# Cosmos 1574
**Wikidata**: [Q12753340](https://www.wikidata.org/wiki/Q12753340)  
**Source**: https://4ort.xyz/entity/cosmos-1574

## Summary
Cosmos 1574 was a Soviet navigation satellite launched on June 21, 1984. Identified by the international designator 1984-062A and Satellite Catalog Number 15055, it belonged to the Nadezhda class of spacecraft. The satellite was deployed into orbit using a Kosmos-3M rocket launched from the Plesetsk Cosmodrome.

## Key Facts
- **Classification:** Cosmos 1574 is an instance of the Nadezhda class of navigation satellites.
- **Launch Date:** The satellite was launched on June 21, 1984.
- **Launch Time:** The specific launch event occurred at 19:40:03 UTC.
- **Launch Site:** It was launched from the Plesetsk Cosmodrome Site 132.
- **Launch Vehicle:** The delivery system used was a Kosmos-3M rocket.
- **COSPAR ID:** The international designation for this object is 1984-062A.
- **Satellite Catalog Number:** It is tracked under the identification number 15055.
- **Alternative Name:** The entity is also known as Kosmos 1574.

## FAQs
### Q: What type of satellite was Cosmos 1574?
A: Cosmos 1574 was a navigation satellite of the Nadezhda class, operated by the Soviet Union.

### Q: When and where was Cosmos 1574 launched?
A: The satellite launched on June 21, 1984, at 19:40:03 from Plesetsk Cosmodrome Site 132.

### Q: What rocket was used to deploy Cosmos 1574?
A: Cosmos 1574 was deployed using a Kosmos-3M rocket, a launch vehicle associated with both the Soviet Union and Russia.

## Why It Matters
Cosmos 1574 serves as a specific historical data point within the Soviet space program's efforts to maintain and expand satellite navigation capabilities during the Cold War. As part of the Nadezhda (Hope) series, this satellite contributed to the constellation used for navigation, likely supporting maritime and aviation coordinates where precision is critical. The launch demonstrates the operational tempo of the Soviet space infrastructure in 1984, specifically utilizing the Plesetsk Cosmodrome, which was a primary site for military and scientific launches.

The use of the Kosmos-3M launch vehicle for this mission highlights the reliability and versatility of this specific rocket class for deploying medium-weight payloads like navigation satellites. For space historians and orbital analysts, the specific identifiers—such as the COSPAR ID (1984-062A) and the precise launch time—are essential for tracking orbital debris, understanding orbital decay rates, and mapping the history of objects in the space catalog (SCN 15055). Consequently, Cosmos 1574 represents not just a single machine, but a node in the broader network of space-based infrastructure that underpinned Soviet navigation logistics.

## Notable For
- Being a distinct unit within the **Nadezhda navigation satellite constellation**.
- Launching from **Plesetsk Cosmodrome Site 132**, a facility with extensive historical use for Soviet defense and scientific missions.
- Deployment via the **Kosmos-3M rocket**, a workhorse launch vehicle for the Soviet and Russian space programs.
- precise tracking via **Satellite Catalog Number 15055** and **COSPAR ID 1984-062A**.

## Body

### Classification and Identity
Cosmos 1574 is officially classified as an instance of the Nadezhda class of satellites. In the context of international tracking, it holds the COSPAR ID 1984-062A and the Satellite Catalog Number (SCN) 15055. In the Wolfram Language, it is represented as `Entity["Satellite", "15055"]`.

### Launch Specifics
The satellite's journey to orbit began with a significant event classified as a "rocket launch."
*   **Date and Time:** The launch took place on June 21, 1984, at exactly 19:40:03.
*   **Location:** The origin point was Plesetsk Cosmodrome Site 132.
*   **Vehicle:** The launch vehicle utilized was the Kosmos-3M, a two-stage rocket used frequently for launching Kosmos-series satellites.

### Contextual Relations
The Cosmos 1574 mission is directly related to two major entities in aerospace history:
*   **Nadezhda:** The satellite class, serving as a navigation satellite for the Soviet Union.
*   **Kosmos-3M:** The launch vehicle, a rocket utilized by both the Soviet Union and Russia (referenced with a sitelink count of 16, indicating high documentation coverage).

## References

1. Jonathan's Space Report