# Calsphere 2
**Wikidata**: [Q9184298](https://www.wikidata.org/wiki/Q9184298)  
**Source**: https://4ort.xyz/entity/calsphere-2

Here’s the structured knowledge entry for **Calsphere 2**:

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## Summary  
Calsphere 2 is a geodetic satellite launched in 1964 to support research and applications in geodesy, the science of Earth's shape and gravitational field. It was launched aboard a Thor-Ablestar rocket from Vandenberg Space Launch Complex 2 and is cataloged under the COSPAR ID 1964-063E.  

## Key Facts  
- **Class**: Geodetic satellite (artificial satellite used for geodesy research).  
- **Launch Date**: October 6, 1964.  
- **Launch Vehicle**: Thor-Ablestar (American expendable launch system).  
- **Launch Site**: Vandenberg Space Launch Complex 2.  
- **COSPAR ID**: 1964-063E.  
- **Satellite Catalog Number (SCN)**: 00902.  
- **Significant Event**: Rocket launch on October 6, 1964, from Vandenberg Space Launch Complex 2.  

## FAQs  
### Q: What was the purpose of Calsphere 2?  
A: Calsphere 2 was designed as a geodetic satellite to study Earth's shape, gravitational field, and related geophysical measurements.  

### Q: Where was Calsphere 2 launched from?  
A: It was launched from Vandenberg Space Launch Complex 2 in California, USA.  

### Q: What rocket was used to launch Calsphere 2?  
A: It was launched aboard a Thor-Ablestar, an American expendable launch system.  

## Why It Matters  
Calsphere 2 contributed to advancements in geodesy, providing critical data for understanding Earth's gravitational field and shape. Geodetic satellites like Calsphere 2 are essential for mapping, navigation, and geophysical research, influencing modern GPS systems and Earth observation technologies. Its launch marked progress in mid-20th-century space exploration, demonstrating the practical applications of satellite technology beyond communications and weather monitoring.  

## Notable For  
- One of the early geodetic satellites launched in the 1960s.  
- Part of a series of missions advancing geodesy research.  
- Launched aboard the Thor-Ablestar, a notable early American launch vehicle.  

## Body  
### Launch Details  
- **Date**: October 6, 1964.  
- **Site**: Vandenberg Space Launch Complex 2.  
- **Vehicle**: Thor-Ablestar.  

### Technical Specifications  
- **Classification**: Geodetic satellite.  
- **Catalog Numbers**:  
  - COSPAR ID: 1964-063E.  
  - SCN: 00902.  

### Mission Context  
- Supported geodesy research, including Earth's shape and gravitational field measurements.  
- Contributed to foundational data for later satellite-based navigation systems.  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Jonathan's Space Report