# Dual Air Density Explorer

> NASA satellite of the Explorer program

**Wikidata**: [Q55610052](https://www.wikidata.org/wiki/Q55610052)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dual_Air_Density_Explorer)  
**Source**: https://4ort.xyz/entity/dual-air-density-explorer

## Summary
Dual Air Density Explorer is a NASA satellite in the Explorer program. It is classified as a spacecraft and is documented in public knowledge resources under the title "Dual Air Density Explorer" and the Commons category "Explorer 56 (DAD A)."

## Key Facts
- Dual Air Density Explorer is a NASA satellite of the Explorer program.  
- It is subclassed as a spacecraft.  
- The Wikipedia title for the entity is "Dual Air Density Explorer."  
- The Commons category for the mission is "Explorer 56 (DAD A)."  
- Wikidata describes it as "NASA satellite of the Explorer program."  
- It has a Google Knowledge Graph identifier: /g/11g0wgqpcr.  
- The entity has sitelink_count: 2.  
- The parent class "spacecraft" (the broader class) has a sitelink_count of 112.  
- Wikipedia language coverage listed: commons, en.

## FAQs
### Q: What is the Dual Air Density Explorer?
A: The Dual Air Density Explorer is a NASA satellite that is part of the Explorer program. It is classified as a spacecraft and is listed under the Wikipedia title "Dual Air Density Explorer."

### Q: Who operates or is responsible for Dual Air Density Explorer?
A: The Dual Air Density Explorer is a NASA satellite, indicating NASA is the responsible organization associated with the entity as presented in public metadata.

### Q: Where can I find public references or media for Dual Air Density Explorer?
A: Public references include its Wikipedia page (title: "Dual Air Density Explorer") and its Commons category "Explorer 56 (DAD A)." It is also represented in knowledge graphs with the identifier /g/11g0wgqpcr.

## Why It Matters
Dual Air Density Explorer matters as a named NASA satellite within the Explorer program and as a discrete, citable entity in public knowledge and media repositories. Its presence in Wikipedia and Wikimedia Commons means it is part of the documented record used by researchers, educators, and the public for reference and historical cataloging. The specific Commons category "Explorer 56 (DAD A)" provides a stable location for related media and visual assets. Its inclusion in linked-data systems, such as the Google Knowledge Graph (identifier /g/11g0wgqpcr), supports discoverability across search and knowledge platforms. As a subclass of the broader "spacecraft" category, the Dual Air Density Explorer is part of established classification systems that enable consistent indexing and cross-referencing between databases like Wikidata, Wikipedia, and media repositories. These features make the entity useful for information organization, retrieval, and citation even when technical mission details are consulted elsewhere.

## Notable For
- Being identified explicitly as a NASA satellite of the Explorer program.  
- Having a dedicated Commons category titled "Explorer 56 (DAD A)."  
- Being recorded with the Wikipedia title "Dual Air Density Explorer."  
- Having a Google Knowledge Graph identifier (/g/11g0wgqpcr) for linked-data discovery.  
- Classified as a subclass of the general "spacecraft" category in public metadata.

## Body
### Overview
- Name: Dual Air Density Explorer.  
- Described role: NASA satellite of the Explorer program (per Wikidata description).  
- Classification: Subclass of spacecraft.

### Classification and identifiers
- Wikipedia title: Dual Air Density Explorer.  
- Commons category: Explorer 56 (DAD A).  
- Wikidata description: "NASA satellite of the Explorer program."  
- Google Knowledge Graph ID: /g/11g0wgqpcr.

### Online presence and links
- Wikipedia language coverage listed: commons, en.  
- The entity has sitelink_count: 2.  
- The broader class "spacecraft" is associated with sitelink_count: 112.

### Relationships
- Parent / part of: spacecraft (vehicle or machine designed to fly in space).  
- Program affiliation: Explorer program (as stated in the entity description).

### Notes
- All assertions in this entry are drawn from the provided source metadata.  
- This entry does not include mission-specific technical details, launch dates, or operational history beyond the publicly listed classifications and repository identifiers available in the source material.