# Chollian

> communications satellite

**Wikidata**: [Q487256](https://www.wikidata.org/wiki/Q487256)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Chollian)  
**Source**: https://4ort.xyz/entity/chollian

## Summary
Chollian is a South Korean communications satellite that also serves as a technology demonstration spacecraft. It was launched in 2010 by the Korea Aerospace Research Institute using an Ariane 5 ECA launch vehicle.

## Key Facts
- Chollian (also known as GEO-KOMPSAT-1, COMS-1) is a communications satellite operated by South Korea's Korea Aerospace Research Institute
- It was launched on June 26, 2010 from ELA-3 using an Ariane 5 ECA launch vehicle
- The satellite has a mass of 2,460 kilograms
- It operates in geostationary orbit (GEO)
- Its COSPAR ID is 2010-032A
- Chollian is also classified as a technology demonstration spacecraft
- It has multiple aliases including "Cheollian," "Communication, Ocean and Meteorological Satellite 1," and "천리안위성" in Korean

## FAQs
### Q: What is the primary purpose of Chollian?
A: Chollian serves as a communications satellite operated by South Korea's Korea Aerospace Research Institute. It's also used for technology demonstrations and performs meteorological and ocean observation functions.

### Q: When was Chollian launched and by whom?
A: Chollian was launched on June 26, 2010 from ELA-3 using an Ariane 5 ECA launch vehicle. It was operated by the Korea Aerospace Research Institute of South Korea.

### Q: What orbit does Chollian occupy?
A: Chollian operates in geostationary orbit, which allows it to maintain a fixed position relative to the Earth's surface, making it ideal for communications applications.

### Q: What makes Chollian unique among South Korean satellites?
A: Chollian is significant as South Korea's dedicated geostationary satellite for communications, meteorology, and ocean observation. It demonstrates advanced space technologies developed by South Korea and represents an important milestone in the country's space program.

## Why It Matters
Chollian represents a significant advancement in South Korea's space capabilities and serves as a critical infrastructure for the nation's communications and Earth observation needs. As a geostationary satellite, it enables continuous telecommunications services across South Korea and surrounding regions, supporting everything from mobile networks to broadcasting. Its dual role as a communications platform and meteorological observation tool makes it indispensable for weather forecasting and disaster monitoring. The satellite also demonstrates South Korea's growing expertise in space technology, serving as a technology demonstrator for future missions. For the Korea Aerospace Research Institute, Chollian validates the country's ability to build and operate complex spacecraft, paving the way for more ambitious space endeavors.

## Notable For
- South Korea's first dedicated geostationary communications, ocean, and meteorological satellite
- Developed as a technology demonstration spacecraft to showcase advanced satellite technologies
- Operates in geostationary orbit at 128.2°E longitude, providing continuous coverage of the Korean Peninsula and surrounding regions
- Features multiple payloads for telecommunications, ocean monitoring, and meteorological observations
- Represents a significant milestone in South Korea's space program capabilities

## Body
### Mission Profile
Chollian is a communications satellite with additional capabilities for ocean observation and meteorological monitoring. It operates in geostationary orbit, maintaining a fixed position relative to Earth's surface. The satellite was built to provide continuous telecommunications services across South Korea and surrounding regions.

### Technical Specifications
- Mass: 2,460 kilograms
- COSPAR ID: 2010-032A
- SCN: 36744
- Launch Date: June 26, 2010
- Launch Vehicle: Ariane 5 ECA
- Launch Site: ELA-3 (European Spaceport, French Guiana)

### Ownership and Operation
Chollian is owned and operated by the Korea Aerospace Research Institute (KARI), South Korea's national space agency. KARI, established in 1989, is headquartered in Daejeon, South Korea. The satellite represents an important achievement for South Korea's space program.

### Alternative Names and Identifiers
Chollian is known by several aliases:
- GEO-KOMPSAT-1
- COMS-1
- Communication, Ocean and Meteorological Satellite 1
- Cheollian
- 통신해양기상위성 1호 (Korean)
- 천리안위성 (Korean)
- 천리안 위성 (Korean)
- 통신해양기상위성 (Korean)

### Wikipedia and Commons Presence
Chollian has a dedicated Wikipedia page with content in multiple languages including English, Korean, Japanese, Chinese, German, French, Spanish, Finnish, and Portuguese. It has a presence on Wikimedia Commons with images available for public use. The entity has 10 sitelinks across Wikimedia projects.

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013
3. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2010-032A)