# Clementine

> American lunar orbiter

**Wikidata**: [Q49055](https://www.wikidata.org/wiki/Q49055)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Clementine_(spacecraft))  
**Source**: https://4ort.xyz/entity/clementine

Here’s the structured knowledge entry for **Clementine**:

---

## Summary  
Clementine was an American lunar orbiter and technology demonstration spacecraft launched in 1994. It was jointly developed by the United States Naval Research Laboratory and Lawrence Livermore National Laboratory to test experimental technologies while mapping the Moon's surface. The mission provided valuable data on lunar geology and marked a significant step in space exploration.

## Key Facts  
- **Launch Date**: January 25, 1994, from Vandenberg Space Launch Complex 4 West.  
- **Mass**: 424 kg (launch weight).  
- **Manufacturers**: United States Naval Research Laboratory and Lawrence Livermore National Laboratory.  
- **Launch Vehicle**: Titan 23G (flight 23G-11).  
- **Mission Duration**: Lunar operations from February 19 to May 3, 1994; mission terminated August 8, 1994.  
- **Power Source**: Solar arrays and an R-4D thruster.  
- **Significant Achievement**: First U.S. lunar mission in over 20 years, mapping the Moon's surface in detail.  
- **Aliases**: Deep Space Program Science Experiment (DSPSE), 克列門丁.  

## FAQs  
### Q: What was the purpose of the Clementine mission?  
A: Clementine aimed to test advanced spacecraft technologies while conducting lunar mapping. It provided high-resolution images and data on the Moon's composition and topography.  

### Q: Who funded and operated Clementine?  
A: The mission was funded by the Ballistic Missile Defense Organization and NASA, with operations managed by the Ballistic Missile Defense Organization.  

### Q: Why did the Clementine mission end?  
A: The mission was terminated after a thruster malfunction on May 7, 1994, disrupted its planned trajectory, though limited contact was re-established briefly in 1995.  

## Why It Matters  
Clementine revitalized U.S. lunar exploration after a two-decade hiatus, demonstrating cost-effective deep-space missions. Its data revealed potential water ice in permanently shadowed lunar craters, reshaping scientific understanding of the Moon. The mission also validated lightweight sensor technologies, influencing future spacecraft design. By combining defense and civilian objectives, Clementine set a precedent for collaborative space ventures.  

## Notable For  
- **First Multi-Spectral Lunar Map**: Provided comprehensive data on the Moon's surface composition.  
- **Technology Demonstration**: Tested lightweight sensors and propulsion systems for future missions.  
- **Discovery of Potential Water Ice**: Detected hydrogen signatures suggesting ice in polar craters.  

## Body  
### Mission Overview  
- Launched January 25, 1994, at 16:34 UTC.  
- Lunar orbit insertion: February 19, 1994.  
- Orbited the Moon in a polar, elliptical trajectory until May 3, 1994.  

### Technical Specifications  
- **Mass**: 424 kg at launch.  
- **Power**: Two solar arrays and an R-4D thruster.  
- **Manufacturers**: Collaboration between the U.S. Naval Research Laboratory and Lawrence Livermore National Laboratory.  

### Significant Events  
- **February 19, 1994**: Achieved lunar orbit.  
- **May 7, 1994**: Thruster failure ended primary mission.  
- **August 8, 1994**: Official mission termination.  

### Legacy  
- Data used in over 70 scientific publications.  
- Paved the way for later missions like Lunar Prospector.  

## Schema Markup  
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{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Clementine",
  "description": "American lunar orbiter and technology demonstration spacecraft launched in 1994.",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q1098609",
    "https://en.wikipedia.org/wiki/Clementine_(spacecraft)"
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  "additionalType": ["Lunar Orbiter", "Technology Demonstration Spacecraft"]
}
```

--- 

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

## References

1. [Source](https://space.skyrocket.de/doc_sdat/clementine-1.htm)
2. Jonathan's Space Report
3. [Source](https://www.nasa.gov/wp-content/uploads/2018/09/beyond-earth-tagged.pdf)
4. Freebase Data Dumps. 2013
5. [Source](https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/req/naif_ids.html)
6. Quora
7. KBpedia