Dawn
E502415
Dawn was a NASA space probe that studied the protoplanet Vesta and the dwarf planet Ceres in the asteroid belt using ion propulsion.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dawn canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T5201901 — 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: Dawn Context triple: [Ahuna Mons, observedBySpacecraft, Dawn]
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A.
Dawn
Dawn is a feminine given name commonly associated with the early morning time when light first appears in the sky.
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B.
Dawn
Dawn is a modernist sculpture featured in Ludwig Mies van der Rohe’s iconic Barcelona Pavilion.
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C.
Dawn
Dawn is a novel by Elie Wiesel that explores the moral and psychological struggles of a young Holocaust survivor involved in a Jewish underground movement in British-controlled Palestine.
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D.
The Dawn
The Dawn is the English meaning of the codename used for Operation al-Fajr, a military operation whose title evokes the imagery of a new beginning or breakthrough.
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E.
The Dawn
"The Dawn" is the English title of Surah Al-Fajr, a chapter of the Qur’an that reflects on divine judgment, the fate of past nations, and the moral consequences of human behavior.
- 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: Dawn Target entity description: Dawn was a NASA space probe that studied the protoplanet Vesta and the dwarf planet Ceres in the asteroid belt using ion propulsion.
-
A.
Dawn
Dawn is a novel by Elie Wiesel that explores the moral and psychological struggles of a young Holocaust survivor involved in a Jewish underground movement in British-controlled Palestine.
-
B.
Dawn
Dawn is a feminine given name commonly associated with the early morning time when light first appears in the sky.
-
C.
Dawn
Dawn is a modernist sculpture featured in Ludwig Mies van der Rohe’s iconic Barcelona Pavilion.
-
D.
The Dawn
"The Dawn" is the English title of Surah Al-Fajr, a chapter of the Qur’an that reflects on divine judgment, the fate of past nations, and the moral consequences of human behavior.
-
E.
The Dawn
The Dawn is the English meaning of the codename used for Operation al-Fajr, a military operation whose title evokes the imagery of a new beginning or breakthrough.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
NASA space probe
ⓘ
interplanetary spacecraft ⓘ |
| CeresArrivalDate | 2015-03-06 ⓘ |
| CeresOrbitInsertionDate | 2015-03-06 ⓘ |
| communicationLostDate | 2018-10-31 ⓘ |
| discoveredFeatureOnCeres | bright spots in Occator Crater ⓘ |
| discoveryProgramMissionNumber | ninth Discovery mission ⓘ |
| dryMass | 747 kg ⓘ |
| enteredOrbitAround |
Ceres
ⓘ
Vesta ⓘ
linked to:
4 Vesta
|
| foundEvidenceOf |
past hydrothermal activity on Ceres
ⓘ
subsurface ice on Ceres ⓘ |
| ionThrusterType | xenon ion thruster ⓘ |
| launchCountry |
United States
ⓘ
linked to:
United States of America
|
| launchDate | 2007-09-27 ⓘ |
| launchSite | Cape Canaveral Air Force Station Space Launch Complex 17B ⓘ |
| launchVehicle |
Delta II 7925H-9.5
ⓘ
linked to:
Delta II
|
| length | 2.36 m ⓘ |
| manufacturer | Orbital Sciences Corporation ⓘ |
| MarsFlybyDate | 2009-02-17 ⓘ |
| massAtLaunch | 1217 kg ⓘ |
| missionEndDate | 2018-11-01 ⓘ |
| missionFirst |
first spacecraft to orbit a dwarf planet
ⓘ
first spacecraft to orbit two extraterrestrial bodies ⓘ |
| missionStatus | mission complete ⓘ |
| missionType |
asteroid belt exploration
ⓘ
planetary science ⓘ |
| numberOfIonThrusters | 3 ⓘ |
| objective |
investigate conditions and processes of early solar system
ⓘ
study the structure and composition of Ceres ⓘ study the structure and composition of Vesta ⓘ |
| operator | NASA ⓘ |
| powerSource | solar panels ⓘ |
| primaryPropulsion | ion propulsion ⓘ |
| program | NASA Discovery Program ⓘ |
| propulsionType | solar electric propulsion ⓘ |
| reasonForMissionEnd | hydrazine depletion ⓘ |
| scientificInstrument |
framing camera
ⓘ
gamma ray and neutron detector ⓘ visible and infrared mapping spectrometer ⓘ |
| solarArraySpan | 19.7 m ⓘ |
| spaceAgency |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| studiedBody |
1 Ceres
ⓘ
linked to:
Ceres
4 Vesta ⓘ |
| target |
dwarf planet Ceres
ⓘ
linked to:
Ceres
protoplanet Vesta ⓘ
linked to:
Vesta
|
| trajectoryAssist | Mars gravity assist ⓘ |
| VestaDepartureDate | 2012-09-05 ⓘ |
| VestaOrbitInsertionDate | 2011-07-16 ⓘ |
| xenonPropellantMass | 425 kg ⓘ |
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: Dawn Description of subject: Dawn was a NASA space probe that studied the protoplanet Vesta and the dwarf planet Ceres in the asteroid belt using ion propulsion.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.