Q: What was the main purpose of the SIM Lite Astrometric Observatory?

A: The SIM Lite Astrometric Observatory was designed to measure star positions with unprecedented precision using interferometry techniques, which would help in detecting exoplanets and improving understanding of the Milky Way galaxy's structure.

Q: Why was the SIM Lite Astrometric Observatory cancelled?

A: The provided source material does not specify why the SIM Lite Astrometric Observatory was cancelled, though it is classified as "cancelled" in the structured properties.

Q: When was the SIM Lite Astrometric Observatory planned for launch?

A: The provided source material does not include information about the planned launch date.

Q: How did the SIM Lite Astrometric Observatory work?

A: The SIM Lite Astrometric Observatory was designed to use interferometry techniques to measure star positions with extremely high precision, though the specific technical details of its operation are not provided in the source material.

Q: What other names was the SIM Lite Astrometric Observatory known by?

A: It was also known as Space Interferometry Mission, SIM, SIM PlanetQuest, 宇宙干渉計ミッション, and 宇宙干渉法ミッション in Japanese.

SIM Lite Astrometric Observatory

cancelled NASA space telescope

Vehicle space_telescope Q224960

Facts

11 properties

Instance of: space telescope, cancelled^[2]
Official website: planetquest.jpl.nasa.gov, www.northropgrumman.com^[7]^[8]
Website: planetquest.jpl.nasa.gov, www.northropgrumman.com
Aperture: 0.5 m^[11]
Country of origin: United States^[5]
Length: 6 m^[10]
Manufacturer: Northrop Grumman Aeronautics Systems^[4]
Official name: SIM Lite Astrometric Observatory^[9]
Operator: National Aeronautics and Space Administration^[3]
Satellite of: heliocentric orbit
Type of orbit: heliocentric orbit^[6]

🏷️ Also known as

en SIM PlanetQuest en Space Interferometry Mission en SIM en SIM Lite Astrometric Observatory ar مهمة قياس التداخل الفضائي de SIM PlanetQuest ja 宇宙SIM光線観測機 ja 宇宙干渉法ミッション ja 宇宙干渉計ミッション zh 太空干涉測量任務

🔖 Identifiers · 5

Image (Wikimedia Commons): Space Interferometry Mission PIA04248.jpg ↗
Freebase ID: /m/02r3z6
Microsoft Academic ID (discontinued): 2781163934
NAIF ID: -190
Topic's main category: Category:Space Interferometry Mission

🔗 Connections

Country of origin 1

United States

Instance of 1

space telescope

Operator 1

National Aeronautics and Space Administration

Type of orbit 1

heliocentric orbit

Press Enter · cited answer in seconds

Summary

SIM Lite Astrometric Observatory is a space telescope^[1].

References

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

Direct Wikidata claims

[2] ↑ SIM Lite Astrometric Observatory — instance of (P31): cancelled. wikidata.org.
[3] ↑ SIM Lite Astrometric Observatory — operator (P137): National Aeronautics and Space Administration. wikidata.org.
[4] ↑ SIM Lite Astrometric Observatory — manufacturer (P176): Northrop Grumman Aeronautics Systems. northropgrumman.com. northropgrumman.com. Provenance: wikidata.org.
[5] ↑ SIM Lite Astrometric Observatory — country of origin (P495): United States. wikidata.org.
[6] ↑ SIM Lite Astrometric Observatory — type of orbit (P522): heliocentric orbit. web.archive.org. web.archive.org. Provenance: wikidata.org.
[7] ↑ SIM Lite Astrometric Observatory — official website (P856): https://planetquest.jpl.nasa.gov/SIM/index.cfm. wikidata.org.
[8] ↑ SIM Lite Astrometric Observatory — official website (P856): https://www.northropgrumman.com/space/sim-lite/. wikidata.org.
[9] ↑ SIM Lite Astrometric Observatory — official name (P1448): {'lang': 'en', 'text': 'SIM Lite Astrometric Observatory'}. northropgrumman.com. northropgrumman.com. Provenance: wikidata.org.
[10] ↑ SIM Lite Astrometric Observatory — length (P2043): 6 m. web.archive.org. web.archive.org. Provenance: wikidata.org.
[11] ↑ SIM Lite Astrometric Observatory — aperture (P7863): 0.5 m. web.archive.org. web.archive.org. Provenance: wikidata.org.

Class ancestry

[1] ↑ SIM Lite Astrometric Observatory is an instance of space telescope (Q148578) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

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). SIM Lite Astrometric Observatory. Retrieved October 30, 2026, from https://4ort.xyz/entity/sim-lite-astrometric-observatory

MLA

“SIM Lite Astrometric Observatory.” 4ort.xyz Knowledge Graph, 4ort.xyz, 30 Oct. 2026, https://4ort.xyz/entity/sim-lite-astrometric-observatory.

BibTeX

@misc{4ortxyz_sim-lite-astrometric-observatory_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SIM Lite Astrometric Observatory}}, year = {2026}, url = {https://4ort.xyz/entity/sim-lite-astrometric-observatory}, note = {Accessed: 2026-10-30}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SIM Lite Astrometric Observatory — https://4ort.xyz/entity/sim-lite-astrometric-observatory (retrieved 2026-10-30)

Canonical URL: https://4ort.xyz/entity/sim-lite-astrometric-observatory · Last refreshed: October 30, 2026