Q: What was the primary goal of Vanguard 1B?

A: Vanguard 1B was the second flight of the American Vanguard rocket program, intended as a backup to the first test vehicle (TV-3). It was designed to test the Vanguard small-lift launch vehicle's ability to carry a 1.36 kg satellite into orbit.

Q: Where was Vanguard 1B launched from?

A: The mission was launched from Cape Canaveral Launch Complex 18. The launch occurred on February 5, 1958, at 07:33.

Q: Was the Vanguard 1B mission successful?

A: No, the mission resulted in a failure during its second launching attempt. Historical documentation and video records from the time identify the event as a failed launch for the Vanguard rocket program.

Vanguard 1B

second flight of the American Vanguard rocket

Vehicle vanguard Q4055351

Facts

9 properties

Instance of: Vanguard
Launch date: 1958-02-05
Launch vehicle: Vanguard
Mass: 1.36 kg^[6]
Significant event: rocket launch^[4]
Space launch vehicle: Vanguard^[2]
Start point: Cape Canaveral Launch Complex 18^[5]
UTC date of spacecraft launch: February 5, 1958^[3]
Video: commons.wikimedia.org

🏷️ Also known as

en Vanguard TV3BU en Vanguard 1B en Vanguard Test Satellite G en Vanguard Test Vehicle-3 Backup en Vanguard Test Vehicle-Three Backup en Vanguard TV-3BU de Vanguard 1B ru Авангард TV3BU uk Венгард TV3BU uk Венґард TV3BU

🔖 Identifiers · 3

Image (Wikimedia Commons): TV3 satellite.JPG ↗
Freebase ID: /m/05f8v6r
NSSDCA ID: VAGT3B

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Instance of 1

Vanguard

Significant event 1

rocket launch

Space launch vehicle 1

Vanguard

Start point 1

Cape Canaveral Launch Complex 18

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Summary

Vanguard 1B is a Vanguard^[1].

⭐ Popularity Graph

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Vanguard 1

Vanguard 1A

🌐 Available in 6 languages

enVanguard TV-3BU deVanguard TV3BU frVanguard TV-3BU plVanguard TV3BU ruАвангард TV3BU ukВенгард TV3BU

References

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

Direct Wikidata claims

[2] ↑ Vanguard 1B — space launch vehicle (P375): Vanguard. Jonathan's Space Report. wikidata.org.
[3] ↑ Vanguard 1B — UTC date of spacecraft launch (P619): February 5, 1958. Jonathan's Space Report. wikidata.org.
[4] ↑ Vanguard 1B — significant event (P793): rocket launch. Jonathan's Space Report. wikidata.org.
[5] ↑ Vanguard 1B — start point (P1427): Cape Canaveral Launch Complex 18. Jonathan's Space Report. wikidata.org.
[6] ↑ Vanguard 1B — mass (P2067): 1.36 kg. wikidata.org.

Class ancestry

[1] ↑ Vanguard 1B is an instance of Vanguard (Q56294438) [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). Vanguard 1B. Retrieved November 2, 2026, from https://4ort.xyz/entity/vanguard-1b

MLA “Vanguard 1B.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/vanguard-1b.

BibTeX

@misc{4ortxyz_vanguard-1b_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Vanguard 1B}}, year = {2026}, url = {https://4ort.xyz/entity/vanguard-1b}, note = {Accessed: 2026-11-02}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Vanguard 1B — https://4ort.xyz/entity/vanguard-1b (retrieved 2026-11-02)

Canonical URL: https://4ort.xyz/entity/vanguard-1b · Last refreshed: November 2, 2026