# Cosmos 1125
**Wikidata**: [Q12907299](https://www.wikidata.org/wiki/Q12907299)  
**Source**: https://4ort.xyz/entity/cosmos-1125

## Summary
Cosmos 1125 (also Kosmos 1125) is a Strela-2M class Soviet/Russian communications satellite launched on 1979-08-28. It was placed into flight by a Kosmos-3M rocket from Plesetsk Cosmodrome Site 132.

## Key Facts
- Cosmos 1125 is an instance of the Strela-2M communications satellite class.  
- Alternate name: Kosmos 1125.  
- COSPAR ID: 1979-078A.  
- Spacecraft number (SCN): 11510.  
- Launch date: 1979-08-28.  
- Launch site: Plesetsk Cosmodrome Site 132.  
- Launch vehicle: Kosmos-3M (a Russian/Soviet rocket).  
- Significant event recorded: rocket launch from Plesetsk Cosmodrome Site 132 on 1979-08-28 with a recorded event duration of 00:55:00.  
- Wolfram Language entity code: Entity["Satellite", "11510"].  
- Wikipedia language entries exist for mk, sh, and sr.

## FAQs
### Q: What is Cosmos 1125?
A: Cosmos 1125 is a Strela-2M class communications satellite launched on 1979-08-28 and cataloged under COSPAR ID 1979-078A.

### Q: When and where was Cosmos 1125 launched?
A: Cosmos 1125 was launched on 1979-08-28 from Plesetsk Cosmodrome Site 132.

### Q: Which rocket launched Cosmos 1125?
A: Cosmos 1125 was launched by a Kosmos-3M rocket, a Russian/Soviet launch vehicle.

### Q: How is Cosmos 1125 identified in catalogs?
A: It is identified by COSPAR ID 1979-078A and spacecraft number (SCN) 11510; it also has a Wolfram Language entity code Entity["Satellite","11510"].

## Why It Matters
Cosmos 1125 is one example of the Strela-2M line of Soviet/Russian communications satellites, a family that provided store-and-forward communications capability for the Soviet space infrastructure. Its launch from Plesetsk Cosmodrome by a Kosmos-3M rocket on 28 August 1979 illustrates routine operational activity in the Kosmos satellite program and the use of Kosmos-3M vehicles and Plesetsk Site 132 for placing such satellites into orbit. As a cataloged object (COSPAR 1979-078A, SCN 11510), Cosmos 1125 contributes to historical records of Soviet-era space operations and to long-term datasets tracking satellite launches, vehicle usage, and launch-site activity. Entries in multiple-language Wikipedias and a Wolfram Language entity code indicate that the satellite is documented across data and reference systems used by researchers and archivists.

## Notable For
- Being a Strela-2M model communications satellite within the Kosmos designation series.  
- Launch date and cataloging: COSPAR ID 1979-078A and SCN 11510.  
- Launched from Plesetsk Cosmodrome Site 132, a primary Soviet/Russian military spaceport.  
- Use of the Kosmos-3M launch vehicle, a widely used Soviet/Russian rocket.  
- Recorded significant launch event with a 00:55:00 event duration on 1979-08-28.

## Body
### Identifiers and Classification
- Name: Cosmos 1125 (alias Kosmos 1125).  
- Instance of: Strela-2M (model of Soviet/Russian communications satellite).  
- COSPAR ID: 1979-078A.  
- Spacecraft number (SCN): 11510.  
- Wolfram Language entity: Entity["Satellite", "11510"].  
- Wikipedia language entries: mk, sh, sr.  
- Sitelink count: 3.

### Launch Details
- Launch date (point in time): 1979-08-28.  
- Launch site / start point: Plesetsk Cosmodrome Site 132.  
- Launch vehicle: Kosmos-3M — identified as a Russian/Soviet rocket.  
- Significant event recorded: rocket launch from Plesetsk Cosmodrome Site 132 on 1979-08-28 with qualifier duration 00:55:00.

### Mission Role
- Classified as a Strela-2M communications satellite model.  
- As a Strela-2M instance, it belongs to a class described as Soviet/Russian communications satellites.

### Documentation and References
- Catalog and metadata entries include COSPAR ID 1979-078A and SCN 11510.  
- Referenced in database systems that assign a Wolfram Language entity code.  
- Has Wikipedia entries in multiple language editions (mk, sh, sr).

## References

1. Jonathan's Space Report