# USA-175

> American navigation satellite

**Wikidata**: [Q14174465](https://www.wikidata.org/wiki/Q14174465)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/USA-175)  
**Source**: https://4ort.xyz/entity/usa-175

## Summary
USA-175 is an American navigation satellite launched on December 21, 2003, as part of the NAVSTAR Global Positioning System (GPS). It was operated by the United States Air Force and manufactured by Lockheed Martin, using a Delta II launch vehicle.

## Key Facts
- **Class**: GPS satellite (part of the NAVSTAR Global Positioning System)
- **Operator**: United States Air Force
- **Launch Date**: December 21, 2003
- **Launch Site**: Cape Canaveral Space Launch Complex 17
- **Launch Vehicle**: Delta II (retired expendable launch system)
- **Manufacturer**: Lockheed Martin
- **COSPAR ID**: 2003-058A
- **SCN (Satellite Catalog Number)**: 28129
- **Alias**: Navstar 53

## FAQs
### Q: What type of satellite is USA-175?
A: USA-175 is a GPS satellite, part of the NAVSTAR Global Positioning System, used for precise navigation and timing services.

### Q: Who operates USA-175?
A: The satellite is operated by the United States Air Force.

### Q: When was USA-175 launched?
A: USA-175 was launched on December 21, 2003, from Cape Canaveral Space Launch Complex 17.

### Q: What was the launch vehicle for USA-175?
A: The satellite was launched using a Delta II rocket, part of the Delta rocket family.

### Q: Who manufactured USA-175?
A: Lockheed Martin manufactured the satellite.

## Why It Matters
USA-175 is part of the GPS constellation, which provides critical navigation and timing services for military, civilian, and commercial applications worldwide. GPS satellites like USA-175 enable precise positioning, timing, and synchronization for navigation, communication, and scientific research. The satellite's operation supports the U.S. Air Force's mission to maintain a robust global positioning infrastructure. Its launch and deployment contribute to the resilience and accuracy of the GPS network, ensuring reliable service for users worldwide.

## Notable For
- **GPS Constellation Member**: USA-175 is one of many satellites maintaining the GPS network.
- **Delta II Launch**: The satellite was launched using a Delta II rocket, a retired but historically significant launch system.
- **Lockheed Martin Manufacturing**: Lockheed Martin's involvement highlights its role in GPS satellite production.
- **U.S. Air Force Operation**: The satellite is operated by the U.S. Air Force, reflecting its role in national defense and civil applications.
- **Cape Canaveral Launch Site**: The launch from Cape Canaveral Space Launch Complex 17 underscores its significance in space operations.

## Body
### Classification
USA-175 is classified as a GPS satellite, part of the NAVSTAR Global Positioning System. It is operated by the United States Air Force and was manufactured by Lockheed Martin.

### Launch Details
- **Launch Date**: December 21, 2003
- **Launch Site**: Cape Canaveral Space Launch Complex 17
- **Launch Vehicle**: Delta II (a retired expendable launch system)
- **COSPAR ID**: 2003-058A
- **SCN (Satellite Catalog Number)**: 28129

### Operational Details
- **Operator**: United States Air Force
- **Manufacturer**: Lockheed Martin
- **Alias**: Navstar 53

### Significance
USA-175 is part of the GPS constellation, which provides global navigation and timing services. Its launch and operation contribute to the U.S. Air Force's mission of maintaining a robust positioning infrastructure. The satellite's inclusion in the GPS network ensures accurate and reliable navigation for military, civilian, and commercial users.

## References

1. Jonathan's Space Report