# Cosmos 1855
**Wikidata**: [Q12753484](https://www.wikidata.org/wiki/Q12753484)  
**Source**: https://4ort.xyz/entity/cosmos-1855

## Summary
Cosmos 1855 was a Soviet satellite launched on June 16, 1987, belonging to the Strela-1M class of spacecraft. It was deployed from the Plesetsk Cosmodrome Site 132 using a Kosmos-3M launch vehicle. The satellite is identified by the international designator 1987-051D and the Satellite Catalog Number 18116.

## Key Facts
- **Class:** Strela-1M (satellite).
- **Launch Date:** June 16, 1987.
- **Launch Time:** 17:51:00.
- **Launch Site:** Plesetsk Cosmodrome Site 132.
- **Launch Vehicle:** Kosmos-3M (Russian rocket).
- **COSPAR ID:** 1987-051D.
- **Satellite Catalog Number (SCN):** 18116.
- **Instance Type:** Satellite.
- **Also Known As:** Kosmos 1855.

## FAQs
### Q: What type of satellite was Cosmos 1855?
A: Cosmos 1855 was a satellite of the Strela-1M class. It was part of a series of Soviet spacecraft designated under the general "Cosmos" program label.

### Q: When and how was Cosmos 1855 launched?
A: Cosmos 1855 was launched on June 16, 1987, at 17:51:00. It was delivered to orbit by a Kosmos-3M rocket launched from the Plesetsk Cosmodrome Site 132.

### Q: What are the international identifiers for Cosmos 1855?
A: The satellite holds the COSPAR international designator 1987-051D and the Satellite Catalog Number 18116. It is also categorized in the Wolfram Language as `Entity["Satellite", "18116"]`.

## Why It Matters
Cosmos 1855 serves as a specific historical data point within the extensive Soviet "Cosmos" program, which encompassed a wide array of military and scientific satellites. As a unit of the **Strela-1M class**, this entity represents a specific generation of Soviet space technology utilized during the late Cold War era. The meticulous recording of its launch parameters—specifically the precise time of 17:51:00 and the use of the **Kosmos-3M** launch vehicle—provides valuable data for space historians and analysts tracking the usage and cadence of the Plesetsk Cosmodrome.

The existence of detailed identifiers, such as the COSPAR ID (1987-051D) and the Satellite Catalog Number (18116), highlights the importance of this object in the global catalog of artificial satellites. These identifiers allow researchers to distinguish this specific satellite from the thousands of other "Cosmos" designations, ensuring accurate tracking of orbital objects launched in 1987. Furthermore, the linkage to the Kosmos-3M rocket underscores the reliability and frequency of this launch system during the Soviet era, serving as a verifiable example of its operational history at Site 132.

## Notable For
- Being a documented member of the **Strela-1M** satellite class.
- possessing a precise, recorded launch time of **17:51:00**.
- Being launched by the **Kosmos-3M**, a prominent Russian/Soviet rocket type.
- Being tracked under the specific international designator **1987-051D**.
- Appearing in the Wolfram Language entity database as a distinct satellite object.

## Body

### Classification and Identity
Cosmos 1855 (alternatively spelled Kosmos 1855) is an artificial satellite classified as an instance of the **Strela-1M** system. It is recorded in space tracking databases with the specific **Satellite Catalog Number (SCN) 18116**. The international community identifies this object via the COSPAR ID **1987-051D**, which indicates it was the "D" component (often denoting a specific payload or object in a launch sequence) associated with the 51st launch of 1987.

### Launch Details
The satellite was successfully launched on **June 16, 1987**. The launch event originated from **Plesetsk Cosmodrome Site 132**, a major spaceport located in the Soviet Union (modern-day Russia).

The launch was executed using a **Kosmos-3M** vehicle, a two-stage Russian rocket frequently used during this period for deploying lightweight military and scientific satellites. The specific significant event of the rocket launch is recorded as occurring exactly at **17:51:00**.

### Data Availability
In addition to standard space tracking records, Cosmos 1855 is represented in computational knowledge bases, specifically the **Wolfram Language**, where it is encoded as `Entity["Satellite", "18116"]`. At the time of record aggregation, the entity had sitelinks available in three languages: Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).

## References

1. Jonathan's Space Report