# D2B

> artificial satellite

**Wikidata**: [Q16320187](https://www.wikidata.org/wiki/Q16320187)  
**Source**: https://4ort.xyz/entity/d2b

## Summary
D2B is a spacecraft launched on September 27, 1975, utilizing the French Diamant expendable launch vehicle. It was deployed from the ELA-3 launch site and is cataloged internationally under the COSPAR ID 1975-092A.

## Key Facts
*   **Entity Type:** Spacecraft (vehicle designed to fly in space).
*   **Launch Date:** September 27, 1975.
*   **Launch Vehicle:** Diamant (a French expendable satellite launcher).
*   **Launch Site:** ELA-3 (Ensemble de Lancement Ariane 3).
*   **COSPAR ID:** 1975-092A.
*   **NSSDCA ID:** 1975-092A.
*   **Satellite Catalog Number (SCN):** 08332.
*   **Significant Event:** Rocket launch occurring on September 27, 1975, at ELA-3.
*   **Associated Wikipedia Languages:** French (fr), Hungarian (hu).

## FAQs
### Q: When was D2B launched?
A: D2B was launched on September 27, 1975.

### Q: What rocket was used to launch D2B?
A: The spacecraft was launched using a Diamant rocket, which is a French expendable satellite launcher.

### Q: What is the international identifier for D2B?
A: The COSPAR (Committee on Space Research) ID for D2B is 1975-092A, and its Satellite Catalog Number is 08332.

## Why It Matters
D2B represents a specific entry in the history of space exploration, notably for its association with the Diamant program, which was France's first series of expendable launch vehicles. As a spacecraft launched in the mid-1970s, it contributes to the historical record of European space activities independent of major superpower programs (like those of the US or USSR at the time).

The entry is geographically and technically significant because it utilized the ELA-3 launch site, a facility that would later become famous for the Ariane rocket family. By tracking this object with distinct identifiers like the COSPAR ID and NSSDCA ID, space agencies maintain a precise catalog of orbital debris and historical payloads. The existence of D2B highlights the operational phase of the Diamant launcher, marking a period when France maintained an independent orbital launch capability.

## Notable For
*   **Diamant Program Association:** It is a payload of the Diamant rocket, the first French satellite launcher and the first launcher not built by either the United States or the Soviet Union.
*   **Specific Launch Complex:** It launched from ELA-3, a site historically significant for its subsequent use by the Ariane launch system.
*   **Distinct Identifiers:** It possesses a unique set of tracking IDs (COSPAR 1975-092A and SCN 08332) that distinguish it in global space catalogs.
*   **Dual-Language Documentation:** The entity has specific Wikipedia presence in French and Hungarian, reflecting its international documentation.

## Body

### Mission Profile
D2B is classified as a spacecraft, defined as a vehicle or machine designed to fly in space. Its primary recorded event is a rocket launch that took place on September 27, 1975. The mission was executed from the ELA-3 (Ensemble de Lancement 3) launch complex.

### Launch Specifications
The launch vehicle responsible for placing D2B into space was the **Diamant**. The Diamant rocket is historically significant as a French expendable satellite launcher. The launch operation was conducted out of French jurisdiction via the ELA-3 infrastructure.

### Identification and Tracking
To facilitate tracking and data management, D2B is assigned several standard scientific and military identifiers:
*   **COSPAR ID:** 1975-092A (used for international tracking of space objects).
*   **NSSDCA ID:** 1975-092A (NASA Space Science Data Coordinated Archive ID).
*   **SCN:** 08332 (Satellite Catalog Number).

These identifiers confirm the object's entry into space logs and allow for the correlation of data across different space agencies and archives. The "A" in the COSPAR ID typically designates the main payload or object associated with that specific launch event.

## References

1. Jonathan's Space Report