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Research dossier · Science & Nature

Pujiang-1

Chinese technology demonstration satellite

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 1, 2024
Entity authorityQ21190928 ↗
Source-derived summary

Pujiang-1, also known as PJ-1, is a Chinese technology demonstration satellite designed to promote the construction of smart cities in China. PJ-1 also monitors weather, traffic and population density of a city. It is the first Chinese satellite that uses 3D printing for the titanium structure of its antenna. It also features a Wi-Fi router providing a communication network between satellites.

Launch

PJ-1 was launched on 25 September 2015 at 1:41 UTC from the Jiuquan Satellite Launch Center (JSLC) in China.

Orbit

The Chang Zheng 11 (Long March 11) carrier rocket delivered PJ-1 satellite into a Sun-synchronous orbit (SSO) at an altitude of about 299 miles (481 km), inclined 97.3 degrees.

Editorial summary

This brief starts where responsible research should: with the source description of “Pujiang-1” as chinese technology demonstration satellite. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current lead gives the account dated anchors—2015—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Pujiang-1, Chinese and technology can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as chinese technology demonstration satellite. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 1, 2024. The linked authority identifier is Q21190928. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2015.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Pujiang-1”, its source revision and the description used here.
  2. Expand the search: follow Pujiang-1 primary sources, Pujiang-1 archive and Pujiang-1 research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Pujiang-1”?
  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from “Pujiang-1” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.