Explorer 8

Explorer 8
Explorer 8 satellite
NamesS-30
NASA-S30
Mission typeEarth science
OperatorNASA
Harvard designation1960 Xi 1
COSPAR ID1960-014A Edit this at Wikidata
SATCAT no.00060
Mission duration54 days (achieved)
Spacecraft properties
SpacecraftExplorer VIII
Spacecraft typeScience Explorer
BusS-30
ManufacturerJet Propulsion Laboratory
Launch mass40.88 kg (90.1 lb)
Dimensions76 × 76 cm (30 × 30 in)
Power100 watts
Start of mission
Launch date3 November 1960, 05:23:10 GMT
RocketJuno II (AM-19D)
Launch siteCape Canaveral, LC-26B
ContractorArmy Ballistic Missile Agency
Entered service3 November 1960
End of mission
Last contact27 December 1960
Decay date28 March 2012
Orbital parameters
Reference systemGeocentric orbit[1]
RegimeMedium Earth orbit
Perigee altitude416 km (258 mi)
Apogee altitude2,286 km (1,420 mi)
Inclination49.9°
Period112.7 minutes
Instruments
Electric Field Meter
Ion Traps
Langmuir Probe
Micrometeorite Microphone
Micrometeorite Photomultiplier
RF Impedance
Satellite Drag Atmospheric Density
Explorer program

Explorer 8 was a NASA research satellite launched on 3 November 1960.[2] It was intended to study the temporal and spatial distribution of the electron density, the electron temperature, the ion concentration, the ion mass, the micrometeorite distribution, and the micrometeorite mass in the ionosphere at altitudes between 400 km (250 mi) and 1,600 km (990 mi) and their variation from full sunlit conditions to full shadow, or nighttime, conditions.[3]

  1. ^ McDowell, Jonathan (9 September 2021). "Satellite Catalog". Jonathan's Space Report. Retrieved 3 November 2021.
  2. ^ "Explorers: Searching the Universe Forty Years Later". NASA Fact Sheets. NASA. Archived from the original on 11 May 2008. Retrieved 3 February 2008. Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ Cite error: The named reference Display was invoked but never defined (see the help page).