# GPS-III SV08

> GPS III satellite

**Wikidata**: [Q134704557](https://www.wikidata.org/wiki/Q134704557)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/USA-545)  
**Source**: https://4ort.xyz/entity/gps-iii-sv08

## Summary
GPS-III SV08 is the eighth satellite in the GPS Block III series, launched on May 30, 2025, by SpaceX using a Falcon 9 Block 5 rocket. It is part of the Global Positioning System (GPS) and operated by the United States Space Force. The satellite has a dry mass of 2,269 kilograms and is powered by a spacecraft solar array and LEROS propulsion.

## Key Facts
- **Instance of**: GPS Block III satellite
- **Launch date**: May 30, 2025, at 17:37:59 UTC
- **Launch vehicle**: Falcon 9 Block 5 (Booster B1092.4)
- **Launch site**: Cape Canaveral Space Launch Complex 40
- **Dry mass**: 2,269 kilograms
- **Power source**: Spacecraft solar array (2) and LEROS propulsion
- **Orbit**: Medium Earth orbit
- **Operator**: United States Space Force
- **Manufacturer**: Lockheed Martin Space
- **Spacecraft bus**: A2100
- **Service entry**: June 25, 2025, at 20:41 UTC
- **Aliases**: Navstar 84, USA-545, GPS III-08, GPS-3 8, Katherine Johnson

## FAQs
### Q: When was GPS-III SV08 launched?
A: GPS-III SV08 was launched on May 30, 2025, at 17:37:59 UTC from Cape Canaveral Space Launch Complex 40.

### Q: What is the mass of GPS-III SV08?
A: The satellite has a dry mass of 2,269 kilograms.

### Q: Who operates GPS-III SV08?
A: The satellite is operated by the United States Space Force.

### Q: What propulsion system does GPS-III SV08 use?
A: GPS-III SV08 is powered by a spacecraft solar array and LEROS propulsion.

### Q: What is the orbit of GPS-III SV08?
A: The satellite is in medium Earth orbit.

## Why It Matters
GPS-III SV08 is part of the GPS Block III series, which represents a significant upgrade to the Global Positioning System. The Block III satellites feature advanced atomic clocks, a new civil signal (L1C), and improved signal power, enhancing accuracy and reliability for navigation and timing services. The satellite's launch and operation contribute to the modernization of the GPS constellation, providing more robust and secure positioning, navigation, and timing (PNT) capabilities for military and civilian users worldwide. The United States Space Force's operation of the satellite ensures continued support for national security and global positioning needs.

## Notable For
- **First GPS Block III satellite launched by SpaceX**: GPS-III SV08 was launched using a Falcon 9 Block 5 rocket, marking the first time SpaceX launched a GPS satellite.
- **Advanced navigation capabilities**: Equipped with advanced atomic clocks and a new civil signal (L1C), improving accuracy and reliability.
- **Part of the GPS modernization program**: Contributes to the modernization of the GPS constellation, enhancing PNT services.
- **Named after Katherine Johnson**: The satellite is nicknamed "Katherine Johnson" in honor of the NASA mathematician.
- **Operated by the United States Space Force**: Ensures continued support for national security and global positioning needs.

## Body
### Overview
GPS-III SV08 is the eighth satellite in the GPS Block III series, launched on May 30, 2025. It is part of the Global Positioning System (GPS) and is operated by the United States Space Force. The satellite was launched using a Falcon 9 Block 5 rocket from Cape Canaveral Space Launch Complex 40.

### Technical Specifications
- **Mass**: 2,269 kilograms (dry weight)
- **Power**: Spacecraft solar array (2) and LEROS propulsion
- **Orbit**: Medium Earth orbit
- **Spacecraft bus**: A2100
- **Manufacturer**: Lockheed Martin Space

### Launch and Deployment
- **Launch date**: May 30, 2025, at 17:37:59 UTC
- **Launch vehicle**: Falcon 9 Block 5 (Booster B1092.4)
- **Launch site**: Cape Canaveral Space Launch Complex 40
- **Service entry**: June 25, 2025, at 20:41 UTC

### Significance
- **Modernization of GPS**: GPS-III SV08 is part of the GPS Block III series, which includes advanced features such as atomic clocks, a new civil signal (L1C), and improved signal power.
- **Enhanced PNT capabilities**: The satellite contributes to the modernization of the GPS constellation, providing more robust and secure positioning, navigation, and timing services.
- **Named after Katherine Johnson**: The satellite is nicknamed "Katherine Johnson" in honor of the NASA mathematician.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "GPS-III SV08",
  "description": "GPS Block III satellite launched on May 30, 2025, by SpaceX using a Falcon 9 Block 5 rocket.",
  "sameAs": ["https://www.wikidata.org/wiki/Q64202", "https://en.wikipedia.org/wiki/USA-545"],
  "additionalType": "Satellite",
  "manufacturer": {
    "@type": "Organization",
    "name": "Lockheed Martin Space"
  },
  "operator": {
    "@type": "Organization",
    "name": "United States Space Force"
  },
  "launchDate": "2025-05-30T17:37:59Z",
  "launchVehicle": "Falcon 9 Block 5",
  "orbit": "Medium Earth orbit",
  "mass": {
    "@type": "QuantitativeValue",
    "value": "2269",
    "unitCode": "KGM"
  }
}

## References

1. [Source](https://space.skyrocket.de/doc_sdat/navstar-3.htm)
2. Jonathan's Space Report
3. [Notice Advisory to NAVSTAR Users](https://www.navcen.uscg.gov/sites/default/files/gps/nanu/2025/2025046.nnu)