# Zenit

> rocket for launching satellites

**Wikidata**: [Q1748964](https://www.wikidata.org/wiki/Q1748964)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Zenit_(rocket_family))  
**Source**: https://4ort.xyz/entity/zenit

## Summary
Zenit is a family of expendable launch vehicles designed for launching satellites into space. Developed by the Ukrainian Pivdenne Design Office, the rockets were used by the Soviet Union, Ukraine, and Russia for military, scientific, and commercial missions. The Zenit series includes multiple variants, such as the Zenit-2 and Zenit-3SL, and played a significant role in international space projects.

## Key Facts
- **Manufacturer**: Pivdenne Design Office (Ukraine).
- **Engines**: Powered by RD-120 and RD-171 rocket engines.
- **Variants**: Includes Zenit-2, Zenit-2M, Zenit-3F, Zenit-3SL, and Zenit-3SLB.
- **Countries**: Developed and operated by the Soviet Union, Ukraine, and Russia.
- **Notable Satellites**: Launched missions like Fobos-Grunt (Mars probe), Intelsat 19, and SiriusXM’s XM-2.
- **Expendable**: Designed for single-use, typical of launch vehicles in its era.

## FAQs
### Q: Who developed the Zenit rocket?
A: The Zenit rocket was designed by the Pivdenne Design Office in Ukraine, with contributions from Russian and Soviet engineers during its operational lifespan.

### Q: What are the primary variants of the Zenit rocket?
A: Key variants include the Zenit-2 (Ukrainian-Russian), Zenit-3SL (used in Sea Launch projects), and Zenit-3SLB, each tailored for different payload and mission requirements.

### Q: What notable missions used the Zenit rocket?
A: Zenit launched satellites such as Fobos-Grunt (a failed Mars mission), Intelsat 19, and Koreasat 5, demonstrating its versatility for scientific, commercial, and military applications.

## Why It Matters
Zenit represents a critical chapter in post-Soviet space technology, showcasing Ukraine’s expertise in rocket design during a period of geopolitical transition. Its modular design allowed adaptation for diverse missions, from deploying military spy satellites (e.g., Zenit 8) to supporting international communications networks. The rocket’s role in projects like Sea Launch (via the Zenit-3SL variant) highlighted its commercial viability, bridging Eastern and Western space industries. While retired from active service, Zenit influenced later launch vehicle designs and remains a symbol of collaborative and competitive dynamics in space exploration.

## Notable For
- **Firsts**: One of the first rockets developed independently by Ukraine post-Soviet dissolution.
- **Powerful Engines**: Utilized the RD-171, one of the most powerful liquid-fueled rocket engines ever built.
- **International Collaboration**: Central to the Sea Launch program, a multinational effort to launch satellites from equatorial platforms.
- **Versatility**: Supported payloads ranging from military reconnaissance satellites to interplanetary probes.

## Body
### Development and Design
Zenit rockets were manufactured by the Pivdenne Design Office, inheriting technology from the Soviet space program. The core design emphasized reliability and payload capacity, with the RD-171 engine providing 14 million newtons of thrust at liftoff.

### Variants
- **Zenit-2**: Baseline model used for Soviet and Ukrainian military satellites.
- **Zenit-3SL**: Modified for Sea Launch, enabling equatorial launches to maximize payload efficiency.
- **Zenit-3F/SLB**: Upgraded variants with extended fairings for larger satellites.

### Notable Missions
- **Fobos-Grunt (2011)**: A Russian Mars probe launched by Zenit-2M, though the mission failed due to spacecraft errors.
- **Intelsat 19 (2012)**: Commercial communications satellite deployed by Zenit-3SLB.
- **Koreasat 5 (2007)**: South Korean military satellite launched for broadband and secure communications.

### Legacy
Zenit rockets were phased out in the 2010s due to cost and geopolitical shifts, with Russia pivoting to domestic alternatives like the Angara rocket. Its legacy endures as a bridge between Soviet-era engineering and modern commercial spaceflight.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Rocket",
  "name": "Zenit",
  "description": "Family of expendable launch vehicles for satellite deployment",
  "manufacturer": "Pivdenne Design Office",
  "engine": ["RD-120", "RD-171"],
  "sameAs": [
    "https://www.wikidata.org/wiki/Q220664",
    "https://en.wikipedia.org/wiki/Zenit_(rocket_family)"
  ],
  "additionalType": "ExpendableLaunchVehicle"
}

## References

1. Freebase Data Dumps. 2013
2. BabelNet