# PEGSAT
**Wikidata**: [Q6070828](https://www.wikidata.org/wiki/Q6070828)  
**Source**: https://4ort.xyz/entity/pegsat

Here’s the structured knowledge entry for PEGSAT:

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## Summary  
PEGSAT is an Earth observation satellite launched in 1990 aboard a Pegasus rocket. It was designed to monitor Earth from orbit and is cataloged under the satellite catalog number 20546. PEGSAT represents an early example of air-launched satellite deployment.

## Key Facts  
- **Launch Date**: April 5, 1990 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Launch Vehicle**: Pegasus rocket ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **COSPAR ID**: 1990-028A ([reference](https://www.wikidata.org/wiki/Q8449))  
- **Satellite Catalog Number (SCN)**: 20546 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Class**: Earth observation satellite ([reference](https://www.wikidata.org/wiki/Q8449))  
- **Significant Event**: Rocket launch on April 5, 1990 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Wikipedia Coverage**: Available in Spanish (es), Galician (gl), and Italian (it)  

## FAQs  
### Q: What type of satellite is PEGSAT?  
A: PEGSAT is an Earth observation satellite, designed to monitor Earth's surface and atmosphere from orbit.  

### Q: How was PEGSAT launched?  
A: It was launched aboard a Pegasus rocket, an air-launched vehicle, on April 5, 1990.  

### Q: What is PEGSAT's catalog number?  
A: PEGSAT is cataloged under the Satellite Catalog Number (SCN) 20546.  

## Why It Matters  
PEGSAT is significant as an early demonstration of air-launched satellite technology, leveraging the Pegasus rocket's unique deployment method. This approach reduced launch costs and increased flexibility compared to traditional ground-based launches. As an Earth observation satellite, PEGSAT contributed to the growing capability of remote sensing in the early 1990s, supporting environmental monitoring and scientific research. Its successful deployment highlighted the potential of innovative launch systems for small satellites.  

## Notable For  
- **Early Air-Launched Satellite**: One of the first satellites deployed via the Pegasus rocket.  
- **Cost-Effective Deployment**: Demonstrated the viability of air-launch systems for orbital missions.  
- **Limited Public Data**: Unlike major Earth observation satellites, PEGSAT has minimal publicly available mission details.  

## Body  
### Launch Details  
- **Date**: April 5, 1990  
- **Vehicle**: Pegasus rocket (inception: 1987)  
- **COSPAR ID**: 1990-028A  

### Classification  
- **Instance**: Earth observation satellite  
- **Purpose**: Monitoring Earth from orbit  

### Technical Identifiers  
- **Satellite Catalog Number (SCN)**: 20546  
- **Wolfram Language Entity Code**: `Entity["Satellite", "20546"]`  

### Coverage  
- **Wikipedia**: Articles exist in Spanish, Galician, and Italian.  
- **Google Knowledge Graph ID**: `/g/121zcp4c`  

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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