# Cosmos 539
**Wikidata**: [Q12907736](https://www.wikidata.org/wiki/Q12907736)  
**Source**: https://4ort.xyz/entity/cosmos-539

## Summary
Cosmos 539 is a Soviet-era Kosmos series satellite launched on 21 December 1972. It was placed into orbit from Plesetsk Cosmodrome Site 132 by a Kosmos-3M launch vehicle (COSPAR ID 1972-102A).

## Key Facts
- Cosmos 539 is an instance of the Kosmos series of Soviet and Russian military satellites.  
- COSPAR identifier: 1972-102A.  
- Launch date (UTC): 1972-12-21.  
- Launch site: Plesetsk Cosmodrome Site 132.  
- Launch vehicle: Kosmos-3M (rocket class originating in the Soviet Union / Russia).  
- Spacecraft catalogue number (SCN): 06319.  
- Significant event recorded: rocket launch from Plesetsk Cosmodrome Site 132 at 02:05:00 on 1972-12-21.  
- Alternate name / alias: Kosmos 539.  
- Wikipedia coverage in languages: Hungarian (hu), Macedonian (mk), Serbo-Croatian/Serbian variants (sh, sr).  
- Google Knowledge Graph ID: /g/12377jb5.

## FAQs
### Q: What is Cosmos 539?
A: Cosmos 539 is a satellite in the Soviet/Russian Kosmos series that was launched on 21 December 1972. It is catalogued under COSPAR ID 1972-102A and SCN 06319.

### Q: When and from where was Cosmos 539 launched?
A: Cosmos 539 was launched on 1972-12-21 from Plesetsk Cosmodrome Site 132. The recorded launch time is 02:05:00 (UTC) on that date.

### Q: What rocket placed Cosmos 539 into orbit?
A: The satellite was launched by a Kosmos-3M launch vehicle, a rocket class associated with the Soviet Union and Russia.

### Q: Is Cosmos 539 part of a military program?
A: Cosmos 539 is an instance of the Kosmos series, which is described as a series of Soviet and Russian military satellites.

## Why It Matters
Cosmos 539 is a data point in the long-running Kosmos programme, which provided the Soviet Union and later Russia with a flexible family of satellites serving military and other government purposes. As a Kosmos-series satellite launched in late 1972, Cosmos 539 illustrates the operational use of the Plesetsk Cosmodrome and the Kosmos-3M launch vehicle during that period. The Kosmos programme was used to deploy diverse payloads under a unified designation, which helped standardize launch procedures and satellite cataloguing for Soviet military space activity. The Kosmos-3M rocket was a commonly used vehicle for medium-weight payloads, and launches from Plesetsk Site 132 reflect the northern launch infrastructure that supported Soviet orbital operations. Records such as COSPAR ID 1972-102A and SCN 06319 ensure Cosmos 539’s place in international space object catalogues, enabling historical and technical research, orbital tracking, and cross-referencing across spaceflight databases and multilingual encyclopedic entries.

## Notable For
- Being an entry in the Kosmos series of Soviet/Russian military satellites (instance_of Kosmos).  
- Launch on 21 December 1972 (COSPAR 1972-102A) from Plesetsk Cosmodrome Site 132.  
- Use of the Kosmos-3M rocket, a widely deployed Soviet/Russian launch vehicle.  
- Precise catalog identifiers: SCN 06319 and Google Knowledge Graph ID /g/12377jb5.  
- Availability of Wikipedia coverage in multiple languages (hu, mk, sh, sr).

## Body
### Identification
- Name / alias: Cosmos 539.  
- SCN (spacecraft catalogue number): 06319.  
- COSPAR ID: 1972-102A.  
- Google Knowledge Graph ID: /g/12377jb5.

### Classification
- Instance of: Kosmos.  
- The Kosmos designation identifies it as part of a series of Soviet and Russian military satellites.

### Launch details
- Launch date: 1972-12-21.  
- Launch site: Plesetsk Cosmodrome Site 132.  
- Launch vehicle: Kosmos-3M rocket (associated with the Soviet Union / Russia).  
- Recorded launch event time: 02:05:00 on 1972-12-21 at Plesetsk Cosmodrome Site 132.

### Program context
- Kosmos is a series used by the Soviet Union and Russia for a broad range of military satellite missions.  
- The Kosmos-3M was a commonly used launch vehicle for Kosmos-series payloads during this era.  
- Plesetsk Cosmodrome Site 132 served as the ground complex for this launch.

### Bibliographic and public records
- Wikipedia language editions noting Cosmos 539: Hungarian (hu), Macedonian (mk), Serbo-Croatian/Serbian variants (sh, sr).  
- Sitelink count recorded: 4.

## References

1. Jonathan's Space Report