# USA 159

> 26880

**Wikidata**: [Q111497640](https://www.wikidata.org/wiki/Q111497640)  
**Source**: https://4ort.xyz/entity/usa-159

## Summary
USA 159 is an artificial satellite operated by the United States. It is classified as a human-made object placed into orbit.

## Key Facts
- **instance_of:** artificial satellite
- **wikidata_description:** 26880
- **wolfram_language_entity_code:** Entity["Satellite", "26880"]
- **class:** artificial satellite (human-made object put into orbit)
- **sitelink_count:** 142 (for the artificial satellite class)

## FAQs
### Q: What is USA 159?
A: USA 159 is an artificial satellite launched and operated by the United States government.

### Q: What is the purpose of USA 159?
A: The specific purpose or mission details of USA 159 are not provided in the source material.

### Q: When was USA 159 launched?
A: The launch date of USA 159 is not specified in the source material.

### Q: What is the significance of the number "159" in USA 159?
A: The number "159" is part of the satellite's designation system used by the United States Space Force, but its specific meaning within that system is not detailed in the provided source.

## Why It Matters
Artificial satellites like USA 159 are fundamental to modern infrastructure and national security. They enable critical functions such as global communications, navigation (like GPS), Earth observation for weather forecasting and environmental monitoring, and military reconnaissance. The existence and operation of such satellites under designations like USA 159 underscore the United States' continued investment in space capabilities, which are essential for maintaining technological leadership, ensuring national security, and supporting global connectivity and scientific research. The specific role of USA 159, while not detailed here, contributes to this broader strategic capability.

## Notable For
- Being a designated artificial satellite within the USA series operated by the United States.
- Its classification as a human-made object placed into orbit.
- Its inclusion in the Wikidata entity system with ID 26880.
- Its representation in the Wolfram Language as a satellite entity.

## Body
### Classification
USA 159 is explicitly classified as an **artificial satellite**. This category defines it as a human-made object intentionally placed into orbit around a celestial body, such as Earth.

### Identification
The entity is identified by specific codes in knowledge bases:
- **Wikidata ID:** 26880
- **Wolfram Language Entity Code:** Entity["Satellite", "26880"]

### Context
The designation "USA 159" follows the naming convention used by the United States Space Force (USSF) for its space assets. This series typically denotes satellites managed by the US government, often for military or national security purposes. The number "159" is part of this sequential designation system.

### Related Class
The broader class to which USA 159 belongs is **artificial satellite**. This class encompasses all human-made objects placed in orbit, regardless of their specific function or operator. The class itself has significant presence online, as indicated by its **sitelink count of 142** across various Wikimedia projects.