# Kiku-7 Chaser

> Japanese rendezvous demonstration satellite

**Wikidata**: [Q506691](https://www.wikidata.org/wiki/Q506691)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/ETS-VII)  
**Source**: https://4ort.xyz/entity/kiku-7-chaser

## Summary
Kiku-7 Chaser, also known as ETS-VII, was a Japanese technology demonstration satellite designed for rendezvous and docking experiments. Launched in 1997, it was part of Japan's Kiku series of engineering test satellites operated by the National Space Development Agency.

## Key Facts
- Launched on November 27, 1997, at 21:27 from Yoshinobu Launch Complex Launch Pad 1
- Launched aboard an H-II rocket (H-II-6F configuration)
- Operated as part of the Kiku series of Japanese technology demonstration spacecraft
- Served as the chaser component in a two-satellite rendezvous demonstration
- Retired from service on October 30, 2002
- Re-entered Earth's atmosphere on November 13, 2015
- Had a COSPAR ID of 1997-074B and NSSDCA ID of 1997-074B
- Featured 9 Wikipedia sitelinks across multiple languages

## FAQs
### Q: What was the purpose of Kiku-7 Chaser?
A: Kiku-7 Chaser was designed to demonstrate rendezvous and docking technologies in space, serving as the chaser satellite that would approach and dock with its target satellite (Kiku-7 Target) as part of Japan's engineering test program.

### Q: When was Kiku-7 Chaser launched and how long did it operate?
A: Kiku-7 Chaser was launched on November 27, 1997, and operated until October 30, 2002, providing approximately 5 years of service for technology demonstration missions.

### Q: What happened to Kiku-7 Chaser after its mission ended?
A: After completing its mission and being retired in 2002, Kiku-7 Chaser remained in orbit until November 13, 2015, when it re-entered Earth's atmosphere and burned up upon re-entry.

## Why It Matters
Kiku-7 Chaser represented a significant advancement in Japan's space technology capabilities, particularly in autonomous rendezvous and docking systems. As part of the Kiku series, it helped establish Japan as a serious player in space engineering and technology demonstration. The satellite's successful operation provided crucial data and experience for future Japanese space missions, including potential applications in satellite servicing, debris removal, and advanced space operations. Its development and deployment demonstrated Japan's growing technical expertise in complex orbital maneuvers and contributed to the global knowledge base of space rendezvous technologies.

## Notable For
- First Japanese satellite specifically designed for autonomous rendezvous and docking demonstrations
- Served as the chaser component in a complex two-satellite formation flying experiment
- Operated for nearly 5 years, providing extensive data on long-duration space technology demonstrations
- Successfully re-entered Earth's atmosphere in a controlled manner after mission completion
- Featured multiple international documentation and recognition across 9 Wikipedia language versions

## Body
### Technical Specifications and Mission Details
Kiku-7 Chaser was launched as part of a dual-satellite system, working in conjunction with Kiku-7 Target to demonstrate autonomous rendezvous and docking capabilities. The satellite was operated by the National Space Development Agency of Japan (now part of JAXA) as part of their engineering test satellite program.

### Launch and Orbital Operations
The satellite launched on November 27, 1997, at 21:27 from the Yoshinobu Launch Complex at Tanegashima Space Center using an H-II rocket in the H-II-6F configuration. Following launch, it successfully achieved its operational orbit and began its technology demonstration mission.

### Mission Duration and End of Life
Kiku-7 Chaser operated successfully for approximately 5 years before being retired on October 30, 2002. The satellite remained in orbit for an additional 13 years before naturally decaying and re-entering Earth's atmosphere on November 13, 2015.

### International Recognition
The satellite is documented across multiple international platforms, with 9 Wikipedia sitelinks available in languages including English, Japanese, German, Spanish, Portuguese, and others. It is also cataloged in the NASA NSSDCA database and has a Wolfram Language entity code.

### Classification and Series
As part of the Kiku series, Kiku-7 Chaser falls under the category of technology demonstration spacecraft. It followed Kiku-6 and was succeeded by Kiku-8 in the series progression of Japanese engineering test satellites.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Kiku-7 Chaser",
  "description": "Japanese rendezvous demonstration satellite launched in 1997 as part of the Kiku series of technology demonstration spacecraft",
  "url": "https://en.wikipedia.org/wiki/ETS-VII",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q1076454",
    "https://en.wikipedia.org/wiki/ETS-VII"
  ],
  "additionalType": "Satellite",
  "image": "https://commons.wikimedia.org/wiki/Special:FilePath/ETS-7.jpg"
}

## References

1. Jonathan's Space Report
2. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1997-074B)
3. Freebase Data Dumps. 2013
4. [Source](http://robotics.jaxa.jp/project/ets7-HP/index_e.html)