X-ray Timing Instrument
E383844
The X-ray Timing Instrument is a high-precision detector system on NASA’s NICER mission designed to measure rapid X-ray brightness variations from neutron stars and other compact objects.
All labels observed (1)
| Label | Occurrences |
|---|---|
| X-ray Timing Instrument canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3729312 — 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: X-ray Timing Instrument Context triple: [NICER, hasComponent, X-ray Timing Instrument]
-
A.
X-ray Spectrometer
The X-ray Spectrometer is a scientific instrument designed to analyze the elemental composition of celestial bodies by measuring the X-ray emissions from their surfaces.
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B.
Gamma-ray Burst Monitor
The Gamma-ray Burst Monitor is an instrument aboard NASA’s Fermi space telescope designed to detect and study gamma-ray bursts across a wide field of view.
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C.
X-Ray Telescope
The X-Ray Telescope is a space-based instrument designed to detect and image high-energy X-ray emissions from cosmic sources such as black holes, neutron stars, and gamma-ray bursts.
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D.
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.
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E.
Solar X-ray Monitor
The Solar X-ray Monitor is a scientific instrument aboard India’s Chandrayaan-2 lunar orbiter designed to observe and measure solar X-ray emissions for studying the Sun’s activity and its effects on the Moon.
- 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: X-ray Timing Instrument Target entity description: The X-ray Timing Instrument is a high-precision detector system on NASA’s NICER mission designed to measure rapid X-ray brightness variations from neutron stars and other compact objects.
-
A.
X-ray Spectrometer
The X-ray Spectrometer is a scientific instrument designed to analyze the elemental composition of celestial bodies by measuring the X-ray emissions from their surfaces.
-
B.
Gamma-ray Burst Monitor
The Gamma-ray Burst Monitor is an instrument aboard NASA’s Fermi space telescope designed to detect and study gamma-ray bursts across a wide field of view.
-
C.
X-Ray Telescope
The X-Ray Telescope is a space-based instrument designed to detect and image high-energy X-ray emissions from cosmic sources such as black holes, neutron stars, and gamma-ray bursts.
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D.
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.
-
E.
Solar X-ray Monitor
The Solar X-ray Monitor is a scientific instrument aboard India’s Chandrayaan-2 lunar orbiter designed to observe and measure solar X-ray emissions for studying the Sun’s activity and its effects on the Moon.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
X-ray detector system
ⓘ
space-based scientific instrument ⓘ |
| abbreviation | XTI ⓘ |
| collaboration | US and international partners ⓘ |
| dataProduct |
X-ray spectra
ⓘ
energy-resolved light curves ⓘ time-resolved X-ray photon event lists ⓘ |
| deployedOn | ISS Japanese Experiment Module Exposed Facility ⓘ |
| developedBy |
Goddard Space Flight Center
ⓘ
surface form:
NASA Goddard Space Flight Center
|
| enablesMeasurement |
pulsation profiles of millisecond pulsars
ⓘ
quasi-periodic oscillations in X-ray binaries ⓘ spin and orbital parameters of compact objects ⓘ thermonuclear X-ray bursts ⓘ |
| hasCapability |
high-precision X-ray timing
ⓘ
spectroscopy in soft X-ray band ⓘ |
| hasComponent |
X-ray concentrator array
ⓘ
detector electronics ⓘ focal plane module ⓘ timing electronics ⓘ |
| hasDesignFeature |
modular detector array
ⓘ
non-imaging concentrator optics ⓘ |
| hasFieldOfView | narrow field of view ⓘ |
| hasTimeResolution |
sub-microsecond timing precision
ⓘ
~100 nanosecond event time tagging ⓘ |
| launchDate | 2017-06-03 ⓘ |
| launchVehicle |
SpaceX CRS-11
ⓘ
surface form:
SpaceX Falcon 9 CRS-11
|
| locatedOn | International Space Station ⓘ |
| mission |
NICER Neutron star Interior Composition Explorer
ⓘ
surface form:
NICER
|
| mountedOn | ISS ExPRESS Logistics Carrier 2 ⓘ |
| observesWavelengthRange |
0.2–12 keV
ⓘ
soft X-rays ⓘ |
| operator | NASA ⓘ |
| partOf |
NICER Neutron star Interior Composition Explorer
ⓘ
surface form:
NICER mission
NICER Neutron star Interior Composition Explorer ⓘ
surface form:
Neutron star Interior Composition Explorer
|
| primaryScienceTarget |
accreting neutron stars
ⓘ
black hole binaries ⓘ millisecond pulsars ⓘ neutron stars ⓘ other compact objects ⓘ |
| relatedTo | Station Explorer for X-ray Timing and Navigation Technology ⓘ |
| scienceMode | event-by-event photon time tagging ⓘ |
| scientificGoal |
constrain neutron star equation of state
ⓘ
measure rapid X-ray brightness variations ⓘ study strong gravity near compact objects ⓘ |
| supportsExperiment |
NICER X-ray timing studies
ⓘ
neutron star mass-radius measurements ⓘ pulsar-based navigation demonstrations ⓘ |
| usesDetectorType |
X-ray concentrator optics
ⓘ
silicon drift detector ⓘ |
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: X-ray Timing Instrument Description of subject: The X-ray Timing Instrument is a high-precision detector system on NASA’s NICER mission designed to measure rapid X-ray brightness variations from neutron stars and other compact objects.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
NICER