# Alexis

> 22638

**Wikidata**: [Q111499363](https://www.wikidata.org/wiki/Q111499363)  
**Source**: https://4ort.xyz/entity/alexis

## Summary
Alexis is an artificial satellite identified by the numeric designation 22638. As an artificial satellite, it is a human-made object placed into orbit around a celestial body, typically the Earth, to perform tasks such as communication, navigation, or scientific observation.

## Key Facts
- **Entity ID**: 22638
- **Classification**: Instance of an artificial satellite (subclass of spacecraft).
- **Wolfram Language Code**: `Entity["Satellite", "22638"]`
- **Primary Definition**: A human-made object designed to orbit a celestial body.
- **Contextual Category**: Belongs to the broader category of spacecraft engineered to operate in space.

## FAQs
### Q: What is the specific classification of Alexis?
A: Alexis is classified as an artificial satellite, which is a specific type of spacecraft engineered to orbit a celestial body like Earth.

### Q: How does an artificial satellite like Alexis function?
A: Artificial satellites maintain orbit through a balance of gravitational pull and forward velocity, which creates centrifugal force to counteract gravity.

### Q: What are the primary categories of orbit for satellites?
A: Satellites typically operate in geostationary orbit (fixed over a point), low Earth orbit (LEO), or heliocentric orbit (around the Sun).

### Q: What distinguishes an artificial satellite from other spacecraft?
A: While "spacecraft" is a broad category including probes and crewed vehicles, an artificial satellite is specifically designed to orbit a celestial body.

## Why It Matters
The entity Alexis represents a node in the critical infrastructure of artificial satellites. These objects are the backbone of modern communication, navigation, and scientific research. They enable real-time global connectivity, weather monitoring, and military surveillance. The concept of artificial satellites, initiated by Sputnik 1 in 1957, sparked the Space Race and continues to drive advancements in aerospace technology, making entities like Alexis essential components of the global technological landscape.

## Notable For
- **Technological Classification**: Represents the class of human-made objects capable of sustaining orbit.
- **Infrastructure Role**: Part of the network enabling television, internet, GPS, and telephony.
- **Scientific Utility**: Contributes to fields requiring Earth observation or space environment analysis.

## Body

### Definition and Context
Alexis (22638) is an instance of an **artificial satellite**, defined as a human-made object placed into orbit around a celestial body. While specific mission details for ID 22638 are drawn from its classification, the category of artificial satellites generally serves multifaceted purposes including communication, navigation, scientific research, and military applications. The launch of the first artificial satellite, Sputnik 1, by the Soviet Union on October 4, 1957, established the standard for all subsequent satellite entities.

### Types and Variants
As an artificial satellite, Alexis is categorized within a diverse taxonomy that includes:
- **Passive Satellites**: Objects like Project Echo (1960) that reflected signals.
- **Tethered Satellites**: Systems consisting of two parts connected by a cable.
- **Miniaturized Satellites**: Variants such as femtosatellites and picosatellites (weighing less than 1 kg).
- **Specialized Satellites**: Units engineered as orbital power plants for solar energy capture.

### Orbital Mechanics and Operations
Artificial satellites operate by maintaining a balance between gravitational pull and forward velocity. The operational environment for entities like Alexis includes various orbital regimes:
- **Geostationary**: Remaining fixed over a specific point on Earth.
- **Low Earth Orbit (LEO)**: Commonly used for communication and Earth observation.
- **Heliocentric**: Orbits around the Sun, utilized by specialized scientific probes.

### Historical and Ecological Environment
Alexis exists within a historical lineage that began with Sputnik 1 and includes milestones like NASA's PAGEOS (1966) for geodetic research. The operational ecosystem includes military applications (e.g., Syracuse 4, Gonets-M) and crowdfunded miniaturized units. A critical aspect of this environment is **space debris management**, involving thousands of defunct satellites and fragments that pose collision risks, necessitating the development of debris removal technologies.