# KH 7-26

> American reconnaissance satellite

**Wikidata**: [Q28933776](https://www.wikidata.org/wiki/Q28933776)  
**Source**: https://4ort.xyz/entity/kh-7-26

## Summary  
KH 7-26, also known as GAMBIT-1 26 or Mission 4026, was an American reconnaissance satellite launched on March 18, 1966. It was part of the KH-7 Gambit program, designed for high-resolution optical surveillance during the Cold War.

## Key Facts  
- Launched on March 18, 1966 at 20:00 UTC from Vandenberg Space Launch Complex 4 East  
- Weighed approximately 2,000 kilograms  
- Operated under multiple designations including OPS 0879, AFP-206 SV 976, and GAMBIT SV 976  
- Built by General Electric (Orbital Control Vehicle) and Kodak (Photographic Payload Section)  
- Launched using an Atlas SLV-3 Agena-D rocket (serial number 7116)  
- Reentered Earth's atmosphere on March 24, 1966  
- COSPAR ID: 1966-022A  
- Operated by the United States Air Force  
- Country of origin: United States  

## FAQs  
### Q: What was KH 7-26 used for?  
A: KH 7-26 was a reconnaissance satellite used for high-resolution photographic surveillance during the Cold War. It collected intelligence imagery over denied areas.

### Q: When was KH 7-26 launched?  
A: KH 7-26 was launched on March 18, 1966, at 20:00 UTC from Vandenberg Space Launch Complex 4 East.

### Q: Who built KH 7-26?  
A: The spacecraft was manufactured by General Electric, which produced the Orbital Control Vehicle, while Kodak developed the Photographic Payload Section.

## Why It Matters  
KH 7-26 represents a critical component of the United States' Cold War-era intelligence-gathering capabilities. As part of the KH-7 Gambit program, it enabled the U.S. to obtain detailed imagery of strategic locations, particularly within the Soviet Union and other adversaries. These missions were essential for monitoring military developments, assessing threats, and informing national security decisions. Its successful deployment marked advancements in orbital reconnaissance technology and demonstrated the feasibility of returning film capsules for analysis, contributing to the evolution of modern spy satellite systems.

## Notable For  
- Being one of the early operational reconnaissance satellites with recoverable film payloads  
- Part of the highly classified GAMBIT-1 program that significantly advanced U.S. photoreconnaissance capability  
- Successful atmospheric reentry and recovery of its film return capsule after six days in orbit  
- Among the first U.S. satellites to achieve sub-meter ground resolution imagery  
- Operated under multiple classified aliases reflecting its sensitive mission profile  

## Body  

### Overview  
KH 7-26 was the 26th satellite in the KH-7 Gambit series, a class of American reconnaissance satellites operated by the United States Air Force. Designed primarily for optical surveillance, it carried a sophisticated camera system capable of capturing high-resolution images of Earth’s surface.  

### Mission Details  
- **Launch Date**: March 18, 1966  
- **Launch Time**: 20:00 UTC  
- **Launch Site**: Vandenberg Space Launch Complex 4 East  
- **Reentry Date**: March 24, 1966  
- **Mission Duration**: Approximately 6 days  
- **COSPAR ID**: 1966-022A  

### Technical Specifications  
- **Mass**: ~2,000 kg  
- **Manufacturer**:  
  - General Electric: Orbital Control Vehicle  
  - Kodak: Photographic Payload Section  
- **Launch Vehicle**: Atlas SLV-3 Agena-D (Serial Number: 7116)  

### Designation Aliases  
KH 7-26 was identified by several names throughout its lifecycle due to the compartmentalized nature of its operations:  
- KH7-26  
- GAMBIT-1 26  
- Mission 4026  
- OPS 0879  
- AFP-206 SV 976  
- GAMBIT SV 976  

### Operational Significance  
As part of the GAMBIT program, KH 7-26 played a vital role in Cold War intelligence efforts. Its ability to capture and return high-quality film via a recoverable capsule allowed analysts to study adversary activities without risking human pilots or relying solely on radio-transmitted data.  

### Historical Context  
KH 7-26 launched during a period of intense geopolitical tension, when accurate intelligence on foreign military installations was crucial. The success of the GAMBIT program helped establish the foundation for future generations of imaging reconnaissance satellites.

## References

1. Jonathan's Space Report
2. [Source](https://space.skyrocket.de/doc_sdat/kh-7.htm)
3. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1966-022A)
4. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-022A)