# XY-2

> 40904

**Wikidata**: [Q111471564](https://www.wikidata.org/wiki/Q111471564)  
**Source**: https://4ort.xyz/entity/xy-2

## Summary
XY-2 is an artificial satellite, defined as a human-made object put into an orbit. It is identified in knowledge systems and databases by the code 40904.

## Key Facts
- **Classification:** XY-2 is an instance of an artificial satellite.
- **Definition:** As an artificial satellite, it is a human-made object put into an orbit.
- **Identifier:** The entity is associated with the numeric identifier 40904.
- **Wikidata Description:** The raw description for XY-2 is listed as 40904.
- **Wolfram Language Code:** The entity is represented in the Wolfram Language as `Entity["Satellite", "40904"]`.
- **Category Membership:** It belongs to the class "artificial satellite," a category with significant representation across knowledge bases (indicated by a sitelink count of 142 for the class).

## FAQs
### Q: What type of object is XY-2?
A: XY-2 is an artificial satellite. This means it is a human-made object that has been put into an orbit.

### Q: What is the specific identification code for XY-2?
A: XY-2 is identified by the code 40904. This number is used in both Wikidata descriptions and Wolfram Language entity definitions.

### Q: How is XY-2 represented in technical computing environments?
A: In the Wolfram Language, XY-2 is represented by the code `Entity["Satellite", "40904"]`.

## Why It Matters
XY-2 matters as a distinct data point within the broader catalog of human-made orbital objects. As an instance of an artificial satellite, it contributes to the extensive network of infrastructure, scientific instruments, or technological assets currently orbiting the Earth. The classification of XY-2 highlights the continuous expansion of the satellite ecosystem.

The specific identification of XY-2 via the code 40904 is essential for precise tracking, data retrieval, and differentiation from other objects in space. Without such specific identifiers, managing the growing population of orbital assets would be impossible. Its inclusion in structured knowledge bases like Wikidata and computational engines like Wolfram Language underscores its relevance as a verifiable entity in scientific and technical databases.

## Notable For
- **Artificial Satellite Classification:** Being explicitly classified as a human-made object put into an orbit.
- **Unique Identifier:** Being uniquely distinguished by the code 40904 within database systems.
- **Data Accessibility:** Being accessible as a distinct entity within the Wolfram Language knowledgebase.

## Body
### Classification and Definition
XY-2 is formally classified as an **artificial satellite**. In the context of the provided knowledge, an artificial satellite is defined as any **human-made object put into an orbit**. This places XY-2 within the primary category of man-made objects that circle celestial bodies, distinct from natural satellites like moons.

### Identification and Coding
The entity XY-2 is rigorously defined in structured data systems through specific codes:
- **Numeric Identifier:** The primary descriptor and raw description associated with this entity is **40904**.
- **Wolfram Language:** The entity can be called programmatically using the code **`Entity["Satellite", "40904"]`**.

### Contextual Data
XY-2 exists within the "artificial satellite" class, a major category in knowledge graphs. The class itself has a **sitelink count of 142**, indicating a high level of interconnectivity and documentation for this category of objects across various language and data projects.