Radio Astronomy Explorer A
type: Thing
description: NASA artificial satellite
additional property: PropertyValue
  property ID: P31
  value: artificial satellite
additional property: PropertyValue
  property ID: P155
  value: Solrad 9
additional property: PropertyValue
  property ID: P156
  value: Explorer 39
additional property: PropertyValue
  property ID: P247
  value: 1968-055A
additional property: PropertyValue
  property ID: P373
  value: Explorer 38
additional property: PropertyValue
  property ID: P375
  value: Delta J
additional property: PropertyValue
  property ID: P377
  value: 03307
additional property: PropertyValue
  property ID: P619
  value: July 4, 1968
additional property: PropertyValue
  property ID: P793
  value: rocket launch
additional property: PropertyValue
  property ID: P1427
  value: Vandenberg Space Launch Complex 2
additional property: PropertyValue
  property ID: P2671
  value: /g/1213ttm3
additional property: PropertyValue
  property ID: P8913
  value: 1968-055A
confidence:
  popularity graph score:
    score: 0.006
    score pct: 1
    tier: long_tail
    components:
      sitelinks: 7
      sitelinks norm: 0.017
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 7
  unique citations: 1
  monthly pageviews: 0
  yearly pageviews: 36
  pageview trend:
    m: 2026-06
    v: 17
  pageview trend:
    m: 2026-05
    v: 5
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-04
    v: 13
  popularity:
    sitelinks: 7
    max: 423
    pct: 1.7
  tier: long_tail
claims:
  P31:
    value: Q26540
    source count: 0
    confidence: 0.0
    value label: artificial satellite
  P155:
    value: Q46400832
    source count: 0
    confidence: 0.0
    value label: Solrad 9
  P156:
    value: Q49891
    source count: 0
    confidence: 0.0
    value label: Explorer 39
  P247:
    value: 1968-055A
    source count: 0
    confidence: 0.0
  P373:
    value: Explorer 38
    source count: 0
    confidence: 0.0
  P375:
    value: Q49545
    source count: 1
    confidence: 0.2
    value label: Delta J
  P377:
    value: 03307
    source count: 1
    confidence: 0.2
  P619:
    value: +1968-07-04T00:00:00Z
    source count: 1
    confidence: 0.2
  P793:
    value: Q797476
    source count: 1
    confidence: 0.2
    value label: rocket launch
    qualifiers:
      P585: +1968-07-04T00:00:00Z
  P1427:
    value: Q2510100
    source count: 1
    confidence: 0.2
    value label: Vandenberg Space Launch Complex 2
  P2671:
    value: /g/1213ttm3
    source count: 0
    confidence: 0.0
  P8913:
    value: 1968-055A
    source count: 0
    confidence: 0.0
citations:
  source: Jonathan's Space Report
  stated in qid: Q6272367
meta:
  wikidata id: Q3736075
  domain: artificial_satellite
  level: standard
  html url: https://4ort.xyz/entity/radio-astronomy-explorer-a
  markdown url: https://4ort.xyz/entity/radio-astronomy-explorer-a.md
  facts url summary: https://4ort.xyz/entity/radio-astronomy-explorer-a/facts.json
  facts url standard: https://4ort.xyz/entity/radio-astronomy-explorer-a/facts.json
  facts url full: https://4ort.xyz/entity/radio-astronomy-explorer-a/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-02T03:42:48.769980Z
  entity updated at: 2026-05-03T21:19:00.258443+00:00Z
  entity created at: 2026-03-06T00:10:34.564134+00:00Z