Soyuz 40

crewed flight of the Soyuz programme

Vehicle soyuz_7k_t Q601397

Soyuz 40 — Unknown authorUnknown author · Public Domain · Wikimedia

Facts

26 properties

Instance of: Soyuz 7K-T, human spaceflight^[3]
Country: Soviet Union^[2]
Follows: Soyuz 39^[5]
Followed by: Soyuz T-5^[6]
Duration: 679312.0
Part of: Soyuz programme^[8]
Apoapsis: 287.0
Backup or reserve team or crew: Yury Romanenko, Dumitru Dediu
Call sign: Dnieper
Crew members: Leonid Popov, Dumitru Prunariu^[16]^[17]
Location of landing: Kazakhstan
Manufacturer: S.P. Korolev Rocket and Space Corporation Energia^[7]
Mass: 6800.0
Operator: Soviet space program^[4]
Orbital inclination: 51.62
Orbital period: 89.06
Orbits completed: 124.0
Periapsis: 198.1
Significant event: rocket launch, landing, docking and berthing of spacecraft (1981–1981)^[14]^[15]
Space launch vehicle: Soyuz-U^[9]
Start point: Baikonur Cosmodrome
Time of object orbit decay: 1981^[13]
Type of orbit: low Earth orbit^[10]
UTC date of spacecraft landing: May 22, 1981^[12]

Show all 26 facts +2

UTC date of spacecraft launch: May 14, 1981^[11]
Vessel: Soyuz 7K-T

🏷️ Also known as

en Soyuz 40 ar سويوز ٤٠ ar سايوز 40 cs Sojuz 40 de Sojus 40 el Σογιούζ 40 fa سایوز۴۰ fr Soyouz 40 he סויוז 40 hu Szojuz–40 ja ソユーズ40号 nl Sojoez 40 ro Soiuz 40 ru Союз-40 zh 联盟40号 zh-hant 聯盟40號

🔖 Identifiers · 4

COSPAR ID: 1981-042A
Freebase ID: /m/03gz84
SCN: 12454
Wolfram Language entity code: Entity["Satellite", "12454"]

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🔗 Connections

Significant event 3

landing, docking and berthing of spacecraft, rocket launch

Backup or reserve team or crew 2

Yury Romanenko, Dumitru Dediu

Crew members 2

Dumitru Prunariu, Leonid Popov

Instance of 2

human spaceflight, Soyuz 7K-T

← Astronaut mission 2

Dumitru Prunariu, Leonid Popov

Belongs to 1

Soyuz programme

Country 1

Soviet Union

Followed by 1

Soyuz T-5

Followed by (predecessor) 1

Soyuz T-5

Follows 1

Soyuz 39

Location of landing 1

Kazakhstan

Manufacturer 1

S.P. Korolev Rocket and Space Corporation Energia

Operator 1

Soviet space program

Part of 1

Soyuz programme

Preceded by (successor) 1

Soyuz 39

Space launch vehicle 1

Soyuz-U

Start point 1

Baikonur Cosmodrome

Type of orbit 1

low Earth orbit

Vessel 1

Soyuz 7K-T

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Summary

Soyuz 40 is a Soyuz 7K-T^[1].

References

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

Direct Wikidata claims

[2] ↑ Soyuz 40 — country (P17): Soviet Union. wikidata.org.
[3] ↑ Soyuz 40 — instance of (P31): human spaceflight. wikidata.org.
[4] ↑ Soyuz 40 — operator (P137): Soviet space program. wikidata.org.
[5] ↑ Soyuz 40 — follows (P155): Soyuz 39. wikidata.org.
[6] ↑ Soyuz 40 — followed by (P156): Soyuz T-5. wikidata.org.
[7] ↑ Soyuz 40 — manufacturer (P176): S.P. Korolev Rocket and Space Corporation Energia. wikidata.org.
[8] ↑ Soyuz 40 — part of (P361): Soyuz programme. wikidata.org.
[9] ↑ Soyuz 40 — space launch vehicle (P375): Soyuz-U. Jonathan's Space Report. wikidata.org.
[10] ↑ Soyuz 40 — type of orbit (P522): low Earth orbit. wikidata.org.
[11] ↑ Soyuz 40 — UTC date of spacecraft launch (P619): May 14, 1981. Jonathan's Space Report. wikidata.org.
[12] ↑ Soyuz 40 — UTC date of spacecraft landing (P620): May 22, 1981. wikidata.org.
[13] ↑ Soyuz 40 — time of object orbit decay (P621): 1981. wikidata.org.
[14] ↑ Soyuz 40 — significant event (P793): rocket launch. Jonathan's Space Report. wikidata.org.
[15] ↑ Soyuz 40 — significant event (P793): landing. wikidata.org.
[16] ↑ Soyuz 40 — crew members (P1029): Leonid Popov. wikidata.org.
[17] ↑ Soyuz 40 — crew members (P1029): Dumitru Prunariu. wikidata.org.

Class ancestry

[1] ↑ Soyuz 40 is an instance of Soyuz 7K-T (Q1827405) [P31, primary]. 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). Soyuz 40. Retrieved November 2, 2026, from https://4ort.xyz/entity/soyuz-40

MLA “Soyuz 40.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/soyuz-40.

BibTeX

@misc{4ortxyz_soyuz-40_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Soyuz 40}}, year = {2026}, url = {https://4ort.xyz/entity/soyuz-40}, note = {Accessed: 2026-11-02}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Soyuz 40 — https://4ort.xyz/entity/soyuz-40 (retrieved 2026-11-02)

Canonical URL: https://4ort.xyz/entity/soyuz-40 · Last refreshed: November 2, 2026