# KH 7-35

> American reconnaissance satellite

**Wikidata**: [Q101353012](https://www.wikidata.org/wiki/Q101353012)  
**Source**: https://4ort.xyz/entity/kh-7-35

## Summary
KH 7-35 (also known as GAMBIT-1 35) was an American reconnaissance satellite operated by the United States Air Force. Launched on December 5, 1966, it was part of the KH-7 Gambit class of satellites and had a mass of 2,000 kilograms. The mission utilized a film-return capsule manufactured by General Electric, which re-entered the atmosphere on December 14, 1966.

## Key Facts
- **Classification:** KH 7-35 is an instance of the KH-7 Gambit series of U.S. reconnaissance satellites.
- **Launch Date:** Launched on December 5, 1966, at 21:09.
- **COSPAR ID:** Identified internationally as 1966-109A.
- **Operator:** United States Air Force.
- **Mass:** 2,000 kilograms.
- **Launch Vehicle:** Atlas SLV-3 Agena-D (serial number 7125).
- **Launch Site:** Vandenberg Space Launch Complex 4 East.
- **Manufacturers:** General Electric (Spacecraft/Recovery Vehicle) and Kodak (Payload).
- **Recovery:** The space capsule underwent atmospheric entry on December 14, 1966.

## FAQs
### Q: What was KH 7-35?
A: KH 7-35 was an American reconnaissance satellite launched on December 5, 1966. It was the 35th satellite in the GAMBIT-1 (KH-7) program operated by the United States Air Force.

### Q: Who manufactured the KH 7-35 satellite?
A: The satellite was built through a collaboration between General Electric, which manufactured the Orbital Control Vehicle and Satellite Recovery Vehicle, and Kodak, which provided the Photographic Payload Section.

### Q: When did the KH 7-35 mission conclude?
A: The mission's space capsule returned to Earth via atmospheric entry on December 14, 1966, nine days after its launch.

## Why It Matters
KH 7-35 serves as a specific historical example of the KH-7 Gambit program, which was a critical component of United States space-based surveillance during the mid-1960s. As Mission 4035, it represents the technological capabilities of the era, particularly the use of film-return mechanisms where physical capsules containing photographic intelligence were ejected from the satellite and recovered after re-entering Earth's atmosphere.

This mission highlights the operational collaboration between major aerospace contractors like General Electric and Kodak under the direction of the U.S. Air Force. The specific deployment of KH 7-35 from Vandenberg Space Launch Complex 4 East aboard an Atlas SLV-3 Agena-D rocket underscores the reliance on expendable launch systems for intelligence gathering during this period. The brief mission duration, ending with capsule recovery roughly nine days after launch, illustrates the "snatch and grab" nature of early reconnaissance satellites compared to modern digital imaging systems.

## Notable For
- **Program Affiliation:** Being a distinct unit (Mission 4035) of the KH-7 Gambit series.
- **Dual Manufacturing:** Featuring a specialized division of labor between General Electric (spacecraft bus) and Kodak (camera payload).
- **Recovery Method:** Utilizing a physical Satellite Recovery Vehicle (SRV) for atmospheric re-entry to return film.
- **Precise Identification:** Holding multiple operational identifiers including OPS 1890 and AFP-206 SV 985.

## Body

### Mission Design and Identity
KH 7-35 was designated with the COSPAR ID 1966-109A. It is also referred to by several aliases in military and aerospace records, including KH7-35, GAMBIT-1 35, Mission 4035, OPS 1890, AFP-206 SV 985, and GAMBIT SV 985. It was an instance of the KH-7 Gambit class, a series of U.S. reconnaissance satellites active during the 1960s.

### Technical Specifications
The satellite had a total mass of 2,000 kilograms. The construction of the vehicle was divided by function:
*   **Spacecraft:** Manufactured by General Electric, identified as the Orbital Control Vehicle and the Satellite Recovery Vehicle.
*   **Payload:** Manufactured by Kodak, identified as the Photographic Payload Section.

### Launch and Trajectory
The satellite was launched on December 5, 1966, at 21:09 hours. The launch took place at Vandenberg Space Launch Complex 4 East. The delivery system used was an Atlas SLV-3 Agena-D expendable launch system.

### Mission Events
According to trajectory data, a significant event involving the space capsule occurred on December 14, 1966, classified as an atmospheric entry. This event marked the recovery phase of the reconnaissance film. The launch itself is recorded as a "rocket launch" event originating from the Vandenberg site.

## 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=1966-109A)
4. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1966-109A)