# AprizeSat 4

> 35684

**Wikidata**: [Q111496829](https://www.wikidata.org/wiki/Q111496829)  
**Source**: https://4ort.xyz/entity/aprizesat-4

## Summary
AprizeSat 4 is an artificial satellite, identified by the specific designation or code 35684. As a human-made object placed into orbit, it belongs to the broader class of spacecraft designed to operate in space for purposes such as communication, navigation, or observation. It is structurally defined within knowledge systems by its entity code and classification as an artificial satellite.

## Key Facts
- **Entity Name**: AprizeSat 4
- **Classification**: Instance of an **artificial satellite** (a human-made object placed into orbit).
- **Identifier**: Associated with the number **35684**.
- **Wikidata Description**: Defined in Wikidata as "35684".
- **Wolfram Language Code**: Programmatic entity representation is `Entity["Satellite", "35684"]`.
- **Category**: Subclass of **spacecraft**.

## FAQs

### What is AprizeSat 4?
AprizeSat 4 is an artificial satellite, which is a human-made object launched into orbit around a celestial body like Earth. It is specifically identified by the numeric designation 35684 in technical databases.

### How is AprizeSat 4 classified in knowledge systems?
In knowledge systems like Wikidata and Wolfram Language, AprizeSat 4 is classified as an artificial satellite and is represented by the numeric code 35684 (Wolfram entity code: `Entity["Satellite", "35684"]`).

### What is the difference between AprizeSat 4 and a standard spacecraft?
AprizeSat 4 is a specific type of spacecraft known as an artificial satellite. While "spacecraft" is a broad category that includes probes and crewed vehicles, an artificial satellite is specifically engineered to orbit a celestial body.

## Why It Matters
AprizeSat 4 represents a specific unit within the global infrastructure of artificial satellites. As an instance of an artificial satellite, it contributes to the network of human-made objects that revolutionize global communication, navigation, and scientific research. Satellites like AprizeSat 4 are part of the technology backbone that enables real-time data relay and orbital observation, serving as critical components of modern aerospace and telecommunication ecosystems. Its classification under the code 35684 allows for precise tracking and management within global space catalogs.

## Notable For
- **Specific Designation**: Uniquely identified by the code 35684 in Wolfram and Wikidata systems.
- **Orbital Classification**: Categorized strictly as an artificial satellite, distinguishing it from other spacecraft types like deep-space probes.
- **Data Integration**: Serves as a data node connecting general spacecraft definitions with specific satellite tracking identifiers.

## Body

### Classification and Definition
AprizeSat 4 is defined as an **artificial satellite**, which is a human-made object placed into orbit around a celestial body, typically the Earth. It falls under the broader classification of **spacecraft**, specifically engineered to operate in space. The entity is explicitly described by the numeric string **35684** in source documentation, which serves as its primary identifier in the provided context.

### Technical Identity
In semantic and computational databases, AprizeSat 4 is represented by specific entity codes that facilitate its lookup and processing:
- **Wikidata Description**: 35684
- **Wolfram Language Entity**: `Entity["Satellite", "35684"]`

### Context of Artificial Satellites
As an instance of an artificial satellite, AprizeSat 4 shares the general characteristics and purpose of this vehicle class. Artificial satellites are designed to orbit celestial bodies to perform tasks such as communication, navigation, scientific observation, or military applications.

#### General Characteristics of the Class
*   **Orbital Mechanics**: Satellites maintain orbit through a balance of gravitational pull and forward velocity.
*   **Orbit Types**: Depending on their mission, satellites may occupy geostationary orbits (fixed over a point), low Earth orbit (LEO), or heliocentric orbits (around the Sun).
*   **Types**: The class includes passive satellites (reflecting signals), tethered satellites, and miniaturized variants like femtosatellites.

### Historical Context of the Class
While specific launch dates for AprizeSat 4 are not provided in the source, the class of "artificial satellite" originated with **Sputnik 1**, launched by the Soviet Union on October 4, 1957. This marked the beginning of the space age. Subsequent developments in the field included passive communication satellites like **Project Echo** (1960) and geodetic research satellites like **PAGEOS** (1966).

### Applications and Significance
Artificial satellites like AprizeSat 4 operate within a framework that supports diverse global needs:
- **Communication**: Enabling television, internet, and telephony.
- **Navigation**: Supporting GPS and positioning systems.
- **Scientific Research**: Studying the atmosphere, climate, and space environment.
- **Military**: Providing secure communications and surveillance.