# Cosmos 1635
**Wikidata**: [Q12753373](https://www.wikidata.org/wiki/Q12753373)  
**Source**: https://4ort.xyz/entity/cosmos-1635

## Summary
Cosmos 1635 was a Soviet satellite launched on March 21, 1985, designated as part of the Strela-1M class of spacecraft. It was deployed using a Kosmos-3M launch vehicle from the Plesetsk Cosmodrome Site 132. The satellite is identified internationally by the COSPAR ID 1985-023A and the Satellite Catalog Number 15617.

## Key Facts
- **Class:** Strela-1M
- **Launch Date:** March 21, 1985
- **Launch Time:** 00:08:00
- **Launch Vehicle:** Kosmos-3M
- **Launch Site:** Plesetsk Cosmodrome Site 132
- **COSPAR ID:** 1985-023A
- **Satellite Catalog Number (SCN):** 15617
- **Instance of:** Strela-1M satellite
- **Country of Origin:** Soviet Union (associated with the launch vehicle)

## FAQs
### Q: When was Cosmos 1635 launched?
A: Cosmos 1635 was launched on March 21, 1985, at 00:08:00 UTC.

### Q: What type of satellite is Cosmos 1635?
A: It is classified as a Strela-1M satellite.

### Q: What rocket was used to launch Cosmos 1635?
A: The satellite was launched aboard a Kosmos-3M rocket.

### Q: Where did the launch of Cosmos 1635 take place?
A: The launch took place at the Plesetsk Cosmodrome Site 132.

## Why It Matters
Cosmos 1635 represents a specific data point within the extensive Soviet space program, specifically contributing to the operational history of the Strela-1M satellite series. Launched in the mid-1980s, this mission illustrates the continued use of the Kosmos-3M launch vehicle, a workhorse rocket for the Soviet Union, renowned for its reliability in deploying small satellites. The mission is also a component of the broader "Kosmos" designation system, which the Soviet Union utilized to categorize a wide array of military and scientific satellites. The detailed tracking of this object—evidenced by its precise launch time and inclusion in catalogs like Wolfram and various Wikipedia languages—highlights its persistence in international space surveillance records.

## Notable For
- Being a member of the **Strela-1M** class of satellites.
- Launching from **Plesetsk Cosmodrome Site 132**, a key Soviet/Russian launch complex.
- Being successfully deployed by the **Kosmos-3M** rocket, a vehicle with a long operational history.
- Having a precise recorded launch time of **00:08:00**.
- Inclusion in the **Satellite database with ID 15617** and Wolfram Language entity codes.

## Body

### Mission Identity and Classification
Cosmos 1635 is officially classified as an instance of the **Strela-1M** satellite system. In international catalogs, it is tracked under the Satellite Catalog Number (SCN) **15617** and carries the COSPAR international designator **1985-023A**. The "1985" in the ID indicates the year of launch, while "023" signifies it was the 23rd successful orbital launch of that year globally. The entity is also recognized in computational databases, assigned the Wolfram Language entity code `Entity["Satellite", "15617"]`.

### Launch Specifications
The satellite was successfully launched on **March 21, 1985**. The mission utilized the **Kosmos-3M** rocket, a two-stage launch vehicle developed in the Soviet Union (indicated by source references to Russia/Soviet Union origins).

The launch originated from **Plesetsk Cosmodrome Site 132**, a specific launch complex used frequently for Kosmos-3M flights. The liftoff occurred at a precise time of **00:08:00**.

### Related Entities
The structural knowledge regarding Cosmos 1635 connects it to two primary classes of hardware:
*   **Strela-1M:** The specific class/model of the satellite payload.
*   **Kosmos-3M:** The launch vehicle class responsible for putting the payload into orbit.

Information regarding this satellite is maintained across multiple language wikis, including Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).

## References

1. Jonathan's Space Report