# SARI

> This satellite was part of France's contribution to the International Magnetospheric Study. The satellite's objectives included the study of the thermal plasma within the magnetosphere and the structure and origins of natural VLF noise.

**Wikidata**: [Q113275471](https://www.wikidata.org/wiki/Q113275471)  
**Source**: https://4ort.xyz/entity/sari

## Summary
SARI is an artificial satellite that formed part of France's contribution to the International Magnetospheric Study. Its stated objectives were to study the thermal plasma within Earth's magnetosphere and to investigate the structure and origins of natural very-low-frequency (VLF) noise.

## Key Facts
- SARI is an artificial satellite (instance_of: artificial satellite).
- NSSDC identifier for the mission is "SARI" (nssdca_id: SARI).
- The satellite was part of France's contribution to the International Magnetospheric Study.
- Primary scientific objectives included studying the thermal plasma within the magnetosphere.
- A principal objective was investigating the structure and origins of natural VLF (very-low-frequency) noise.
- Launch start point (launch site) is listed as Kourou.
- Launch vehicle listed as Diamant, a French expendable satellite launcher.
- The launch vehicle Diamant is associated with France.

## FAQs
### Q: What is SARI?
A: SARI is an artificial satellite flown as part of France's contribution to the International Magnetospheric Study, focused on magnetospheric plasma and natural VLF noise research.

### Q: Where and how was SARI launched?
A: The recorded launch start point is Kourou, and the listed launch vehicle is the Diamant launch vehicle, a French expendable satellite launcher.

### Q: What scientific questions did SARI address?
A: SARI's mission objectives were to study thermal plasma in the magnetosphere and to investigate the structure and origins of natural very-low-frequency (VLF) noise.

## Why It Matters
SARI represents a targeted scientific effort to probe key components of Earth's near-space environment. By focusing on thermal plasma within the magnetosphere, the mission addressed the population of charged particles that control magnetospheric dynamics, energy transfer, and interactions with the solar wind. Its work on natural VLF noise aimed to clarify sources and propagation of VLF emissions, which are important for understanding wave–particle interactions, radio propagation in the magnetosphere, and the behavior of trapped particle populations. As part of France's contribution to the International Magnetospheric Study, SARI also exemplified international cooperation in coordinated geospace research. Even without detailed results provided here, missions like SARI contribute to baseline knowledge used by space physicists, help validate theoretical models of the magnetosphere, and inform later satellite missions and ground-based observational campaigns.

## Notable For
- Being part of France's contribution to the International Magnetospheric Study.
- Explicit scientific focus on thermal plasma within the magnetosphere.
- Explicit scientific focus on the structure and origins of natural VLF noise.
- Recorded launch start point of Kourou and use of the French Diamant expendable launcher.
- Registered NSSDC identifier "SARI".

## Body

### Overview
- Name: SARI.
- Type: artificial satellite.
- Mission context: part of France's contribution to the International Magnetospheric Study.
- High-level objectives: thermal plasma studies and VLF noise structure/origins.

### Mission objectives
- Study the thermal plasma within the magnetosphere.
- Investigate the structure and origins of natural VLF (very-low-frequency) noise.
- Support coordinated international magnetospheric research under the International Magnetospheric Study framework.

### Launch details
- Start point (launch site): Kourou.
- Launch vehicle: Diamant.
- The Diamant launcher is identified as a French expendable satellite launcher.

### Classification and identifiers
- Instance of: artificial satellite.
- NSSDC/NSSDCA identifier: SARI.

### Scientific and program context
- SARI was explicitly tied to the International Magnetospheric Study, indicating coordinated international scientific objectives.
- The mission targets—thermal plasma and VLF emissions—are core topics in magnetospheric physics and space-weather-related research.

### Known limitations in source data
- No launch date, mission duration, operator organization, instrument payload specifics, orbit parameters, or mission results are provided in the available source material.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "SARI",
  "description": "An artificial satellite that was part of France's contribution to the International Magnetospheric Study; its objectives included studying thermal plasma within the magnetosphere and the structure and origins of natural VLF noise.",
  "identifier": "SARI",
  "additionalType": "artificial satellite"
}