# Firewheel Sub-Sat 1

> This sub-payload would have been ejected from FIRE-A, and carried diagnostic instruments for observation of the ion releases in the night magnetosphere

**Wikidata**: [Q113274017](https://www.wikidata.org/wiki/Q113274017)  
**Source**: https://4ort.xyz/entity/firewheel-sub-sat-1

## Summary
Firewheel Sub-Sat 1 is a spacecraft designated as a sub-payload intended to be ejected from the larger FIRE-A vehicle. It was equipped with diagnostic instruments designed to observe ion releases specifically within the night magnetosphere. The payload was assigned the NSSDCA ID FIRE-E and was scheduled for launch in 1980.

## Key Facts
- **Instance of:** Spacecraft
- **NSSDCA ID:** FIRE-E
- **Launch Date:** May 23, 1980
- **Launch Vehicle:** Ariane
- **Launch Site:** Kourou
- **Parent Payload:** FIRE-A (the sub-satellite was to be ejected from this vehicle)
- **Primary Function:** Diagnostic observation of ion releases
- **Operational Zone:** Night magnetosphere

## FAQs
### Q: What was the primary mission of Firewheel Sub-Sat 1?
A: The satellite was designed to carry diagnostic instruments for the specific purpose of observing ion releases in the night magnetosphere.

### Q: How was Firewheel Sub-Sat 1 deployed?
A: The spacecraft was designed as a sub-payload that would have been ejected from the main FIRE-A spacecraft.

### Q: What launch vehicle was used for Firewheel Sub-Sat 1?
A: The entity is associated with the Ariane rocket family, with a specific launch date listed as May 23, 1980, from Kourou.

## Why It Matters
Firewheel Sub-Sat 1 represents a specialized approach to space diagnostics, functioning as a subordinate yet critical component of a larger mission architecture. By design, it was to be ejected from the main FIRE-A vehicle, demonstrating an early utilization of sub-payload deployment strategies to extend the observational reach of a primary spacecraft. Its focus on the "night magnetosphere" indicates a targeted scientific effort to understand specific atmospheric and magnetic phenomena that occur in the Earth's shadow, utilizing distinct "ion releases" as the subject of study.

The mission also holds significance within the context of early European spaceflight endeavors. Being associated with the Ariane rocket family and launching from Kourou, the project highlights the logistical and technical frameworks established in 1980 for accessing space. Although classified as a "sub-sat," its role in capturing diagnostic data illustrates the layered complexity of magnetospheric research, where multiple instruments and vehicles often operate in concert to provide a comprehensive view of space weather and magnetic interactions.

## Notable For
- Being a deployable sub-payload ejected from a parent spacecraft (FIRE-A).
- Specific focus on the "night magnetosphere" rather than general atmospheric observation.
- Inclusion of diagnostic instrumentation for ion release monitoring.
- Association with the Ariane launch vehicle family during the 1980s.

## Body
### Mission Profile and Design
Firewheel Sub-Sat 1 is classified as a spacecraft, specifically functioning as a sub-payload. Its operational design involved a physical ejection from the main vehicle, FIRE-A. This deployment method was intended to facilitate independent movement relative to the main craft, allowing for specific diagnostic angles and distances required for its scientific objectives.

### Scientific Objectives
The primary scientific mandate of the sub-satellite was the observation of ion releases. To achieve this, it carried a suite of diagnostic instruments. The target zone for these observations was the night magnetosphere, a specific region of the Earth's magnetosphere that faces away from the Sun.

### Launch and Logistics
The mission was integrated into the launch schedule of the Ariane rocket family, a lineage of European launch vehicles. The designated launch point was the Kourou spaceport. Records indicate a specific launch date association of May 23, 1980. The spacecraft is cataloged under the NSSDCA ID FIRE-E.