagements. Such was the case when Fleet Admiral Lord Terrence Hood directed Systems Alliance forces from an ODP during the Battle of Onderon and the Battle of Coruscant. These platforms are capable of destroying even the largest of CIS capital ships but were vulnerable to CIS boarding craft which could avoid the heavy slugs and latch onto the stations. If they survive the point defense guns, it was up to the Systems Alliance personnel within the stations to repel any boarders.

Source

 * https://www.halopedia.org/Orbital_defense_platform