# Firewheel Sub-Sat 3

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

**Wikidata**: [Q113274063](https://www.wikidata.org/wiki/Q113274063)  
**Source**: https://4ort.xyz/entity/firewheel-sub-sat-3

## Summary
Firewheel Sub-Sat 3 (cataloged as FIRE-C) is a spacecraft payload designed to be ejected from the parent vehicle FIRE-A. Its mission was to utilize diagnostic instruments to observe ion releases specifically within the night magnetosphere. The spacecraft launched on May 23, 1980, aboard an Ariane rocket from Kourou.

## Key Facts
- **NSSDCA ID:** FIRE-C
- **Instance of:** Spacecraft
- **Launch Date:** May 23, 1980
- **Launch Vehicle:** Ariane (European rocket family)
- **Start Point:** Kourou
- **Deployment Method:** Ejected from the FIRE-A spacecraft
- **Primary Function:** Carrying diagnostic instruments for observation
- **Target Observation:** Ion releases in the night magnetosphere

## FAQs
### Q: What was the primary mission of Firewheel Sub-Sat 3?
A: The primary mission was to conduct observations of ion releases in the night magnetosphere. It carried diagnostic instruments specifically designed for this scientific purpose.

### Q: How was Firewheel Sub-Sat 3 deployed?
A: The spacecraft was designed as a "sun-payload" that would be ejected from a parent spacecraft known as FIRE-A.

### Q: When and where did Firewheel Sub-Sat 3 launch?
A: It launched on May 23, 1980, from the spaceport at Kourou.

### Q: What rocket was used to launch Firewheel Sub-Sat 3?
A: The entity was launched using a rocket from the Ariane family, a European launch vehicle.

## Why It Matters
Firewheel Sub-Sat 3 serves as a specialized component of space physics research, specifically targeting the dynamics of the magnetosphere. By utilizing a "sub-satellite" configuration ejected from a main vehicle (FIRE-A), this entity represents a complex approach to space observation, allowing for distributed measurements or specific vantage points that a single craft could not achieve. Its focus on the "night magnetosphere" addresses a specific region of geophysical interest concerning ion behavior.

The mission also highlights the capabilities of the Ariane rocket family during the early 1980s, demonstrating the European Union's role in launching scientific payloads. The use of diagnostic instruments on this sub-satellite contributes valuable data regarding ion releases, which are critical phenomena in the understanding of space weather and planetary magnetic fields. The successful integration of this sub-payload with the main FIRE-A vehicle illustrates technical proficiency in spacecraft design and mission planning during that era.

## Notable For
- **Specialized Design:** Structured as a sun-payload intended for ejection from a parent craft (FIRE-A) rather than operating as a standalone probe from launch.
- **Specific Scientific Target:** Focused exclusively on the observation of ion releases in the night magnetosphere.
- **Launch Vehicle:** Utilized the Ariane rocket, a prominent European launch system.
- **Classification:** Identified uniquely in catalogs as FIRE-C, distinguishing it from its parent vehicle FIRE-A.

## Body
### Mission Profile and Deployment
Firewheel Sub-Sat 3 is classified as a spacecraft designed for a specific role within a larger mission architecture. Unlike primary satellites, this entity functioned as a sub-satellite (identified as FIRE-C). Its operational life was designed to begin subsequent to its ejection from the main spacecraft, FIRE-A. This deployment strategy classifies the payload as a "sun-payload," intended to separate from the core vehicle to perform independent or complementary measurements.

### Scientific Instrumentation
The spacecraft was equipped with diagnostic instruments. The sole function of these tools was the observation and analysis of ion releases. The specific area of interest for these observations was the night magnetosphere, a region of space affected by the planet's magnetic field on the side facing away from the sun.

### Launch and Operations
The logistics of the mission were facilitated by the European space infrastructure.
*   **Launch Date:** The mission timeline commenced on May 23, 1980.
*   **Launch Site:** The departure point was Kourou, a standard launch site for the Ariane program.
*   **Vehicle:** The launch was executed using the Ariane rocket family.