# Cosmos 875
**Wikidata**: [Q12754042](https://www.wikidata.org/wiki/Q12754042)  
**Source**: https://4ort.xyz/entity/cosmos-875

## Summary
Cosmos 875 was a Soviet satellite launched on December 7, 1976, designated as part of the Strela-1M class of spacecraft. It was deployed from the Plesetsk Cosmodrome Site 132 using a Kosmos-3M launch vehicle. The satellite is tracked internationally under the COSPAR ID 1976-118E and the SATCAT number 09592.

## Key Facts
*   **Classification:** Cosmos 875 is an instance of the **Strela-1M** satellite class.
*   **Launch Date:** The satellite was launched on **December 7, 1976**.
*   **Launch Vehicle:** It was delivered to orbit by a **Kosmos-3M** rocket.
*   **Launch Site:** The launch originated from **Plesetsk Cosmodrome Site 132**.
*   **COSPAR ID:** Its international designation is **1976-118E**.
*   **SATCAT Number:** It is cataloged in the Satellite Catalog Number system as **09592**.
*   **Launch Time:** The significant launch event occurred at **10:23:00**.
*   **Aliases:** The entity is also known as **Kosmos 875**.

## FAQs
### Q: What type of satellite was Cosmos 875?
A: Cosmos 875 was a Strela-1M class satellite. These were Soviet spacecraft typically launched in batches to maintain communication networks.

### Q: When and where was Cosmos 875 launched?
A: Cosmos 875 was launched on December 7, 1976, at 10:23:00, from the Plesetsk Cosmodrome Site 132 in the Soviet Union.

### Q: What rocket was used to deploy Cosmos 875?
A: The satellite was launched aboard a Kosmos-3M rocket, a two-stage launch vehicle frequently used for Soviet military and scientific payloads.

## Why It Matters
Cosmos 875 serves as a specific historical data point within the extensive Soviet "Kosmos" program, which encompassed a wide variety of military and scientific satellites. Launched in the mid-1970s, this entity highlights the operational tempo and technical specifications of the era's space activities. As a Strela-1M satellite, it represents a generation of spacecraft designed for specific orbital communications or tactical support roles, though the "Kosmos" designation was famously used to obscure the true nature of many Soviet military satellites at the time.

The precise tracking data associated with Cosmos 875—specifically its COSPAR ID (1976-118E) and SATCAT number (09592)—allows researchers and historians to accurately identify the object within the broader catalogue of human-made objects in space. Furthermore, its launch via the Kosmos-3M rocket from Plesetsk Site 132 underscores the importance of the Plesetsk Cosmodrome as the primary launch site for military satellites during the Cold War. The inclusion of a Wolfram Language entity code also indicates its recognition in modern computational knowledge systems, linking historical spaceflight data with contemporary digital analysis tools.

## Notable For
*   **Strela-1M Class:** Belonging to a specific series of Soviet satellites (Strela-1M), distinguishing it from other Cosmos designations.
*   **Specific Launch Configuration:** Utilizing the Kosmos-3M launch vehicle, a workhorse of the Soviet space program.
*   **Plesetsk Origin:** Being launched from Site 132 at the Plesetsk Cosmodrome, a high-security Soviet military facility.
*   **Dual Identification:** Being tracked under both the COSPAR international standard (1976-118E) and the US Space Command SATCAT (09592).
*   **Computational Indexing:** Inclusion in the Wolfram Language knowledgebase as `Entity["Satellite", "09592"]`.

## Body

### Mission Identity and Classification
Cosmos 875 is identified in space databases as a distinct artificial satellite entity. Its primary classification is that of a **Strela-1M** class spacecraft. This classification links the satellite to a specific lineage of Soviet technology utilized during the Cold War. The name "Kosmos 875" follows the standard Soviet naming convention where military or experimental satellites were given generic "Kosmos" designations to obscure their specific mission profiles from public scrutiny.

### Launch Event and Trajectory
The satellite's deployment is defined by a precise set of logistical parameters. The launch took place on **December 7, 1976**. The specific launch event is recorded as occurring at **10:23:00**. The departure point for the mission was **Plesetsk Cosmodrome Site 132**, a specific launch complex within the broader Plesetsk facility located in the Soviet Union (now Russia).

The launch was facilitated by a **Kosmos-3M** launch vehicle, a rocket class frequently utilized for this weight and orbit class during that period. The rocket is described as a Russian (formerly Soviet) vehicle, emphasizing the industrial origin of the launch system.

### Technical Identifiers
To distinguish Cosmos 875 from the thousands of other objects in orbit, specific international and computational identifiers are applied:
*   **COSPAR ID:** **1976-118E**. This alphanumeric code indicates the year of launch (1976), the sequential launch number of that year (118), and the specific component of the launch (E).
*   **SATCAT (SCN):** **09592**. This is the sequential number assigned by the Space Command (US) for tracking purposes.
*   **Wolfram Language Code:** The entity is computationally accessible via the code `Entity["Satellite", "09592"]`.

### Related Entities
The knowledge structure for Cosmos 875 explicitly links it to two major hardware classes:
1.  **Strela-1M:** The class of the satellite payload itself.
2.  **Kosmos-3M:** The class of the launch vehicle responsible for putting the payload into orbit.

## References

1. Jonathan's Space Report