# Cosmos 1842
**Wikidata**: [Q12753479](https://www.wikidata.org/wiki/Q12753479)  
**Source**: https://4ort.xyz/entity/cosmos-1842

## Summary
Cosmos 1842 was a Soviet satellite launched on April 27, 1987, as part of the nation's space program. Classified as a Tselina-D model, its primary function was signals intelligence. The satellite was deployed into orbit using a Tsyklon-3 launch vehicle from the Plesetsk Cosmodrome.

## Key Facts
- **Classification:** Instance of Tselina-D, a model of Soviet signals intelligence satellite.
- **Launch Date:** April 27, 1987.
- **Launch Vehicle:** Tsyklon-3 (Soviet/Ukrainian expendable launch vehicle).
- **Launch Site:** Plesetsk Cosmodrome Site 32.
- **COSPAR ID:** 1987-038A.
- **Satellite Catalog Number (SCN):** 17911.
- **Alternate Name:** Kosmos 1842.
- **Significant Event:** Rocket launch occurring at 00:00:00 on April 27, 1987.

## FAQs
### Q: What type of satellite was Cosmos 1842?
A: Cosmos 1842 was a Tselina-D class satellite, which is a model of Soviet signals intelligence satellite used for gathering electronic information.

### Q: When and where was Cosmos 1842 launched?
A: The satellite was launched on April 27, 1987, from the Plesetsk Cosmodrome Site 32.

### Q: What rocket was used to deploy Cosmos 1842?
A: It was launched aboard a Tsyklon-3, a Soviet/Ukrainian expendable launch vehicle.

## Why It Matters
Cosmos 1842 serves as a representative example of the Soviet Union's extensive signals intelligence (SIGINT) operations during the late Cold War. As a unit of the **Tselina-D** class, it illustrates the technological infrastructure the USSR employed to monitor and gather electronic signals from space. The existence of such satellites highlights the strategic importance of space-based surveillance in military and geopolitical contexts during the 1980s.

Furthermore, the mission demonstrates the reliability and capability of the **Tsyklon-3** launch vehicle, a key component of the Soviet space fleet developed in Ukraine. Launching from **Plesetsk Cosmodrome Site 32**, Cosmos 1842 contributed to the vast network of "Cosmos" designated satellites, a series used to obfuscate the specific military nature of Soviet payloads. For analysts and historians, entries like Cosmos 1842 provide essential data points for mapping the timeline and scope of Soviet space-based reconnaissance capabilities.

## Notable For
- **Signals Intelligence:** Functioned as part of the Tselina-D program, specifically designed for Soviet signals intelligence.
- **Launch Configuration:** Utilized the Tsyklon-3 expendable launch vehicle.
- **Historical Context:** Operated during the late Cold War period (1987).
- **Launch Infrastructure:** Deployed from the specific technical complex at Plesetsk Cosmodrome Site 32.

## Body
### Mission Classification
Cosmos 1842 is formally classified as an **instance of Tselina-D**. The Tselina-D is defined in the source material as a model of Soviet signals intelligence satellite. The satellite is also identified by the alias **Kosmos 1842**.

### Launch Details
The satellite's deployment is defined by a specific significant event categorized as a **rocket launch**.
- **Date:** The launch took place on April 27, 1987.
- **Time:** The recorded timestamp for the event is 00:00:00.
- **Location:** The launch originated from **Plesetsk Cosmodrome Site 32**.
- **Vehicle:** The payload was delivered using a **Tsyklon-3**, identified as a Soviet/Ukrainian expendable launch vehicle.

### Technical Identifiers
Specific identifiers allow for the precise tracking and cataloging of Cosmos 1842 in international databases and knowledge bases.
- **COSPAR ID:** 1987-038A.
- **Satellite Catalog Number (SCN):** 17911.
- **Wolfram Language Entity Code:** `Entity["Satellite", "17911"]`.

## References

1. Jonathan's Space Report