# Explorer 50

> NASA satellite of the Explorer program

**Wikidata**: [Q12015954](https://www.wikidata.org/wiki/Q12015954)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Explorer_50)  
**Source**: https://4ort.xyz/entity/explorer-50

## Summary
Explorer 50 (also known as IMP-J or IMP-8) is a NASA research satellite launched in 1973 as part of the Explorer program. It was designed for interplanetary monitoring and scientific research, orbiting Earth to collect data on space phenomena. The satellite was launched aboard a Delta 1000 rocket from Cape Canaveral.

## Key Facts
- **Official Name**: Explorer 50 (IMP-J/IMP-8)  
- **Launch Date**: October 26, 1973  
- **COSPAR ID**: 1973-078A  
- **Launch Vehicle**: Delta 1000  
- **Launch Site**: Cape Canaveral Space Launch Complex 17  
- **Mission Class**: Research satellite (Interplanetary Monitoring Platform)  
- **Satellite Catalog Number (SCN)**: 06893  
- **Aliases**: IMP-J, IMP-8, Interplanetary Monitoring Platform 8  

## FAQs
### Q: What was the purpose of Explorer 50?  
A: Explorer 50 was designed to monitor interplanetary space, studying magnetic fields, solar wind, and cosmic rays to improve understanding of space weather.  

### Q: How long did Explorer 50 operate?  
A: While exact decommissioning dates aren't provided, Explorer 50 was part of NASA's long-running IMP series, known for extended missions collecting valuable scientific data.  

### Q: What rocket launched Explorer 50?  
A: It was launched aboard a Delta 1000, a series of American expendable launch systems used for NASA and military payloads.  

## Why It Matters  
Explorer 50 (IMP-8) played a critical role in advancing space science by providing long-term data on Earth's magnetosphere and solar-terrestrial interactions. As part of NASA's Interplanetary Monitoring Platform series, it contributed to foundational knowledge about space weather, which affects satellite communications, astronaut safety, and power grids on Earth. Its extended mission duration made it a key resource for researchers studying cosmic rays and solar wind dynamics. The satellite's findings helped shape modern space weather forecasting models, demonstrating the value of sustained orbital observations for both scientific and practical applications.  

## Notable For  
- **Longevity**: Part of NASA's enduring IMP series, known for extended operational lifespans.  
- **Scientific Contributions**: Provided critical data on solar wind and Earth's magnetosphere.  
- **Launch Heritage**: Used the reliable Delta 1000 rocket, a workhorse for U.S. space missions.  

## Body  
### Mission Overview  
Explorer 50, designated IMP-8, was launched on October 26, 1973, as part of NASA's Explorer program. Its primary mission was to monitor interplanetary conditions and study space physics.  

### Technical Specifications  
- **Launch Vehicle**: Delta 1000 series rocket  
- **Launch Site**: Cape Canaveral Space Launch Complex 17  
- **COSPAR ID**: 1973-078A  
- **Satellite Catalog Number**: 06893  

### Scientific Objectives  
- Studied solar wind dynamics  
- Monitored cosmic rays and magnetic fields  
- Contributed to space weather research  

### Legacy  
Explorer 50's data remains relevant for historical studies of solar activity and its effects on Earth's space environment.

## References

1. Jonathan's Space Report