First Survey

The first comprehensive astrographic and demographic survey of the Imperium, performed by the Imperial Interstellar Scout Service. More than a hundred years in the making, its publication in 420 made available the Imperium's records on its component worlds for public use.

The First Grand Survey was initiated by Empress Porfiria in 300. Imperial Scouts surveying the Julian Protectorate spark rumors of another war, but this never comes to pass: despite the use of armed force by the Star Legion, the Protectorate is surveyed to Class II standards - a fairly detailed IISS level - by the end of the survey.

An ancient Ziru Sirka installation on Mamatava is reconfigured in 399 by the IISS at a storage site for First Survey data: Mamatava herself is renamed Reference.

The 120-year long First Survey is closed out in 420, when the IISS officially publishes their findings.

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• Supplement 8 Library Data (A-M)
• Supplement 11 Library Data (N-Z)
• Challenge 49
• Module 1 - Tarsus

Non-Canon

T4 First Survey

This sourcebook for the Milieu:0 Campaign was published by Imperium games in 1996. It covers UWP information for nine sectors, backdated for year 0 of the Third Imperium. As a reference work, it is generally seen as flawed and outside of recognized canon. The main problem are the UWPs tech levels that surpass the maximum TL: 12 ceiling. A few exceptions are tolerable, but too many systems are presented that violates the ceiling.

Maximum Ziru Sirka borders

An extensive map of the maximum coreward extend of the Ziru Sirka has been created in the First Survey Report, written by LeRoy W.L. Guatney