# GPS SVN 4

> American GPS navigation satellite

**Wikidata**: [Q7072863](https://www.wikidata.org/wiki/Q7072863)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/OPS_5114)  
**Source**: https://4ort.xyz/entity/gps-svn-4

## Summary
GPS SVN 4 (also known as Navstar 4) is an American GPS navigation satellite launched in 1978 as part of the NAVSTAR Global Positioning System (GPS). Operated by the United States Air Force, it was the fourth satellite in the GPS constellation and played a role in early GPS technology development.

## Key Facts
- **Launch Date**: December 11, 1978, at 03:59 UTC
- **Operator**: United States Air Force
- **Manufacturer**: Rockwell International
- **Launch Vehicle**: Atlas E/F (flight number 39F)
- **Launch Site**: Vandenberg Space Launch Complex 3 East
- **COSPAR ID**: 1978-112A
- **NSSDCA ID**: 1978-112A
- **Aliases**: Navstar 4, GPS 4, GPS I-4, GPS 1-4, OPS 5114, Navstar GPS SVN 4
- **Preceded by**: GPS SVN 3
- **Followed by**: GPS SVN 5

## FAQs
### Q: When was GPS SVN 4 launched?
A: GPS SVN 4 was launched on December 11, 1978, at 03:59 UTC from Vandenberg Space Launch Complex 3 East.

### Q: Who operated GPS SVN 4?
A: The satellite was operated by the United States Air Force.

### Q: What was the launch vehicle for GPS SVN 4?
A: It was launched using an Atlas E/F rocket, specifically flight number 39F.

### Q: What are the alternative names for GPS SVN 4?
A: It is also known as Navstar 4, GPS 4, GPS I-4, GPS 1-4, OPS 5114, and Navstar GPS SVN 4.

### Q: What was the significance of GPS SVN 4 in the GPS constellation?
A: As the fourth satellite in the GPS constellation, it contributed to the early development and testing of the Global Positioning System.

## Why It Matters
GPS SVN 4 was a critical component in the early stages of the Global Positioning System (GPS), which has since become a cornerstone of modern navigation and timing technologies. As part of the initial GPS satellite constellation, it helped validate the concept of using a network of satellites to provide precise location and time information globally. This technology has revolutionized various sectors, including military operations, aviation, maritime navigation, and everyday consumer applications like smartphone navigation. The successful deployment and operation of satellites like GPS SVN 4 laid the groundwork for the fully operational GPS system we rely on today, demonstrating the feasibility and reliability of satellite-based navigation.

## Notable For
- **Early GPS Satellite**: One of the first satellites in the NAVSTAR GPS constellation, contributing to the foundational development of GPS technology.
- **Military Operation**: Operated by the United States Air Force, highlighting its role in national defense and strategic navigation.
- **Historical Launch**: Launched in 1978, marking an early milestone in the deployment of GPS satellites.
- **Atlas E/F Launch**: Utilized the Atlas E/F rocket, a notable launch vehicle in the history of American space exploration.
- **Multiple Designations**: Known by several aliases, reflecting its importance and recognition in various contexts.

## Body
### Launch and Deployment
GPS SVN 4 was launched on December 11, 1978, at 03:59 UTC from Vandenberg Space Launch Complex 3 East. The launch vehicle was an Atlas E/F rocket, designated as flight number 39F. This launch was a significant event in the early development of the GPS constellation.

### Technical Specifications
- **COSPAR ID**: 1978-112A
- **NSSDCA ID**: 1978-112A
- **Manufacturer**: Rockwell International
- **Operator**: United States Air Force

### Role in GPS Constellation
GPS SVN 4 was the fourth satellite in the GPS constellation, following GPS SVN 3 and preceding GPS SVN 5. As part of the initial deployment, it played a crucial role in testing and validating the GPS system's capabilities.

### Aliases and Designations
The satellite is known by several names, including:
- Navstar 4
- GPS 4
- GPS I-4
- GPS 1-4
- OPS 5114
- Navstar GPS SVN 4

These designations reflect its various roles and recognition in different contexts, both military and civilian.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "GPS SVN 4",
  "description": "American GPS navigation satellite launched in 1978 as part of the NAVSTAR Global Positioning System.",
  "sameAs": ["https://www.wikidata.org/wiki/Q12345678", "https://en.wikipedia.org/wiki/OPS_5114"],
  "additionalType": "GPS satellite"
}

## References

1. Jonathan's Space Report