# KH 11-07

> U.S. reconnaissance satellite destroyed in a launch failure

**Wikidata**: [Q118959543](https://www.wikidata.org/wiki/Q118959543)  
**Source**: https://4ort.xyz/entity/kh-11-07

## Summary  
KH 11‑07 was a United States Keyhole‑11 (KH‑11 KENNEN) optical reconnaissance satellite that was destroyed when its Titan 34D launch vehicle failed on 28 August 1985 from Vandenberg Space Launch Complex 4 East. Operated by the National Reconnaissance Office and built by Lockheed Corporation, the satellite never reached orbit.

## Key Facts  
- **Launch date & time:** 28 August 1985 at 21:20 UTC.  
- **Launch site:** Vandenberg Space Launch Complex 4 East (SLC‑4E).  
- **Launch vehicle:** Titan 34D (missions 34D‑7 and 04D‑6).  
- **Operator:** National Reconnaissance Office (NRO).  
- **Manufacturer:** Lockheed Corporation.  
- **Satellite class:** KH‑11 KENNEN (optical “Crystal” reconnaissance series).  
- **Power source:** Spacecraft solar array.  
- **Country of origin:** United States.  
- **Outcome:** Launch failure; the satellite was destroyed before achieving orbit.  
- **Aliases:** Keyhole 11‑7, KH 11‑7, KH‑11 7, KH11‑7, Crystal 7, Improved CRYSTAL 2101.

## FAQs  
### Q: What caused KH 11‑07 to fail?  
A: The Titan 34D launch vehicle suffered a catastrophic failure during ascent on 28 August 1985, destroying the KH 11‑07 satellite before it could reach orbit.  

### Q: Which organization was responsible for operating KH 11‑07?  
A: The satellite was operated by the United States National Reconnaissance Office (NRO).  

### Q: What type of satellite was KH 11‑07?  
A: KH 11‑07 was a KH‑11 KENNEN optical reconnaissance satellite, part of the “Crystal” series used for high‑resolution imaging.  

### Q: Who built KH 11‑07?  
A: Lockheed Corporation manufactured the satellite.  

### Q: From where was KH 11‑07 launched?  
A: It launched from Vandenberg Space Launch Complex 4 East in California.

## Why It Matters  
KH 11‑07 represents a rare and high‑profile loss within the United States’ strategic reconnaissance program. As a member of the KH‑11 KENNEN family, the satellite was intended to provide real‑time, high‑resolution optical imagery for national security and intelligence analysis. Its destruction highlighted the inherent risks of heavy‑lift launch operations, especially with the Titan 34D—a workhorse of the 1980s that had already experienced several anomalies. The failure prompted reviews of launch‑vehicle reliability, risk mitigation strategies, and contingency planning within the National Reconnaissance Office and its contractors. Understanding this incident offers insight into the evolution of U.S. space‑based surveillance capabilities, the importance of launch‑vehicle selection, and the broader challenges of maintaining a resilient intelligence‑gathering architecture in a contested space environment.

## Notable For  
- **First KH‑11 loss:** The only known KH‑11 satellite destroyed before reaching orbit.  
- **Titan 34D failure:** One of the most high‑profile failures of the Titan 34D launch system.  
- **Strategic impact:** Prompted reassessment of launch‑vehicle reliability for critical reconnaissance payloads.  
- **Multiple aliases:** Known by several designations (Keyhole 11‑7, Crystal 7, Improved CRYSTAL 2101).  
- **Part of the “Crystal” series:** An advanced optical imaging platform within the broader KH‑11 family.

## Body  

### Overview  
- KH 11‑07 was a classified U.S. optical reconnaissance satellite.  
- It belonged to the KH‑11 KENNEN class, colloquially called the “Crystal” series for their advanced imaging sensors.  

### Launch Details  
- **Date & Time:** 28 August 1985, 21:20 UTC.  
- **Site:** Vandenberg Space Launch Complex 4 East (SLC‑4E), a primary West‑coast launch pad for polar‑orbiting missions.  
- **Vehicle:** Titan 34D, a two‑stage expendable launch rocket. The mission identifiers were 34D‑7 and 04D‑6, indicating the specific booster and upper‑stage configuration.  

### Technical Specs  
- **Power:** Solar arrays supplied electricity to onboard systems.  
- **Class:** KH‑11 KENNEN, a line of high‑resolution imaging satellites.  
- **Manufacturer:** Lockheed Corporation, responsible for the spacecraft bus and payload integration.  

### Operator & Manufacturer  
- **Operator:** National Reconnaissance Office (NRO), the U.S. agency overseeing satellite intelligence collection.  
- **Manufacturer:** Lockheed Corporation, a major defense contractor with a long history of building reconnaissance platforms.  

### Failure Analysis  
- The Titan 34D experienced a launch‑vehicle malfunction shortly after liftoff, leading to vehicle breakup.  
- The satellite was destroyed in the ensuing debris field, never achieving orbital insertion.  
- Post‑failure investigations focused on propulsion and structural integrity of the Titan 34D’s stages.  

### Legacy  
- The loss of KH 11‑07 underscored the vulnerability of high‑value payloads to launch‑vehicle anomalies.  
- It contributed to subsequent improvements in launch‑vehicle quality control and the eventual transition to more reliable launch systems for NRO missions.  
- The incident remains a reference point in discussions of risk management for classified space assets.

## References

1. [Source](https://space.skyrocket.de/doc_sdat/kh-11.htm)
2. Jonathan's Space Report
3. [Source](http://www.astronautix.com/k/kh-11.html)