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Orbiting Astronomical Observatory 3

NASA space observatory launched in 1972
Thing Space Telescope Q12129338
Orbiting Astronomical Observatory 3
NASA's Scientific Visualization Studio - Advocates in Manpower Management, Inc./Sophia Roberts, University of Maryland College Park/Francis… · Public Domain · Wikimedia

Facts

21 properties
Instance of
space telescope
Country
United States[2]
Follows
Orbiting Astronomical Observatory B[5]
Official website
heasarc.gsfc.nasa.gov[15]
Part of
Orbiting Astronomical Observatory[7]
Country of origin
United States[9]
Diameter
2.1 m[21]
Height
3.0 m[18]
Launch contractor
Convair[16]
Manufacturer
Grumman[6]
Mass
2,204 kg[20]
Named after
Nicolaus Copernicus[4]
Operator
Goddard Space Flight Center[3]
Payload mass
450 kg[22]
Powered by
spacecraft solar array[10]
Significant event
rocket launch, spacecraft decommissioning[13][14]
Space launch vehicle
Atlas SLV-3C Centaur-D[8]
Start point
Cape Canaveral Launch Complex 36[17]
Type of orbit
low Earth orbit[11]
UTC date of spacecraft launch
August 21, 1972[12]
Width
6.3 m[19]
🏷️ Also known as
de Copernicus de OAO-3 de Orbiting Astronomical Observatory 3 fr Copernicus (satellite) ru Коперник ru ОАО-3 ru Орбитальная астрономическая обсерватория 3
🔖 Identifiers · 5
COSPAR ID
1972-065A
Encyclopædia Britannica Online ID
topic/Copernicus-United-States-satellite
Google Knowledge Graph ID
/g/1222z5bl
NSSDCA ID
1972-065A
SCN
06153

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Summary

Orbiting Astronomical Observatory 3 is a space telescope[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  2. [3] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  3. [4] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . Jonathan's Space Report. wikidata.org.
  8. [9] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  9. [10] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  10. [11] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  11. [12] ↑ . Jonathan's Space Report. wikidata.org.
  12. [13] ↑ . Jonathan's Space Report. wikidata.org.
  13. [14] ↑ . nssdc.gsfc.nasa.gov. nssdc.gsfc.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . Jonathan's Space Report. wikidata.org.
  17. [18] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . space.skyrocket.de. space.skyrocket.de. Provenance: wikidata.org.
  20. [21] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . ntrs.nasa.gov. ntrs.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Orbiting Astronomical Observatory 3. Retrieved November 11, 2026, from https://4ort.xyz/entity/orbiting-astronomical-observatory-3
MLA “Orbiting Astronomical Observatory 3.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/orbiting-astronomical-observatory-3.
BibTeX @misc{4ortxyz_orbiting-astronomical-observatory-3_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Orbiting Astronomical Observatory 3}}, year = {2026}, url = {https://4ort.xyz/entity/orbiting-astronomical-observatory-3}, note = {Accessed: 2026-11-11}}
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