# OICETS

> Japanese communications demonstration satellite

**Wikidata**: [Q957193](https://www.wikidata.org/wiki/Q957193)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/OICETS)  
**Source**: https://4ort.xyz/entity/oicets

## Summary
OICETS (Optical Inter-orbit Communications Engineering Test Satellite) is a Japanese communications demonstration satellite launched in 2005 to test optical inter-satellite communication technologies. It was operated by the Japan Aerospace Exploration Agency (JAXA) and decommissioned in 2009.

## Key Facts
- **Class**: Technology demonstration spacecraft and communications satellite
- **Mass**: 570 kilograms
- **Aliases**: Optical Inter-orbit Communications Engineering Test Satellite, Kirari
- **Country of origin**: Japan
- **Operator**: Japan Aerospace Exploration Agency (JAXA)
- **Launch date**: August 23, 2005, at 21:09:59 UTC from Baikonur Cosmodrome Site 109
- **Launch vehicle**: Dnepr rocket
- **Orbit**: Low Earth orbit
- **Decommissioning date**: September 24, 2009
- **Power source**: Spacecraft solar array (2 panels)

## FAQs
### Q: What was the purpose of OICETS?
A: OICETS was designed to demonstrate optical inter-satellite communication technologies, which are more efficient than traditional radio-frequency systems.

### Q: Who operated OICETS?
A: The satellite was operated by the Japan Aerospace Exploration Agency (JAXA).

### Q: When was OICETS launched and decommissioned?
A: OICETS was launched on August 23, 2005, and decommissioned on September 24, 2009.

### Q: What type of orbit did OICETS use?
A: OICETS operated in a low Earth orbit.

### Q: What was the mass of OICETS?
A: The satellite had a mass of 570 kilograms.

## Why It Matters
OICETS played a crucial role in advancing optical communication technologies in space. By demonstrating the feasibility of high-speed optical links between satellites, it paved the way for future satellite constellations and deep-space missions that rely on advanced communication systems. Its success contributed to Japan's leadership in space-based optical communication research, influencing the development of similar technologies for both civilian and military applications.

## Notable For
- **First Japanese optical communication satellite**: OICETS was the first satellite operated by Japan to test optical inter-satellite communication.
- **Technology demonstration**: It successfully demonstrated the potential of laser-based communication for future space missions.
- **Low Earth orbit operations**: OICETS operated in a low Earth orbit, making it a key player in near-Earth communication research.
- **Decommissioning in 2009**: The satellite was decommissioned after four years of operation, marking the end of its mission.

## Body
### Overview
OICETS (Optical Inter-orbit Communications Engineering Test Satellite) was a Japanese satellite developed to test optical communication technologies in space. Launched on August 23, 2005, it was operated by the Japan Aerospace Exploration Agency (JAXA) and decommissioned on September 24, 2009.

### Mission Objectives
The primary goal of OICETS was to demonstrate the feasibility of optical inter-satellite communication, which offers higher data rates and more secure communication compared to traditional radio-frequency systems. The satellite was equipped with advanced optical terminals to establish high-speed links between satellites.

### Technical Specifications
- **Mass**: 570 kilograms
- **Power Source**: Two spacecraft solar arrays
- **Orbit**: Low Earth orbit
- **Launch Vehicle**: Dnepr rocket, launched from Baikonur Cosmodrome Site 109

### Achievements
OICETS successfully demonstrated the potential of optical communication in space, contributing to the development of future satellite constellations and deep-space missions. Its mission laid the groundwork for Japan's advancements in space-based optical communication technologies.

### Legacy
OICETS remains a significant milestone in Japan's space exploration efforts, particularly in the field of optical communication. Its decommissioning in 2009 marked the end of its mission, but its technological contributions continue to influence ongoing research in space communication.

## References

1. [Source](https://space.skyrocket.de/doc_sdat/oicets.htm)
2. Jonathan's Space Report
3. Freebase Data Dumps. 2013