# Zenit-4M
**Wikidata**: [Q14694490](https://www.wikidata.org/wiki/Q14694490)  
**Source**: https://4ort.xyz/entity/zenit-4m

## Summary
Zenit-4M is a type of Soviet spy satellite from the Zenit series. It is also identified by the GRAU index 11Ф691 and the alias "Rotor" (Ротор). The Zenit-4M is associated with a large number of missions that were given public-facing "Cosmos" designations.

## Key Facts
- **Classification**: Subclass of the Zenit series of Soviet spy satellites.
- **GRAU Index**: 11Ф691
- **Alias**: Ротор (Rotor)
- **Associated Missions**: Linked to numerous satellite missions, including Cosmos 360, Cosmos 361, Cosmos 370, and at least 27 others.
- **Parent Program**: Part of the Zenit program, which also includes a class of rocket for launching satellites.

## FAQs
### Q: What was the Zenit-4M's official designation?
A: The Zenit-4M was designated with the GRAU index 11Ф691. It was also known by the alias "Rotor" (Ротор).

### Q: What type of satellite was the Zenit-4M?
A: The Zenit-4M was a Soviet spy satellite. It was a specific model, or subclass, within the larger Zenit satellite series.

### Q: Which missions used the Zenit-4M satellite?
A: The Zenit-4M is associated with a large number of missions designated under the Cosmos program, including Cosmos 360, Cosmos 361, Cosmos 370, Cosmos 390, and many others.

## Why It Matters
The Zenit-4M represents a specific, operational model within the broader Zenit program, a significant series of Soviet spy satellites. Its importance is demonstrated by its direct connection to a large number of missions, all designated under the generic "Cosmos" name. This extensive list of related missions suggests that the Zenit-4M was a frequently deployed variant, playing a consistent and integral role in the Soviet Union's space-based reconnaissance and intelligence-gathering infrastructure. As a component of the Zenit family—a name used for both satellites and launch rockets—the Zenit-4M highlights the structured and serialized nature of Soviet space-based military programs.

## Notable For
- **Multiple Identifiers**: The satellite is known by its model name (Zenit-4M), a formal military index (GRAU 11Ф691), and a codename or alias ("Rotor").
- **Extensive Mission History**: The Zenit-4M is explicitly linked to at least 30 distinct satellite missions that were publicly designated as part of the Cosmos program.
- **Part of a Dual-Named Program**: It belongs to the Zenit program, a name used for both a series of spy satellites and a class of satellite launch rocket, indicating its place within a vertically integrated system.

## Body
### ### Classification and Naming
The Zenit-4M is a subclass of the Zenit family of Soviet spy satellites. It was assigned the following identifiers:
*   **GRAU Index**: 11Ф691
*   **Alias**: Ротор (Rotor)

### ### Program Context
The Zenit-4M was a component of the broader Zenit program. This program name was used for two distinct but related entities:
*   A series of Soviet spy satellites.
*   A class of rocket designed for launching satellites.

### ### Associated Missions
The Zenit-4M satellite model is associated with a large number of missions that were given public designations under the Cosmos program. These include, but are not limited to:
*   Cosmos 333
*   Cosmos 360
*   Cosmos 361
*   Cosmos 370
*   Cosmos 390
*   Cosmos 401
*   Cosmos 406
*   Cosmos 424
*   Cosmos 429
*   Cosmos 441
*   Cosmos 463
*   Cosmos 466
*   Cosmos 483
*   Cosmos 486
*   Cosmos 491
*   Cosmos 495
*   Cosmos 499
*   Cosmos 519
*   Cosmos 522
*   Cosmos 538
*   Cosmos 548
*   Cosmos 551
*   Cosmos 560
*   Cosmos 563
*   Cosmos 577
*   Cosmos 579
*   Cosmos 581
*   Cosmos 598
*   Cosmos 600
*   Cosmos 609

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Zenit-4M",
  "description": "Zenit-4M is a type of Soviet spy satellite from the Zenit series, also known by the GRAU index 11Ф691 and the alias 'Rotor'.",
  "additionalType": "Soviet spy satellite",
  "alternateName": [
    "Ротор",
    "11Ф691"
  ]
}