Hayford ellipsoid
type: Thing
description: geodetic reference ellipsoid
additional property: PropertyValue
  property ID: P31
  value: reference ellipsoid
additional property: PropertyValue
  property ID: P138
  value: John Fillmore Hayford
additional property: PropertyValue
  property ID: P646
  value: /m/04f0yq6
additional property: PropertyValue
  property ID: P10565
  value: 123389
confidence:
  popularity graph score:
    score: 0.007
    score pct: 1
    tier: long_tail
    components:
      sitelinks: 8
      sitelinks norm: 0.019
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 36
      monthly pageviews norm: 0.0
  sitelinks: 8
  unique citations: 1
  monthly pageviews: 36
  yearly pageviews: 58
  pageview trend:
    m: 2026-08
    v: 36
  pageview trend:
    m: 2026-07
    v: 4
  pageview trend:
    m: 2026-06
    v: 4
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-05
    v: 3
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-05
    v: 2
  pageview trend:
    m: 2026-04
    v: 7
  popularity:
    sitelinks: 8
    max: 423
    pct: 1.9
  tier: long_tail
claims:
  P31:
    value: Q1335878
    source count: 0
    confidence: 0.0
    value label: reference ellipsoid
  P138:
    value: Q531272
    source count: 0
    confidence: 0.0
    value label: John Fillmore Hayford
  P646:
    value: /m/04f0yq6
    source count: 1
    confidence: 0.2
  P10565:
    value: 123389
    source count: 0
    confidence: 0.0
citations:
  source: Freebase Data Dumps
  stated in qid: Q15241312
  pub year: 2013
meta:
  wikidata id: Q1591933
  domain: reference_ellipsoid
  level: standard
  html url: https://4ort.xyz/entity/hayford-ellipsoid
  markdown url: https://4ort.xyz/entity/hayford-ellipsoid.md
  facts url summary: https://4ort.xyz/entity/hayford-ellipsoid/facts.json
  facts url standard: https://4ort.xyz/entity/hayford-ellipsoid/facts.json
  facts url full: https://4ort.xyz/entity/hayford-ellipsoid/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-24T06:56:33.690772Z
  entity updated at: 2026-05-03T23:45:09.469384+00:00Z
  entity created at: 2026-04-10T23:49:39.902015+00:00Z