Explorer 26

Explorer 26
Explorer 26 satellite
NamesEPE-D
NASA S-3C
Mission typeSpace physics
OperatorNASA
COSPAR ID1964-086A Edit this at Wikidata
SATCAT no.00963
Mission duration12 months (planned)
56 years, 8 months and 1 day (achieved)
Spacecraft properties
SpacecraftExplorer XXVI
BusS3
ManufacturerGoddard Space Flight Center
Launch mass45.8 kg (101 lb) [1]
Power4 deployable solar arrays and batteries
Start of mission
Launch date21 December 1964,
09:00:03 GMT
RocketThor-Delta C (Thor 393 / Delta 027)
Launch siteCape Canaveral, LC-17A
ContractorDouglas Aircraft Company
Entered service21 December 1964
End of mission
Last contact26 May 1967
Decay date23 August 2021
Orbital parameters
Reference systemGeocentric orbit[2]
RegimeHighly elliptical orbit
Perigee altitude171 km (106 mi)
Apogee altitude8,545 km (5,310 mi)
Inclination18.10°
Period184.50 minutes
Instruments
Fluxgate Magnetometers
Omnidirectional and Unidirectional Electron and Proton Fluxes
Proton-Electron Scintillation Detector
Solar Cell Damage
Solid-State Electron Detector
Explorer Program

Explorer 26 was a NASA satellite launched on 21 December 1964, as part of NASA's Explorer program. Its primary mission was to study the Earth's magnetic field.[1]

  1. ^ a b "Display: Explorer 26 1964-086A". NASA. 28 October 2021. Retrieved 8 November 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  2. ^ "Trajectory: Explorer 26 1964-086A". NASA. 28 October 2021. Retrieved 8 November 2021.