Explorer 32
Explorer 32 satellite  | |
| Names | AE-B Atmosphere Explorer-B  | 
|---|---|
| Mission type | Earth science | 
| Operator | NASA | 
| COSPAR ID | 1966-044A | 
| SATCAT no. | 02183 | 
| Website | Explorer 32 | 
| Mission duration | 10 months (achieved) | 
| Spacecraft properties | |
| Spacecraft | Explorer XXXII | 
| Spacecraft type | Atmosphere Explorer | 
| Bus | AE | 
| Manufacturer | Goddard Space Flight Center | 
| Launch mass | 224.5 kg (495 lb) | 
| Power | Silver zinc batteries and Solar cells  | 
| Start of mission | |
| Launch date | 25 May 1966, 14:00:00 GMT | 
| Rocket | Thor-Delta C1 (Thor 436 / Delta 038) | 
| Launch site | Cape Canaveral, LC-17B | 
| Contractor | Douglas Aircraft Company | 
| Entered service | 25 May 1966 | 
| End of mission | |
| Last contact | March 1967 | 
| Decay date | 22 February 1985 | 
| Orbital parameters | |
| Reference system | Geocentric orbit | 
| Regime | Low Earth orbit | 
| Perigee altitude | 276 km (171 mi) | 
| Apogee altitude | 2,725 km (1,693 mi) | 
| Inclination | 64.67° | 
| Period | 116.00 minutes | 
| Instruments | |
| Electron Temperature and Density Ion Mass Spectrometer Neutral Particle Magnetic Mass Spectrometer Pressure Gauges Satellite Drag Atmospheric Density  | |
|   Atmosphere Explorer  | |
Explorer 32, also known as Atmosphere Explorer-B (AE-B), was a NASA satellite launched by the United States to study the Earth's upper atmosphere. It was launched from Cape Canaveral on a Delta C1 launch vehicle, on 25 May 1966. It was the second of five "Atmosphere Explorer", the first being Explorer 17. Though it was placed in a higher-than-expected orbit by a malfunctioning second stage on its launch vehicle, Explorer 32 returned data for ten months before failing due to a sudden depressurization. The satellite reentered the Earth's atmosphere on 22 February 1985.