# Cosmos 554
**Wikidata**: [Q12753896](https://www.wikidata.org/wiki/Q12753896)  
**Source**: https://4ort.xyz/entity/cosmos-554

## Summary
Cosmos 554 is a Soviet satellite launched on April 19, 1973, from the Plesetsk Cosmodrome using a Voskhod rocket. It was part of the Zenit-4MK class of satellites and was assigned the COSPAR ID 1973-021A. The launch occurred at 08:59:59 UTC from Site 43/4 at Plesetsk.

## Key Facts
- **Launch Date**: April 19, 1973
- **Launch Vehicle**: Voskhod
- **Launch Site**: Plesetsk Cosmodrome Site 43/4
- **COSPAR ID**: 1973-021A
- **Class**: Zenit-4MK
- **Launch Time**: 08:59:59 UTC
- **Country of Origin**: Soviet Union
- **Related Spacecraft Series**: Voskhod (series of Soviet crewed spacecraft)
- **Wikipedia Availability**: Available in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr)

## FAQs
### Q: What was the purpose of Cosmos 554?
A: The purpose of Cosmos 554 is not specified in the provided source material. It is a classified satellite, and its exact mission details are not publicly available.

### Q: Which rocket was used to launch Cosmos 554?
A: Cosmos 554 was launched using a Voskhod rocket, a Soviet launch vehicle.

### Q: Where was Cosmos 554 launched from?
A: Cosmos 554 was launched from Plesetsk Cosmodrome Site 43/4, a facility in the Soviet Union.

### Q: What is the COSPAR ID of Cosmos 554?
A: The COSPAR ID of Cosmos 554 is 1973-021A, assigned by the Committee on Space Research.

### Q: What class of satellite is Cosmos 554?
A: Cosmos 554 belongs to the Zenit-4MK class of satellites.

## Why It Matters
Cosmos 554 represents a significant entry in the Soviet space program's satellite launches during the 1970s. As part of the Zenit-4MK class, it contributes to the broader efforts of the Soviet Union in space exploration and satellite deployment. The launch from Plesetsk Cosmodrome highlights the Soviet Union's capabilities in space infrastructure and rocket technology. While the exact mission of Cosmos 554 remains classified, its inclusion in the Voskhod series underscores the Soviet Union's advancements in spacecraft design and launch systems. The satellite's launch and operation contribute to the historical record of Soviet space activities, providing insights into the era's technological achievements and strategic objectives.

## Notable For
- **Classified Mission**: Cosmos 554 is part of a series of Soviet satellites with classified purposes, reflecting the secrecy surrounding certain space missions.
- **Zenit-4MK Class**: It is one of several satellites in the Zenit-4MK class, indicating a specific design or mission profile.
- **Voskhod Launch Vehicle**: The use of the Voskhod rocket demonstrates the Soviet Union's reliance on this launch system for satellite deployments.
- **Plesetsk Launch Site**: The launch from Site 43/4 at Plesetsk Cosmodrome highlights the strategic importance of this facility in Soviet space operations.
- **COSPAR ID**: The assignment of the COSPAR ID 1973-021A signifies its recognition within the international space community.

## Body
### Launch Details
Cosmos 554 was launched on April 19, 1973, at 08:59:59 UTC from Plesetsk Cosmodrome Site 43/4. The launch vehicle used was a Voskhod, a Soviet rocket known for its role in early space missions. The satellite was assigned the COSPAR ID 1973-021A, which is used to uniquely identify space objects.

### Classification and Series
Cosmos 554 is classified as a Zenit-4MK satellite, part of a series of Soviet spacecraft. It is also associated with the Voskhod series, which includes both launch vehicles and crewed spacecraft. The Voskhod series played a crucial role in the Soviet space program, contributing to early human spaceflight and satellite deployment.

### Historical Context
The launch of Cosmos 554 occurred during the Cold War era, reflecting the Soviet Union's ongoing efforts in space exploration. The satellite's classification suggests it may have been part of military or intelligence-related missions, a common characteristic of many Soviet satellites from this period. The Plesetsk Cosmodrome, from which Cosmos 554 was launched, was a key site for Soviet space activities.

### International Recognition
Cosmos 554 is recognized internationally through its COSPAR ID, which is assigned by the Committee on Space Research. The satellite's presence in Wikipedia in multiple languages, including Macedonian, Serbo-Croatian, and Serbian, indicates its relevance to a broader audience beyond the Soviet Union.

## References

1. Jonathan's Space Report