Explorer 15
| Explorer 15 satellite | |
| Names | EPE-C Energetic Particles Explorer-C NASA S-3B | 
|---|---|
| Mission type | Space physics | 
| Operator | NASA | 
| Harvard designation | 1962 βλ1 | 
| COSPAR ID | 1962-059A | 
| SATCAT no. | 00445 | 
| Mission duration | 12 months (planned) 3 months (achieved) | 
| Spacecraft properties | |
| Spacecraft | Explorer XV | 
| Spacecraft type | Energetic Particles Explorer | 
| Bus | S-3 | 
| Manufacturer | Goddard Space Flight Center | 
| Launch mass | 44.4 kg (98 lb) | 
| Power | 4 deployable solar arrays and batteries | 
| Start of mission | |
| Launch date | 27 October 1962, 23:15:01 GMT | 
| Rocket | Thor-Delta A (Thor 346 / Delta 014) | 
| Launch site | Cape Canaveral, LC-17B | 
| Contractor | Douglas Aircraft Company | 
| Entered service | 27 October 1962 | 
| End of mission | |
| Last contact | 30 January 1963 | 
| Decay date | 19 December 1978 | 
| Orbital parameters | |
| Reference system | Geocentric orbit | 
| Regime | Highly elliptical orbit | 
| Perigee altitude | 300 km (190 mi) | 
| Apogee altitude | 17,438 km (10,835 mi) | 
| Inclination | 18.0° | 
| Period | 311.40 minutes | 
| Instruments | |
| Angular Distribution Directional and Omnidirectional Energetic Protons and Electrons Electron and Proton Solid-State Detectors Fluxgate Magnetometers Proton-Electron Scintillation Detector | |
| Explorer program | |
Explorer 15, also called EPE-C or Energetic Particles Explorer-C, was a NASA satellite launched as part of the Explorer program. Explorer 15 was launched on 27 October 1962, at Cape Canaveral Air Force Station, Florida, United States, with a Thor-Delta A .