# Kosmos 13

> soviet optical reconnaissance satellite (1963)

**Wikidata**: [Q951320](https://www.wikidata.org/wiki/Q951320)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kosmos_13)  
**Source**: https://4ort.xyz/entity/kosmos-13

## Summary
Kosmos 13 was a Soviet optical reconnaissance satellite launched on March 21, 1963, as part of the Zenit-2 class. It was designed to gather high-resolution imagery for military and intelligence purposes, operating in a low Earth orbit before re-entering the atmosphere on April 29, 1963.

## Key Facts
- **Launch Date**: March 21, 1963, from Gagarin’s Start launch site.
- **Class**: Zenit-2, a Soviet optical reconnaissance satellite series.
- **Launch Vehicle**: Vostok-2, a Soviet rocket used for early space missions.
- **Mass**: 4,730 kilograms.
- **Orbital Period**: 89.77 minutes.
- **Apoapsis**: 337 kilometers.
- **Periapsis**: 205 kilometers.
- **Orbital Inclination**: 64.97 degrees.
- **Orbital Eccentricity**: 0.009938.
- **Decay Date**: April 29, 1963, marking the end of its operational life.
- **Manufacturer**: S.P. Korolev Rocket and Space Corporation Energia.

## FAQs
### Q: What was the purpose of Kosmos 13?
A: Kosmos 13 was an optical reconnaissance satellite designed to capture high-resolution imagery for military and intelligence purposes, operating in a low Earth orbit.

### Q: Which rocket launched Kosmos 13?
A: Kosmos 13 was launched using the Vostok-2 rocket, a Soviet carrier rocket used for early space missions.

### Q: How long did Kosmos 13 remain in orbit?
A: Kosmos 13 remained in orbit for approximately 38 days before re-entering the atmosphere on April 29, 1963.

### Q: What was the orbital inclination of Kosmos 13?
A: The orbital inclination of Kosmos 13 was 64.97 degrees, typical for reconnaissance satellites to cover high-latitude regions.

### Q: Who manufactured Kosmos 13?
A: Kosmos 13 was manufactured by the S.P. Korolev Rocket and Space Corporation Energia, a leading Soviet space agency.

## Why It Matters
Kosmos 13 was a critical component of the Soviet Union’s early reconnaissance satellite program, demonstrating the country’s capability to deploy optical surveillance systems in space. As part of the Zenit-2 series, it contributed to the Cold War-era space race by providing high-resolution imagery for military intelligence. Its relatively short operational lifespan of 38 days highlights the challenges of maintaining satellite stability and functionality in the harsh environment of space. The mission laid the groundwork for future Soviet reconnaissance satellites, which played a significant role in military and intelligence operations during the Cold War.

## Notable For
- **First Zenit-2 Satellite**: Kosmos 13 was the first satellite in the Zenit-2 class, marking the debut of this reconnaissance satellite series.
- **Short Operational Life**: Its brief 38-day mission provided valuable data on satellite durability and performance in low Earth orbit.
- **Military Intelligence**: The satellite’s imagery supported Soviet military and intelligence operations, contributing to Cold War-era surveillance capabilities.
- **Vostok-2 Launch**: The use of the Vostok-2 rocket for its launch demonstrated the reliability of this early Soviet carrier vehicle.
- **Orbital Decay**: Its controlled re-entry on April 29, 1963, marked the end of its mission and provided insights into satellite deorbiting procedures.

## Body
### Mission Overview
Kosmos 13 was launched on March 21, 1963, from the Gagarin’s Start launch site in Kazakhstan. It was part of the Zenit-2 series, a Soviet optical reconnaissance satellite designed to capture high-resolution imagery for military and intelligence purposes. The satellite was launched aboard a Vostok-2 rocket, a Soviet carrier vehicle used for early space missions.

### Orbital Characteristics
Kosmos 13 operated in a low Earth orbit with an apoapsis of 337 kilometers and a periapsis of 205 kilometers. Its orbital period was 89.77 minutes, and its orbital inclination was 64.97 degrees, allowing it to cover high-latitude regions. The orbital eccentricity was 0.009938, indicating a near-circular orbit.

### Operational Life
Kosmos 13 remained in orbit for approximately 38 days before re-entering the atmosphere on April 29, 1963. This short operational lifespan provided valuable data on satellite stability and performance in the space environment. The mission contributed to the Soviet Union’s reconnaissance capabilities during the Cold War.

### Manufacturing and Launch
The satellite was manufactured by the S.P. Korolev Rocket and Space Corporation Energia, a leading Soviet space agency. The launch of Kosmos 13 marked the debut of the Zenit-2 series, establishing a new class of reconnaissance satellites. The use of the Vostok-2 rocket demonstrated the reliability of this early Soviet carrier vehicle.

### Significance
Kosmos 13 played a crucial role in the Soviet Union’s early reconnaissance satellite program, providing high-resolution imagery for military intelligence. Its mission laid the groundwork for future Soviet reconnaissance satellites, which continued to support Cold War-era surveillance efforts. The satellite’s relatively short operational life highlighted the challenges of maintaining satellite functionality in space.

## References

1. Jonathan's Space Report