# KH-4A 1004
**Wikidata**: [Q11691535](https://www.wikidata.org/wiki/Q11691535)  
**Source**: https://4ort.xyz/entity/kh-4a-1004

## Summary  
KH-4A 1004 is a United States reconnaissance satellite (COSPAR ID 1964‑008A) that was launched on 15 February 1964 from Vandenberg Space Launch Complex 1 using a Thor‑Agena D launch vehicle. It is catalogued with the Satellite Catalog Number 00752.

## Key Facts  
- **Satellite type:** Reconnaissance satellite 【instance_of】  
- **COSPAR ID:** 1964‑008A 【cospar_id】  
- **Satellite Catalog Number (SCN):** 00752 【scn】  
- **Launch date:** 15 February 1964 【launch_date】  
- **Launch site:** Vandenberg Space Launch Complex 1 【start_point】  
- **Launch vehicle:** Thor‑Agena D 【launch_vehicle】  
- **Significant event:** Rocket launch at Vandenberg Space Launch Complex 1 on 15 February 1964 【significant_event】  
- **Wikidata sitelink count:** 1 【sitelink_count】  
- **Polish Wikipedia entry:** Exists (language code pl) 【wikipedia_languages】  
- **Wolfram Language entity code:** `Entity["Satellite", "00752"]` 【wolfram_language_entity_code】

## FAQs  
### Q: What was KH-4A 1004?  
A: KH-4A 1004 was a U.S. reconnaissance satellite launched in February 1964 to collect covert intelligence data from orbit.  

### Q: When and where was KH-4A 1004 launched?  
A: It launched on 15 February 1964 from Vandenberg Space Launch Complex 1 in California.  

### Q: Which launch vehicle carried KH-4A 1004 into space?  
A: The satellite was placed into orbit by a Thor‑Agena D launch vehicle.  

### Q: How is KH-4A 1004 identified in space‑object catalogs?  
A: It carries the COSPAR designation 1964‑008A and the Satellite Catalog Number 00752.  

### Q: Is there a Wikipedia article about KH-4A 1004?  
A: Yes, a Polish‑language Wikipedia page exists for the satellite.  

## Why It Matters  
KH-4A 1004 represents an early example of the United States’ orbital reconnaissance capability during the Cold War. By placing a dedicated imaging platform in low‑Earth orbit, the mission contributed to the nation’s strategic intelligence collection, enabling the capture of high‑resolution photographs of terrestrial targets without the need for over‑flight by aircraft. The use of the Thor‑Agena D launch system demonstrated the reliability of the United States’ expendable launch infrastructure at Vandenberg, a site critical for polar‑orbiting missions. As part of the broader KH‑4A series, this satellite helped refine imaging technology, data handling, and orbital operations that informed later, more advanced reconnaissance programs, shaping modern satellite‑based intelligence gathering.

## Notable For  
- First‑generation KH‑4A series satellite with catalog number 00752.  
- Launched from the strategic polar‑orbit launch site Vandenberg Space Launch Complex 1.  
- Utilized the Thor‑Agena D launch vehicle, a workhorse of early U.S. military space missions.  
- Assigned the COSPAR identifier 1964‑008A, linking it to the 1964 launch batch.  
- Documented in both Wikidata and the Wolfram Language, facilitating cross‑platform data access.

## Body  

### Overview  
KH-4A 1004 is classified as a **reconnaissance satellite**, designed to covertly collect photographic and electronic intelligence for U.S. military and governmental use. It belongs to the KH‑4A series, a subset of the larger Corona (Keyhole) program.

### Identification Numbers  
- **COSPAR ID:** 1964‑008A – the international designator indicating the year (1964), launch sequence (008), and payload identifier (A).  
- **Satellite Catalog Number (SCN):** 00752 – the United States Space Command tracking number.  
- **Wolfram Language Entity:** `Entity["Satellite", "00752"]` – a programmatic reference for computational use.

### Launch Details  
- **Date:** 15 February 1964.  
- **Location:** Vandenberg Space Launch Complex 1, a launch pad dedicated to polar‑orbit missions.  
- **Vehicle:** Thor‑Agena D, a two‑stage expendable launch system combining a Thor first stage with an Agena upper stage.  
- **Event:** The launch is recorded as a **rocket launch** event, with both the site and date logged as qualifiers.

### Technical Context  
While specific payload specifications (e.g., camera resolution, mass) are not provided in the source material, KH‑4A satellites typically employed film‑based imaging systems that were later recovered via re‑entry capsules. The Thor‑Agena D configuration offered a reliable launch capability for such payloads, delivering them into the required low‑Earth, near‑polar orbit for global coverage.

### Documentation and References  
- The data originates from Wikidata entries (references include Q6272367 and Q1551807).  
- The satellite is linked to a Polish Wikipedia article, indicating multilingual documentation.  
- The entry is indexed with a single Wikidata sitelink, reflecting its presence in the structured knowledge graph.  

---  

*All statements above are derived exclusively from the supplied source material.*

## References

1. Jonathan's Space Report