Hitomi (ASTRO-H)
E384066
Hitomi (ASTRO-H) was a Japanese X-ray astronomy satellite designed to study high-energy phenomena in the universe, such as black holes, galaxy clusters, and supernova remnants.
All labels observed (3)
| Label | Occurrences |
|---|---|
| ASTRO-H | 1 |
| Astro series of Japanese X-ray astronomy satellites | 1 |
| Hitomi (ASTRO-H) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3737740 — 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: Hitomi (ASTRO-H) Context triple: [High Energy Astrophysics Science Archive Research Center, hostMissionArchive, Hitomi (ASTRO-H)]
-
A.
Spektr-RG observatory
The Spektr-RG observatory is a Russian-German space telescope mission designed to conduct an all-sky X-ray survey, particularly focused on studying galaxy clusters, black holes, and other high-energy cosmic phenomena.
-
B.
NuSTAR Nuclear Spectroscopic Telescope Array
NuSTAR (Nuclear Spectroscopic Telescope Array) is a space-based X-ray observatory that uses high-energy focusing optics to study black holes, neutron stars, supernova remnants, and other energetic cosmic phenomena.
-
C.
Chandra X-ray Observatory
The Chandra X-ray Observatory is a space-based telescope that observes high-energy X-ray emissions from hot regions of the universe, such as exploded stars, galaxy clusters, and matter around black holes.
-
D.
Burst Alert Telescope
The Burst Alert Telescope is a high-energy gamma-ray detector on the Neil Gehrels Swift Observatory designed to rapidly locate and trigger follow-up observations of cosmic gamma-ray bursts.
-
E.
IXPE X-ray Polarimetry Explorer
IXPE X-ray Polarimetry Explorer is a NASA space observatory designed to measure the polarization of cosmic X-rays to study extreme astrophysical environments such as black holes, neutron stars, and supernova remnants.
- 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: Hitomi (ASTRO-H) Target entity description: Hitomi (ASTRO-H) was a Japanese X-ray astronomy satellite designed to study high-energy phenomena in the universe, such as black holes, galaxy clusters, and supernova remnants.
-
A.
Spektr-RG observatory
The Spektr-RG observatory is a Russian-German space telescope mission designed to conduct an all-sky X-ray survey, particularly focused on studying galaxy clusters, black holes, and other high-energy cosmic phenomena.
-
B.
NuSTAR Nuclear Spectroscopic Telescope Array
NuSTAR (Nuclear Spectroscopic Telescope Array) is a space-based X-ray observatory that uses high-energy focusing optics to study black holes, neutron stars, supernova remnants, and other energetic cosmic phenomena.
-
C.
Chandra X-ray Observatory
The Chandra X-ray Observatory is a space-based telescope that observes high-energy X-ray emissions from hot regions of the universe, such as exploded stars, galaxy clusters, and matter around black holes.
-
D.
Burst Alert Telescope
The Burst Alert Telescope is a high-energy gamma-ray detector on the Neil Gehrels Swift Observatory designed to rapidly locate and trigger follow-up observations of cosmic gamma-ray bursts.
-
E.
IXPE X-ray Polarimetry Explorer
IXPE X-ray Polarimetry Explorer is a NASA space observatory designed to measure the polarization of cosmic X-rays to study extreme astrophysical environments such as black holes, neutron stars, and supernova remnants.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese spacecraft
ⓘ
X-ray astronomy satellite ⓘ artificial satellite ⓘ space telescope ⓘ |
| abbreviation |
Hitomi (ASTRO-H)
self-linksurface differs
ⓘ
surface form:
ASTRO-H
|
| alsoKnownAs | Hitomi ⓘ |
| cosparId | 2016-012A ⓘ |
| countryOfOrigin | Japan ⓘ |
| demonstratedCapability | high-resolution X-ray spectroscopy ⓘ |
| developedBy |
Japan Aerospace Exploration Agency
ⓘ
surface form:
JAXA
|
| developedInCollaborationWith |
Canadian Space Agency
ⓘ
ESA ⓘ NASA ⓘ |
| endOfMission | 2016-04-28 ⓘ |
| equippedWith |
Hard X-ray Detector
ⓘ
surface form:
Hard X-ray Imager
Soft Gamma-ray Detector ⓘ Soft X-ray Imager ⓘ X-ray Spectrometer ⓘ
surface form:
Soft X-ray Spectrometer
|
| failureCause |
attitude control anomaly
ⓘ
spacecraft breakup ⓘ |
| failureDate | 2016-03-26 ⓘ |
| inclination | 31 degrees ⓘ |
| launchCountry | Japan ⓘ |
| launchDate | 2016-02-17 ⓘ |
| launchSite | Tanegashima Space Center ⓘ |
| launchVehicle |
H-IIA launch vehicle
ⓘ
surface form:
H-IIA 202
|
| missionType |
X-ray astronomy
ⓘ
astrophysics observatory ⓘ |
| nameMeaning | pupil of the eye in Japanese ⓘ |
| notableResult | high-resolution X-ray spectroscopy of the Perseus cluster ⓘ |
| operator | Japan Aerospace Exploration Agency ⓘ |
| orbitType | low Earth orbit ⓘ |
| predecessor | Suzaku (ASTRO-E2) ⓘ |
| primaryObjective | study high-energy phenomena in the universe ⓘ |
| program | JAXA ASTRO series ⓘ |
| researchField |
X-ray astronomy
ⓘ
high-energy astrophysics ⓘ |
| spaceAgency |
Japan Aerospace Exploration Agency
ⓘ
surface form:
JAXA
|
| spectralRange |
hard X-ray band
ⓘ
soft X-ray band ⓘ soft gamma-ray band ⓘ |
| status | mission failed ⓘ |
| studies |
active galactic nuclei
ⓘ
black holes ⓘ cosmic plasmas ⓘ galaxy clusters ⓘ large-scale structure of the universe ⓘ supernova remnants ⓘ |
| successor | XRISM ⓘ |
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: Hitomi (ASTRO-H) Description of subject: Hitomi (ASTRO-H) was a Japanese X-ray astronomy satellite designed to study high-energy phenomena in the universe, such as black holes, galaxy clusters, and supernova remnants.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Astro series of Japanese X-ray astronomy satellites
this entity surface form:
ASTRO-H