# Cosmos 711
**Wikidata**: [Q12907782](https://www.wikidata.org/wiki/Q12907782)  
**Source**: https://4ort.xyz/entity/cosmos-711

## Summary
Cosmos 711 was a Soviet military communications satellite launched on February 28, 1975. It belonged to the Strela-1M class and was deployed using a Kosmos-3M rocket from the Plesetsk Cosmodrome. The satellite had the COSPAR ID 1975-016A and SCN number 07678.

## Key Facts
- Launched on **February 28, 1975** at **14:01:59 UTC**
- Launch site: **Plesetsk Cosmodrome Site 132**
- Launch vehicle: **Kosmos-3M** rocket
- Satellite class: **Strela-1M**
- COSPAR ID: **1975-016A**
- SCN (Spacecraft Number): **07678**
- Country of origin: **Soviet Union**

## FAQs
### Q: What type of satellite is Cosmos 711?
A: Cosmos 711 is a Strela-1M-class military communications satellite developed by the Soviet Union. It was designed for secure radio communication with ground forces and naval units.

### Q: When and where was Cosmos 711 launched?
A: Cosmos 711 was launched on February 28, 1975, at 14:01:59 UTC from Plesetsk Cosmodrome Site 132 in the Soviet Union.

### Q: What rocket was used to launch Cosmos 711?
A: The satellite was launched using a Kosmos-3M carrier rocket, a standard launch vehicle for low Earth orbit missions during the Soviet era.

## Why It Matters
Cosmos 711 represents part of the Soviet Union's strategic military space program during the Cold War. As a member of the Strela-1M series, it contributed to enhancing battlefield communication capabilities across dispersed military units. These satellites played a critical role in maintaining command and control infrastructure, particularly in remote regions where terrestrial systems were insufficient or vulnerable. Its deployment reflects broader trends in dual-use space technology—supporting both civilian and defense objectives through reliable orbital platforms.

## Notable For
- Part of the **Strela-1M** constellation, which formed the backbone of Soviet tactical communications
- Launched via the widely-used **Kosmos-3M** rocket, known for reliability in military launches
- Operated under the **cosmos** designation system, commonly applied to classified or military payloads by the USSR
- Supports **secure, long-range communications**, especially useful for mobile and isolated units
- Represents an example of mid-1970s advancements in **military satellite technology**

## Body

### Mission Overview
Cosmos 711 was one of several satellites in the Strela-1M program, a group of low-Earth-orbit communication satellites operated by the Soviet military. Designed primarily for secure voice and data relay between ground troops and command centers, these satellites supported operations in areas lacking robust infrastructure.

### Technical Classification
As a **Strela-1M** satellite, Cosmos 711 functioned within a store-and-forward communication architecture. This allowed messages to be received, stored onboard, and then retransmitted when the satellite passed over another terminal. The system was optimized for use with portable terminals carried by soldiers or installed aboard ships.

### Launch Details
The launch occurred on **February 28, 1975**, at **14:01:59 UTC**, from **Site 132** at the **Plesetsk Cosmodrome**, located in Arkhangelsk Oblast, Russia. The mission utilized a **Kosmos-3M** two-stage liquid-fueled rocket, manufactured by the Soviet Union specifically for launching small to medium-sized payloads into low Earth orbit.

### Identifiers and References
- **COSPAR ID**: 1975-016A  
- **SCN (Spacecraft Number)**: 07678  
- **Aliases**: Kosmos 711  
- **Instance Of**: Strela-1M satellite  
- **Wolfram Language Entity Code**: Entity["Satellite", "07678"]  

These identifiers are used in databases such as Wikidata and Wolfram Alpha to uniquely catalog and reference the spacecraft.

### Operational Context
Cosmos 711 was part of a larger network of military satellites aimed at improving coordination among Soviet armed forces. Satellites like it enabled encrypted communications beyond line-of-sight limitations, crucial for large-scale maneuvers and national security applications. While exact operational lifespan and deactivation date remain unclassified or unavailable, many Strela-1M satellites remained active well into the late 1980s and early 1990s.

## References

1. Jonathan's Space Report