EQUULEUS CubeSat
E309956
EQUULEUS CubeSat is a small Japanese-led spacecraft designed to demonstrate low-energy trajectory techniques and study Earth's plasmasphere from cislunar space.
All labels observed (1)
| Label | Occurrences |
|---|---|
| EQUULEUS CubeSat canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2849363 — 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: EQUULEUS CubeSat Context triple: [Artemis I, carriedPayload, EQUULEUS CubeSat]
-
A.
BioSentinel CubeSat
BioSentinel CubeSat is a NASA bioscience mission designed to study the effects of
-
B.
ArgoMoon CubeSat
ArgoMoon CubeSat is a small Italian-built spacecraft designed to demonstrate proximity operations and imaging capabilities in deep space during NASA’s Artemis I mission.
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C.
LunaH-Map CubeSat
LunaH-Map CubeSat is a small NASA spacecraft designed to map and study hydrogen deposits, particularly water ice, in permanently shadowed regions near the Moon’s south pole.
-
D.
NEA Scout CubeSat
NEA Scout CubeSat is a small solar sail–powered NASA spacecraft designed to perform close-up reconnaissance of a near-Earth asteroid.
-
E.
OMOTENASHI CubeSat
OMOTENASHI CubeSat is a small Japanese spacecraft designed by JAXA to demonstrate low-cost lunar landing and surface exploration technologies.
- 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: EQUULEUS CubeSat Target entity description: EQUULEUS CubeSat is a small Japanese-led spacecraft designed to demonstrate low-energy trajectory techniques and study Earth's plasmasphere from cislunar space.
-
A.
BioSentinel CubeSat
BioSentinel CubeSat is a NASA bioscience mission designed to study the effects of
-
B.
ArgoMoon CubeSat
ArgoMoon CubeSat is a small Italian-built spacecraft designed to demonstrate proximity operations and imaging capabilities in deep space during NASA’s Artemis I mission.
-
C.
LunaH-Map CubeSat
LunaH-Map CubeSat is a small NASA spacecraft designed to map and study hydrogen deposits, particularly water ice, in permanently shadowed regions near the Moon’s south pole.
-
D.
NEA Scout CubeSat
NEA Scout CubeSat is a small solar sail–powered NASA spacecraft designed to perform close-up reconnaissance of a near-Earth asteroid.
-
E.
OMOTENASHI CubeSat
OMOTENASHI CubeSat is a small Japanese spacecraft designed by JAXA to demonstrate low-cost lunar landing and surface exploration technologies.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
CubeSat
ⓘ
deep space CubeSat ⓘ spacecraft ⓘ |
| abbreviation | EQUULEUS ⓘ |
| affiliation |
Institute of Space and Astronautical Science
ⓘ
surface form:
JAXA Institute of Space and Astronautical Science
University of Tokyo Intelligent Space Systems Laboratory ⓘ |
| attitudeControl | three-axis stabilized ⓘ |
| communicationBand |
S-band
ⓘ
X-band ⓘ |
| countryOfOrigin | Japan ⓘ |
| deploymentLocation | trans-lunar injection orbit of Artemis I ⓘ |
| developedBy |
Japan Aerospace Exploration Agency
ⓘ
surface form:
JAXA
University of Tokyo ⓘ |
| fullName | EQUilibriUm Lunar-Earth point 6U Spacecraft ⓘ |
| instrumentPurpose |
CLOTH supports optical navigation and attitude determination
ⓘ
DELPHINUS detects micrometeoroid and debris impacts ⓘ PHOENIX observes Earth’s plasmasphere in extreme ultraviolet ⓘ |
| launchConfiguration | secondary payload ⓘ |
| launchDate | 2022-11-16 ⓘ |
| launchedWithMission | Artemis I ⓘ |
| launchSite |
Kennedy Space Center Launch Complex 39B
ⓘ
surface form:
Kennedy Space Center LC-39B
|
| launchVehicle |
Space Launch System
ⓘ
surface form:
Space Launch System Block 1
|
| mass | approximately 14 kilograms ⓘ |
| missionStatus | operational ⓘ |
| missionType |
space science
ⓘ
technology demonstration ⓘ |
| operator |
Japan Aerospace Exploration Agency
ⓘ
surface form:
JAXA
|
| orbits | Earth–Moon system ⓘ |
| payload |
CLOTH camera for optical navigation
ⓘ
DELPHINUS dust detector ⓘ Extreme Ultraviolet Imager ⓘ
surface form:
PHOENIX extreme ultraviolet imager
|
| powerSource | solar panels ⓘ |
| primaryObjective |
demonstrate low-energy trajectory techniques in cislunar space
ⓘ
observe and study Earth’s plasmasphere from cislunar space ⓘ |
| program | Artemis I secondary payloads ⓘ |
| propulsionType |
low-thrust propulsion
ⓘ
water-resistojet propulsion ⓘ |
| scienceObjective |
characterize the structure of the Earth’s plasmasphere
ⓘ
monitor variations in the plasmasphere over time ⓘ |
| spacecraftBus | 6U CubeSat ⓘ |
| studies |
Earth’s plasmasphere dynamics
ⓘ
space plasma environment ⓘ |
| targetRegion |
Earth–Moon Lagrange region
ⓘ
cislunar space ⓘ |
| technologyDemonstrated |
low-energy cislunar transfers with CubeSats
ⓘ
water-based propulsion in deep space ⓘ |
| usesTrajectoryTechnique |
ballistic lunar transfer
ⓘ
low-energy trajectory ⓘ |
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: EQUULEUS CubeSat Description of subject: EQUULEUS CubeSat is a small Japanese-led spacecraft designed to demonstrate low-energy trajectory techniques and study Earth's plasmasphere from cislunar space.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.