Halo Alpha
Halo Alpha

Ivanoff Research Station (ONIRF IS-004920/001-54)[3] was a human-controlled monitoring and science station in orbit around Installation 03.

Little was known about this research station; it appears to have been kept top-secret. Even ONI's top scientist didn't know about it, or ONI's intentions to research Forerunner Installations.[4]


After Installation 03 was discovered in 2552,[5] Ivanoff Station was established.[3]

In March 2553, Margaret Parangosky, director of ONI, interrogated Dr. Halsey in a cell on this station about the SPARTAN-II Program and informed her that all of humanity believes her to be dead, also noting that she would be working for Parangosky and her successor until they saw a reason for her to do otherwise.[citation needed]

Attack on Station[]

Main article: Raid on Ivanoff Research Station

In 2557, the Ur-Didact along with a contingent of Jul 'Mdama's Covenant arrived at the station from the Forerunner Shield World of Requiem, in order to steal the Composer from the station and use it against Humanity. John-117 entered Ivanoff Station via a Lich he had boarded on Requiem prior to the ship's Slipspace travel. John-117's goal was to stop the Didact from getting the Composer by destroying it. However, John-117 failed to do so, resulting in the Didact stealing and using the Composer to 'compose' everyone remaining on the station in order to create more Promethean Knights. However, John-117 was not composed because he was made immune to the composer's effects by The Librarian earlier on Requiem. John-117 and Cortana obtained a Broadsword from the station's hangar bay and loaded it with a HAVOK Tactical Nuclear Weapon to pursue the Didact and destroy The Composer before he reached Earth.[2] A number of Ivanoff's scientists made it off the station and managed to survive in the asteroid field surrounding the station until the UNSC came to rescue them.[6]

It is not known whether it is back to operational status after the attack.


Ivanoff is built partially into an asteroid in the debris field near Installation 03. Ivanoff Station has an Energy Shield protecting its Hangar. Previously, this was only in use by the Covenant. It is given the name "Emergency Harbor Barricade" and is raised and lowered by the Harbormaster Controls.[2]


Ivanoff was created to help research and secure Installation 03.[3] As such, it has a number of artifacts from the ring world. This includes Installation 03's Activation Index, the Composer, and an imaging/beam component.[2]

Known Sections[]

  • Level C-5
    • Lab 4
    • Bay 7
  • Level C-9
    • Lab 5: This lab contains a large Containment Lattice of 18 artifacts. This includes the Activation Index (Specimen 2006), a plate with the Eld carved into it (Specimen 815), and an imaging/beam component (Specimen 1534).[2]
  • Level A-2
    • Atrium: This is where the Composer is held.[2]
    • Deck 13
      • Airlock 01
      • Airlock 02


Ivanoff held quite a bit of equipment for defense and other purposes. Ivanoff held seven excavation-grade HAVOK mines.[2] They also maintained at least three F-41 Exoatmospheric Multirole Strike Fighters on site at all times.[7]

For heavy lifting, the station used the SL-4 Traxus Cargo Transporter and the HRUNTING/YGGDRASIL Mark IX Armor Defense System.[2]


For defense, the site was guarded by 90[1] ONI Security personnel.[8] 250 staff from the Unified Earth Government were also on boards.[1]



Concept Art[]



  1. 1.0 1.1 1.2 1.3 Halo: Warfleet – An Illustrated Guide to the Spacecraft of Halo - Pages 34 & 35
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Halo 4 - Level: Composer
  3. 3.0 3.1 3.2 Halo 4: the Essential Visual Guide - Page 201
  4. Halo: Glasslands - Page 428, 431
  5. ELEVENTH HOUR Transmission 5
  6. Halo 4: The Essential Visual Guide - Page 35
  7. Halo 4: The Essential Visual Guide - Page 114
  8. Halo 4: The Essential Visual Guide - Page 34