# HYLAS-4

> telecommunications satellite

**Wikidata**: [Q18481870](https://www.wikidata.org/wiki/Q18481870)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HYLAS-4)  
**Source**: https://4ort.xyz/entity/hylas-4

## Summary
HYLAS-4 is a British telecommunications satellite operated by Avanti Communications. Launched on April 5, 2018, it is a high-capacity artificial satellite positioned in geostationary orbit to provide communication services.

## Key Facts
- **Launch Date:** April 5, 2018
- **Operator:** Avanti Communications
- **Country of Origin:** United Kingdom
- **Launch Vehicle:** Ariane 5 ECA
- **Launch Site:** ELA-3
- **Mass:** 4,050 kilograms
- **Orbit Type:** Geostationary orbit
- **Classifications:** Communications satellite, artificial satellite, geosynchronous satellite
- **COSPAR ID:** 2018-033B
- **Satellite Catalog Number (SCN):** 43272

## FAQs
### Q: Who operates the HYLAS-4 satellite?
A: HYLAS-4 is operated by Avanti Communications, a telecommunications company based in the United Kingdom.

### Q: When was HYLAS-4 launched and what rocket was used?
A: The satellite was launched on April 5, 2018. It was carried into space by an Ariane 5 ECA, which is a European launch vehicle.

### Q: What is the orbital position of HYLAS-4?
A: HYLAS-4 is located in a geostationary orbit, a specific type of geosynchronous orbit that allows the satellite to remain fixed relative to a point on the Earth's surface.

### Q: What is the physical size of HYLAS-4?
A: At the time of its launch, HYLAS-4 had a recorded mass of 4,050 kilograms.

## Why It Matters
HYLAS-4 is a significant component of the United Kingdom's space-based telecommunications infrastructure. As a large-scale communications satellite with a mass of over four tons, it represents a major investment in orbital technology by Avanti Communications. Its placement in geostationary orbit is essential for providing stable, continuous data and communication services to its coverage areas. The successful deployment of HYLAS-4 via the Ariane 5 ECA launch vehicle highlights the technical cooperation between UK satellite operators and European launch services. By functioning as a geosynchronous artificial satellite, it contributes to the global network of telecommunications, facilitating the transfer of data across vast distances from a fixed orbital position.

## Notable For
- **High Mass:** Features a significant launch mass of 4,050 kg.
- **Geostationary Operation:** Specifically designed to operate within a geostationary orbit for consistent telecommunications delivery.
- **European Launch:** Successfully deployed using the Ariane 5 ECA heavy-lift launch vehicle from the ELA-3 site.
- **International Tracking:** Recognized globally under the COSPAR ID 2018-033B and SCN 43272.

## Body

### Launch and Mission History
HYLAS-4 was successfully launched on April 5, 2018. The launch took place at the ELA-3 launch site, utilizing the Ariane 5 ECA, a prominent European launch vehicle. This event is documented as a significant rocket launch in the satellite's operational history.

### Technical Specifications
The satellite is a large-scale artificial object with a mass of 4,050 kilograms. It is classified under several categories:
- **Communications satellite:** Designed specifically for telecommunications.
- **Geosynchronous satellite:** Operates in an orbit synchronized with the Earth's rotation.
- **Artificial satellite:** A human-made object placed into orbit.

### Identification and Documentation
HYLAS-4 is tracked and identified by several international and technical identifiers:
- **SCN:** 43272
- **COSPAR ID:** 2018-033B
- **Google Knowledge Graph ID:** /g/11b60rwzxy
- **Wolfram Language Code:** Entity["Satellite", "43272"]

### Ownership and Origin
The satellite is a United Kingdom-based asset. It is owned and managed by the operator Avanti Communications. Information regarding the satellite is available in multiple languages, including English, German (de), and Portuguese (pt).

## References

1. Jonathan's Space Report