WMAP

E418613
cosmic microwave background observatory space observatory spacecraft

WMAP (Wilkinson Microwave Anisotropy Probe) was a NASA space observatory that precisely mapped the cosmic microwave background radiation, revolutionizing our understanding of the universe’s age, composition, and development.

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All labels observed (8)

Label Occurrences
Wilkinson Microwave Anisotropy Probe 3
WMAP canonical 2
David Todd Wilkinson (via WMAP spacecraft name) 1

Statements (71)

Predicate Object
instanceOf cosmic microwave background observatory ⓘ
space observatory ⓘ
spacecraft ⓘ
alsoKnownAs WMAP ⓘ
surface form: MAP (Microwave Anisotropy Probe) before renaming
angularResolution from about 0.21 to 0.88 degrees depending on frequency ⓘ
constrained Hubble constant ⓘ
baryon density of the universe ⓘ
dark energy density of the universe ⓘ
dark matter density of the universe ⓘ
contractor Space Systems/Loral ⓘ
countryOfOrigin United States of America ⓘ
surface form: United States
dataArchive Legacy Archive for Microwave Background Data Analysis ⓘ
surface form: NASA Legacy Archive for Microwave Background Data Analysis (LAMBDA)
dataRelease first-year data release 2003 ⓘ
five-year data release 2008 ⓘ
nine-year data release 2012 ⓘ
seven-year data release 2010 ⓘ
three-year data release 2006 ⓘ
dataUsage creation of full-sky CMB temperature maps ⓘ
tests of Big Bang cosmology ⓘ
decommissionDate 2010-10 ⓘ
determined age of the universe about 13.7 billion years ⓘ
distanceFromEarth approximately 1.5 million kilometers ⓘ
extendedMissionEnd 2010-08 ⓘ
found universe is composed of roughly 23 percent dark matter ⓘ
universe is composed of roughly 4 percent baryonic matter ⓘ
universe is composed of roughly 73 percent dark energy ⓘ
universe is spatially flat to high precision ⓘ
frequencyBands 23 GHz ⓘ
33 GHz ⓘ
41 GHz ⓘ
61 GHz ⓘ
94 GHz ⓘ
fullName WMAP self-linksurface differs ⓘ
surface form: Wilkinson Microwave Anisotropy Probe
instrumentType differential microwave radiometers ⓘ
launchCountry United States of America ⓘ
surface form: United States
launchDate 2001-06-30 ⓘ
launchSite Cape Canaveral Air Force Station Space Launch Complex 17B ONNED1 ⓘ
launchVehicle Delta II ⓘ
surface form: Delta II 7425-10
legacy established standard cosmological parameter set ⓘ
revolutionized precision cosmology ⓘ
massAtLaunch 840 kilograms ⓘ
measured cosmic microwave background anisotropies ⓘ
polarization of the cosmic microwave background ⓘ
temperature fluctuations of the cosmic microwave background ⓘ
missionStart 2001-06-30 ⓘ
missionType cosmology mission ⓘ
space-based observatory ⓘ
namedAfter David Todd Wilkinson NERFINISHED ⓘ
operatedBy Goddard Space Flight Center ⓘ
surface form: NASA Goddard Space Flight Center
operator NASA ⓘ
orbit Lissajous orbit around Sun–Earth L2 point ⓘ
orbitReference Sun–Earth system ⓘ
orbitRegime Lagrange point orbit ⓘ
PI Charles L. Bennett ⓘ
power 419 watts ⓘ
precededBy Cosmic Background Explorer ⓘ
surface form: COBE
primaryMirrorDiameter 1.4 meters ⓘ
primaryMissionEnd 2003-09 ⓘ
program NASA Explorer Program ⓘ
provided precision measurements of cosmological parameters ⓘ
renamedInHonorOf David Todd Wilkinson in 2001 ⓘ
resultPublishedIn The Astrophysical Journal Supplement Series ⓘ
surface form: Astrophysical Journal Supplement Series
scanStrategy full-sky survey ⓘ
scienceOperationsStart 2001-08 ⓘ
scienceTeamMember David Spergel ⓘ
surface form: David N. Spergel

Gary Hinshaw NERFINISHED ⓘ
Lyman Page ⓘ
spacecraftBus LM-900 ⓘ
succeededBy Planck spacecraft ⓘ
supportedTheory Lambda-CDM model ⓘ
surface form: Lambda-CDM cosmological model

cosmic inflation ⓘ

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Planck spacecraft → predecessor → WMAP ⓘ
Lambda-CDM model → supportedBy → WMAP ⓘ
this entity surface form: WMAP observations
Lissajous orbit → wasUsedBy → WMAP ⓘ
this entity surface form: WMAP spacecraft
cosmic microwave background → measuredBy → WMAP ⓘ
NASA Explorer Program → notableMission → WMAP ⓘ
this entity surface form: Wilkinson Microwave Anisotropy Probe
WMAP Team → notableWork → WMAP ⓘ
this entity surface form: Wilkinson Microwave Anisotropy Probe mission
WMAP Team → partOf → WMAP ⓘ
this entity surface form: Wilkinson Microwave Anisotropy Probe project
WMAP Team → usedInstrument → WMAP ⓘ
this entity surface form: Wilkinson Microwave Anisotropy Probe
WMAP Team → namedAfter → WMAP ⓘ
this entity surface form: David Todd Wilkinson (via WMAP spacecraft name)
WMAP → fullName → WMAP self-linksurface differs ⓘ
this entity surface form: Wilkinson Microwave Anisotropy Probe
WMAP → alsoKnownAs → WMAP ⓘ
this entity surface form: MAP (Microwave Anisotropy Probe) before renaming