# Cosmos 1133
**Wikidata**: [Q13566488](https://www.wikidata.org/wiki/Q13566488)  
**Source**: https://4ort.xyz/entity/cosmos-1133

## Summary  
Cosmos 1133 (also written Kosmos 1133) is a Soviet‑built Strela‑1M communications satellite launched on 25 September 1979 from the Plesetsk Cosmodrome using a Kosmos‑3M launch vehicle. It carries the Satellite Catalog Number 11541 and the COSPAR designation 1979‑084D.

## Key Facts  
- **Satellite name:** Cosmos 1133 (alias Kosmos 1133).  
- **Class:** Strela‑1M communications satellite.  
- **COSPAR ID:** 1979‑084D.  
- **Satellite Catalog Number (SCN):** 11541.  
- **Launch date:** 25 September 1979 (21:00 UTC).  
- **Launch site:** Plesetsk Cosmodrome, Site 132, Russian Soviet Federative Socialist Republic.  
- **Launch vehicle:** Kosmos‑3M rocket (Soviet‑built).  
- **Significant event:** Rocket launch from Plesetsk at 21:00 on the launch date.  
- **Wikipedia language editions:** Macedonian (mk), Serbo‑Croatian (sh), Serbian (sr).  
- **Wolfram Language entity code:** `Entity["Satellite", "11541"]`.

## FAQs  
### Q: What was Cosmos 1133?  
**A:** Cosmos 1133 was a Soviet Strela‑1M military communications satellite launched in 1979.

### Q: When and where was Cosmos 1133 launched?  
**A:** It was launched on 25 September 1979 at 21:00 UTC from Plesetsk Cosmodrome Site 132 using a Kosmos‑3M launch vehicle.

### Q: What type of satellite is a Strela‑1M?  
**A:** The Strela‑1M is a class of low‑Earth‑orbit military communications satellites used by the Soviet Union for store‑and‑forward data transmission.

### Q: What launch vehicle carried Cosmos 1133 into orbit?  
**A:** The satellite was placed into orbit by a Kosmos‑3M rocket, a two‑stage launch vehicle developed in the Soviet Union.

### Q: How can I identify Cosmos 1133 in satellite databases?  
**A:** It is listed under Satellite Catalog Number 11541 and COSPAR ID 1979‑084D.

## Why It Matters  
Cosmos 1133 represents a component of the Soviet Union’s extensive Strela series, which provided a reliable, low‑cost communications backbone for military and governmental users during the Cold War. By employing the Strela‑1M design, the satellite offered store‑and‑forward capabilities that allowed data to be transmitted between ground stations even when direct line‑of‑sight was unavailable, enhancing the resilience of Soviet communications networks. Its launch aboard the proven Kosmos‑3M rocket from the strategically located Plesetsk Cosmodrome underscored the USSR’s capacity to deploy numerous low‑Earth‑orbit assets quickly and efficiently. Understanding Cosmos 1133 helps illustrate the evolution of space‑based communications, the operational logistics of Soviet launch infrastructure, and the broader context of satellite constellations that paved the way for modern global data services.

## Notable For  
- Being a Strela‑1M satellite, part of a widely deployed Soviet communications constellation.  
- Launch from Plesetsk Cosmodrome Site 132, a key northern launch complex for military payloads.  
- Utilisation of the Kosmos‑3M launch vehicle, a workhorse of Soviet low‑orbit missions.  
- Assignment of Satellite Catalog Number 11541, enabling precise tracking in international space‑object registries.  
- Inclusion in multiple language Wikipedia editions, reflecting its relevance across former Soviet states.

## Body  

### Overview  
Cosmos 1133, also known as Kosmos 1133, is catalogued as Satellite 11541 in the United States Space‑Track system. It belongs to the Strela‑1M class, a series of low‑Earth‑orbit (LEO) communications satellites built by the Soviet Union for military use.

### Launch Details  
- **Date & Time:** 25 September 1979, 21:00 UTC.  
- **Site:** Plesetsk Cosmodrome, Site 132 (north‑western Russia).  
- **Vehicle:** Kosmos‑3M, a two‑stage launch rocket that was routinely used for placing small to medium payloads into LEO.  
- **Event:** The launch is recorded as a “rocket launch” event with the location and time qualifiers attached to the satellite’s entry.

### Technical Classification  
- **Instance of:** Strela‑1M (a specific design within the broader Strela communications family).  
- **COSPAR ID:** 1979‑084D, indicating the 84th launch of 1979 and the fourth object catalogued from that launch.  
- **SCN:** 11541, the unique identifier used by the North American Aerospace Defense Command (NORAD) for tracking.

### Operational Role  
Strela‑1M satellites functioned as store‑and‑forward communication relays, receiving data from ground stations, buffering it onboard, and retransmitting it when the satellite passed over another station. This architecture allowed for intermittent line‑of‑sight connections, extending the reach of Soviet command and control networks without requiring continuous real‑time links.

### References & External Identifiers  
- **Wolfram Language Entity:** `Entity["Satellite", "11541"]` provides programmatic access to orbital parameters and historical data.  
- **Wikipedia Language Editions:** Articles exist in Macedonian (mk), Serbo‑Croatian (sh), and Serbian (sr), offering region‑specific historical context.  

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*All information presented above is derived from the structured properties and related data supplied for Cosmos 1133.*

## References

1. Jonathan's Space Report