Q: What does the "401" in Atlas V 401 stand for?

A: The three-digit code describes the rocket's configuration: "4" indicates a 4-meter-diameter payload fairing, "0" means no solid rocket boosters are attached, and "1" signifies one engine on the Centaur upper stage.

Q: How is Atlas V 401 different from other Atlas V versions?

A: Atlas V 401 is the baseline, no-booster version. Other Atlas V variants add up to five solid boosters and can switch to a 5-meter fairing, enabling heavier payloads and higher-energy missions.

Q: Which Mars missions launched on Atlas V 401?

A: NASA's InSight lander (2018), MAVEN orbiter (2013), and Mars Reconnaissance Orbiter (2005) all rode Atlas V 401s from Cape Canaveral to the Red Planet.

Q: Can Atlas V 401 carry multiple satellites at once?

A: Yes. The rocket has deployed mixed payloads such as the U.S. Air Force's STPSat-1 technology demonstrator together with several university CubeSats on a single launch.

Atlas V 401

United Launch Alliance launch vehicle

class rocket_model Q20803939

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Atlas V 401

Summary

Atlas V 401 is a rocket model^[1].

Key Facts

Atlas V 401's image is recorded as Cygnus CRS OA-6 Atlas V rocket at launch pad (25968257375) (cropped).jpg^[2].
Atlas V 401's instance of is recorded as rocket model^[3].
Atlas V 401's subclass of is recorded as Atlas V^[4].
Atlas V 401's Commons category is recorded as Atlas V 401^[5].

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Instance of rocket model

Subclass of Atlas V

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🏷️ Also known as

he אטלס V 401

🔗 Connections

← Space launch vehicle 77

InSight, Mars Reconnaissance Orbiter, MAVEN, Lunar Reconnaissance Orbiter, Lucy, Solar Dynamics Observatory, LCROSS, Van Allen Probes +69 more

Subclass of 1

Atlas V

References

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

Direct Wikidata claims

Class ancestry

[1] ↑ Atlas V 401 is an instance of rocket model (Q110055303) [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). Atlas V 401. Retrieved March 8, 2026, from https://4ort.xyz/entity/atlas-v-401

MLA “Atlas V 401.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Mar. 2026, https://4ort.xyz/entity/atlas-v-401.

BibTeX

@misc{4ortxyz_atlas-v-401_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Atlas V 401}}, year = {2026}, url = {https://4ort.xyz/entity/atlas-v-401}, note = {Accessed: 2026-03-08}}

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According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Atlas V 401 — https://4ort.xyz/entity/atlas-v-401 (retrieved 2026-03-08)

Canonical URL: https://4ort.xyz/entity/atlas-v-401 · Last refreshed: March 8, 2026

Atlas V 401

Atlas V 401

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Direct Wikidata claims

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