A: XMM is an artificial satellite. It is a human-made object that has been put into an orbit.

Q: How is XMM identified in databases?

A: XMM is identified by the number 25989. It appears in the Wolfram Language as `Entity["Satellite", "25989"]`.

Q: What category does XMM fall under?

A: XMM falls under the class of "artificial satellite." This classification covers any human-made object launched into space to orbit the Earth or another celestial body.

XMM

ESA space observatory

Vehicle artificial_satellite Q111497804

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XMM

Summary

XMM is an artificial satellite^[1].

Key Facts

XMM's instance of is recorded as artificial satellite^[2].

⭐ Popularity Graph

0/100 long tail

Quick Facts

Instance of space telescope

Official website sci.esa.int, xmm.esac.esa.int, www.cosmos.esa.int, nxsa.esac.esa.int

Part of Horizon 2000

Properties

Capital cost +689000000

Carries scientific instrument Wolter telescope of type I

Launch contractor Arianespace

Length +10.8

Manufacturer Dornier, Carl Zeiss AG, Media Lario, Matra Marconi Space, KNDS Ammo Italy, Airbus Defence and Space Netherlands

Mass +3764, +3234

Operator European Space Agency

P14541 WBM6w

Significant event proposal, consent, selection, development, construction, testing, rocket launch, service entry

Space launch vehicle Ariane 5G

Space tug EPS L9.7

Start point ELA-3

Type of orbit highly elliptical orbit

Utc date of spacecraft launch December 10, 1999

Width +16.16

External References (10)

Cospar id 1999-066A

Encyclopedia of china (third edition) id 507424

Encyclopædia britannica online id topic/XMM-Newton

Freebase id /m/01h62q

Gran enciclopèdia catalana id xmm-newton

Gran enciclopèdia catalana id (former scheme) 0282581

Great norwegian encyclopedia id XMM_Newton

Nssdca id 1999-066A

Scn 25989

Wolfram language entity code Entity["Satellite", "25989"]

🔗 Connections

Instance of 1

artificial satellite

References

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

Direct Wikidata claims

[2] ↑ XMM — instance of (P31): artificial satellite. wikidata.org.

Class ancestry

[1] ↑ XMM is an instance of artificial satellite (Q26540) [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). XMM. Retrieved May 3, 2026, from https://4ort.xyz/entity/xmm

MLA “XMM.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/xmm.

BibTeX

@misc{4ortxyz_xmm_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{XMM}}, year = {2026}, url = {https://4ort.xyz/entity/xmm}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): XMM — https://4ort.xyz/entity/xmm (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/xmm · Last refreshed: May 3, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

1h ago · Huntster · 2026-08-01 view diff on Wikidata ↗

Significant event → ['Q3918409', 'Q231043', 'Q12888920', 'Q7562091', 'Q3875186', 'Q20180812', 'Q7974

Mass → ['+3764', '+3234']

Wolfram language entity code → Entity["Satellite", "25989"]

Capital cost → +689000000

+ 31 other properties edited (see Wikidata diff for full list)

"/* wbmergeitems-to:0||Q693861 */"

Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.

XMM

XMM