# KH-4 9054
**Wikidata**: [Q11691530](https://www.wikidata.org/wiki/Q11691530)  
**Source**: https://4ort.xyz/entity/kh-4-9054

## Summary
KH-4 9054 is a reconnaissance satellite with the spacecraft catalog number (SCN) 00590 and COSPAR ID 1963-019A. It was launched on 1963-06-12 from Vandenberg Space Launch Complex 1 aboard a Thor-Agena D rocket.

## Key Facts
- Designation: KH-4 9054; spacecraft catalog number (scn) 00590.  
- COSPAR ID: 1963-019A.  
- Instance type: reconnaissance satellite (a satellite class that covertly collects data for intelligence or military applications).  
- Launch date: 1963-06-12.  
- Launch site (start_point): Vandenberg Space Launch Complex 1.  
- Launch vehicle: Thor-Agena D (an American orbital launch vehicle).  
- Significant event: rocket launch from Vandenberg Space Launch Complex 1 on 1963-06-12.  
- External identifiers: Google Knowledge Graph ID /g/1237q3gp and Wolfram Language entity Entity["Satellite", "00590"].  
- Language coverage: an article exists in Polish Wikipedia (wikipedia_languages: pl).

## FAQs
### Q: What is KH-4 9054?
A: KH-4 9054 is a reconnaissance satellite (SCN 00590) that was placed into orbit. Its COSPAR identifier is 1963-019A.

### Q: When and where was KH-4 9054 launched?
A: KH-4 9054 was launched on 12 June 1963 from Vandenberg Space Launch Complex 1.

### Q: What rocket launched KH-4 9054?
A: The satellite was launched on a Thor-Agena D launch vehicle, an American orbital launch vehicle.

### Q: Where can I find more information about KH-4 9054?
A: A Polish-language Wikipedia entry exists for this satellite. Additional structured identifiers include a Google Knowledge Graph ID (/g/1237q3gp) and a Wolfram Language entity code.

## Why It Matters
KH-4 9054 represents a specific, documented example of a mid-20th-century reconnaissance satellite. Reconnaissance satellites are critical tools for collecting covert data for intelligence and military applications; every individual launch demonstrates operational capability in satellite deployment, payload integration, and orbital reconnaissance infrastructure. The launch of KH-4 9054 on 12 June 1963 from Vandenberg Space Launch Complex 1 using a Thor-Agena D vehicle ties the satellite to established launch systems and facilities. Its formal identifiers (SCN 00590 and COSPAR 1963-019A) allow it to be tracked, cataloged, and cross-referenced in spaceflight databases and knowledge systems (for example, Google Knowledge Graph and Wolfram Language). For historians, analysts, and data curators, entries like KH-4 9054 provide discrete data points for mapping the deployment cadence, vehicle usage, and inventory of reconnaissance assets during the period in question. The availability of a Polish Wikipedia article also indicates at least some public documentation and external reference for the satellite.

## Notable For
- Being cataloged with spacecraft number SCN 00590 and COSPAR ID 1963-019A.  
- Launch date of 1963-06-12 from Vandenberg Space Launch Complex 1.  
- Use of the Thor-Agena D, an American orbital launch vehicle.  
- Presence in structured knowledge systems (Google Knowledge Graph ID and Wolfram Language entity).  
- Documented in at least one language Wikipedia (Polish).

## Body
### Identification
- Official designation: KH-4 9054.  
- Spacecraft catalog number (scn): 00590 (reference recorded).  
- COSPAR identifier: 1963-019A (reference recorded).  
- External identifiers: Google Knowledge Graph ID /g/1237q3gp; Wolfram Language entity code Entity["Satellite", "00590"].  
- Wikipedia coverage: Polish-language article exists (wikipedia_languages: pl).

### Classification
- Instance of: reconnaissance satellite.  
- Reconnaissance satellites are defined here as satellites that covertly collect data for intelligence or military applications.

### Launch details
- Launch date (point in time): 1963-06-12.  
- Launch site (start_point): Vandenberg Space Launch Complex 1.  
- Launch vehicle: Thor-Agena D, noted as an American orbital launch vehicle.  
- Significant event recorded: rocket launch from Vandenberg Space Launch Complex 1 on 1963-06-12.

### Sources and references
- Structured property entries include references pointing to the dataset identifiers used in the source material (e.g., reference qualifiers such as P248: Q6272367 and P143: Q1551807 as recorded in the source).  
- The entity is represented in machine-readable knowledge systems (Google Knowledge Graph and Wolfram Language) and has at least one Wikipedia-language entry (Polish).

## References

1. Jonathan's Space Report