# Explorer 32

> former NASA research satellite

**Wikidata**: [Q49886](https://www.wikidata.org/wiki/Q49886)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Explorer_32)  
**Source**: https://4ort.xyz/entity/explorer-32

## Summary
Explorer 32 was a NASA Earth observation satellite launched in 1966 to study the upper atmosphere. Also known as Atmosphere Explorer-B (AE-B), it collected critical early data on atmospheric density, composition, and solar interactions. The satellite reentered Earth's atmosphere in February 1985.

## Key Facts
- Launched on May 25, 1966, at 14:00 UTC from Cape Canaveral Space Launch Complex 17B
- Operated by the National Aeronautics and Space Administration (NASA) of the United States
- Launch vehicle: Delta C rocket (serial number 436/D038)
- COSPAR ID: 1966-044A; NSSDCA ID: 1966-044A; SCN: 02183
- Designed as part of the Earth Observing Satellite program for atmospheric research
- Reentered Earth’s atmosphere on February 22, 1985
- Alternate name: Atmosphere Explorer-B (AE-B)

## FAQs
### Q: What was the purpose of Explorer 32?
A: Explorer 32 was designed to study Earth's upper atmosphere, including its density, temperature, and interaction with solar radiation. It contributed valuable scientific data during its operational lifetime.

### Q: When was Explorer 32 launched?
A: Explorer 32 was launched on May 25, 1966, from Cape Canaveral using a Delta C launch vehicle.

### Q: How long did Explorer 32 remain in orbit?
A: Explorer 32 remained in orbit until it reentered Earth’s atmosphere on February 22, 1985, nearly 19 years after its initial launch.

## Why It Matters
Explorer 32 played a key role in advancing understanding of Earth's upper atmospheric layers through dedicated scientific measurements. As part of NASA's broader Explorer program, which has historically enabled cost-effective access to space for heliophysics and astrophysics missions, Explorer 32 exemplified early efforts to monitor planetary environments via orbital platforms. Its findings supported models used in aerospace engineering and improved forecasting capabilities related to satellite drag and orbital decay. The mission also demonstrated successful deployment of specialized instrumentation tailored for atmospheric sounding, influencing future designs of environmental monitoring satellites.

## Notable For
- Being one of the earliest dedicated atmospheric explorer satellites under NASA’s AE series
- Providing foundational datasets on thermospheric and exospheric properties between 1966 and 1985
- Utilizing the reliable Delta C launch system, contributing to the legacy of American expendable launch vehicles
- Operating successfully for nearly two decades before natural deorbit due to atmospheric drag
- Serving dual classification as both an Earth observation satellite and a former research platform

## Body
### Mission Overview
Explorer 32, officially designated as Atmosphere Explorer-B (AE-B), was developed by NASA to investigate the physical characteristics of Earth's upper atmosphere. The spacecraft formed part of the wider Explorer program, which prioritized low-cost scientific missions aimed at expanding knowledge of near-Earth space.

### Technical Specifications
The satellite carried instruments optimized for measuring atmospheric parameters such as neutral density, ion composition, and solar EUV flux. These tools enabled scientists to analyze variations in atmospheric behavior across different altitudes and over time.

### Launch Details
- **Launch Date:** May 25, 1966  
- **Launch Time:** 14:00 UTC  
- **Launch Site:** Cape Canaveral Space Launch Complex 17B  
- **Launch Vehicle:** Delta C (Serial Number: 436/D038)  

### Operational Timeline
Following a successful ascent, Explorer 32 began transmitting scientific data back to ground stations. Over almost two decades, it tracked changes in atmospheric conditions influenced by solar cycles and geomagnetic activity. Eventually succumbing to orbital decay caused by atmospheric friction, the satellite reentered Earth's atmosphere on February 22, 1985.

### Legacy and Impact
Data gathered by Explorer 32 informed atmospheric modeling essential for predicting satellite lifespans and refining orbital mechanics calculations. Its contributions helped shape subsequent generations of environmental monitoring systems and enhanced comprehension of how space weather affects terrestrial surroundings.

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013
3. [Source](https://www.n2yo.com/satellite/?s=02183)