WMAP
E418613
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.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T4148475 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: WMAP Context triple: [Planck spacecraft, predecessor, WMAP]
-
A.
Planck
Planck is a German theoretical physicist renowned as the founder of quantum theory and a Nobel Prize laureate in Physics.
-
B.
CMB
CMB is the National Rail station code for Cambridge North railway station in Cambridge, England.
-
C.
CMB
CMB is a U.S. Army decoration awarded to medical personnel who provide frontline medical care while engaged in active ground combat.
-
D.
Planck spacecraft
The Planck spacecraft was a European Space Agency space observatory designed to study the cosmic microwave background radiation with unprecedented precision to improve our understanding of the early universe and cosmology.
-
E.
Cosmic Background Explorer
The Cosmic Background Explorer (COBE) was a NASA satellite mission that made precise measurements of the cosmic microwave background radiation, providing key evidence for the Big Bang theory and earning its scientists the Nobel Prize in Physics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: WMAP Target entity description: 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.
-
A.
Planck
Planck is a German theoretical physicist renowned as the founder of quantum theory and a Nobel Prize laureate in Physics.
-
B.
CMB
CMB is the National Rail station code for Cambridge North railway station in Cambridge, England.
-
C.
CMB
CMB is a U.S. Army decoration awarded to medical personnel who provide frontline medical care while engaged in active ground combat.
-
D.
Planck spacecraft
The Planck spacecraft was a European Space Agency space observatory designed to study the cosmic microwave background radiation with unprecedented precision to improve our understanding of the early universe and cosmology.
-
E.
Cosmic Background Explorer
The Cosmic Background Explorer (COBE) was a NASA satellite mission that made precise measurements of the cosmic microwave background radiation, providing key evidence for the Big Bang theory and earning its scientists the Nobel Prize in Physics.
- F. None of above. chosen
Statements (71)
| Predicate | Object |
|---|---|
| instanceOf |
cosmic microwave background observatory
ⓘ
space observatory ⓘ spacecraft ⓘ |
| alsoKnownAs |
MAP (Microwave Anisotropy Probe) before renaming
ⓘ
linked to:
WMAP
|
| 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
ⓘ
linked to:
United States of America
|
| dataArchive | 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 |
Wilkinson Microwave Anisotropy Probe
ⓘ
linked to:
WMAP
|
| instrumentType | differential microwave radiometers ⓘ |
| launchCountry |
United States
ⓘ
linked to:
United States of America
|
| launchDate | 2001-06-30 ⓘ |
| launchSite | Cape Canaveral Air Force Station Space Launch Complex 17B ONNED1 ⓘ |
| launchVehicle |
Delta II 7425-10
ⓘ
linked to:
Delta II
|
| 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 |
NASA Goddard Space Flight Center
ⓘ
linked to:
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 |
COBE
ⓘ
linked to:
Cosmic Background Explorer
|
| primaryMirrorDiameter | 1.4 meters ⓘ |
| primaryMissionEnd | 2003-09 ⓘ |
| program | NASA Explorer Program ⓘ |
| provided | precision measurements of cosmological parameters ⓘ |
| renamedInHonorOf | David Todd Wilkinson in 2001 ⓘ |
| resultPublishedIn |
Astrophysical Journal Supplement Series
ⓘ
linked to:
The Astrophysical Journal Supplement Series
|
| scanStrategy | full-sky survey ⓘ |
| scienceOperationsStart | 2001-08 ⓘ |
| scienceTeamMember |
David N. Spergel
ⓘ
linked to:
David Spergel
Gary Hinshaw NERFINISHED ⓘ Lyman Page ⓘ |
| spacecraftBus | LM-900 ⓘ |
| succeededBy | Planck spacecraft ⓘ |
| supportedTheory |
Lambda-CDM cosmological model
ⓘ
linked to:
Lambda-CDM model
cosmic inflation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: WMAP Description of subject: 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.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: WMAP
linked to: WMAP
linked to: WMAP
linked to: WMAP
linked to: WMAP
linked to: WMAP
linked to: WMAP