High Speed Photometer
E701258
The High Speed Photometer was an early Hubble Space Telescope instrument designed to measure rapid variations in the brightness of astronomical objects with high time resolution.
All labels observed (1)
| Label | Occurrences |
|---|---|
| High Speed Photometer canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7887472 — 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: High Speed Photometer Context triple: [COSTAR, replacedInstrument, High Speed Photometer]
-
A.
Photon Spectrometer
The Photon Spectrometer is a specialized detector subsystem of the ALICE experiment at CERN designed to precisely measure and analyze high-energy photons produced in heavy-ion collisions.
-
B.
Advanced CCD Imaging Spectrometer
The Advanced CCD Imaging Spectrometer is a high-resolution X-ray imaging and spectroscopic camera used on NASA’s Chandra X-ray Observatory to study high-energy astrophysical phenomena.
-
C.
Photometria
Photometria is an influential 1760 treatise by Johann Heinrich Lambert that laid the foundations of photometry by quantitatively describing the measurement and behavior of light.
-
D.
High Energy Stereoscopic System
The High Energy Stereoscopic System (H.E.S.S.) is a ground-based array of imaging atmospheric Cherenkov telescopes in Namibia used to study very-high-energy gamma rays from cosmic sources such as supernova remnants, pulsar wind nebulae, and active galactic nuclei.
-
E.
Grille spectrometer
The Grille spectrometer is a spaceborne infrared spectrometer designed to study the composition and structure of planetary and Earth atmospheres by analyzing their emitted and absorbed radiation.
- 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: High Speed Photometer Target entity description: The High Speed Photometer was an early Hubble Space Telescope instrument designed to measure rapid variations in the brightness of astronomical objects with high time resolution.
-
A.
Photon Spectrometer
The Photon Spectrometer is a specialized detector subsystem of the ALICE experiment at CERN designed to precisely measure and analyze high-energy photons produced in heavy-ion collisions.
-
B.
Advanced CCD Imaging Spectrometer
The Advanced CCD Imaging Spectrometer is a high-resolution X-ray imaging and spectroscopic camera used on NASA’s Chandra X-ray Observatory to study high-energy astrophysical phenomena.
-
C.
Photometria
Photometria is an influential 1760 treatise by Johann Heinrich Lambert that laid the foundations of photometry by quantitatively describing the measurement and behavior of light.
-
D.
High Energy Stereoscopic System
The High Energy Stereoscopic System (H.E.S.S.) is a ground-based array of imaging atmospheric Cherenkov telescopes in Namibia used to study very-high-energy gamma rays from cosmic sources such as supernova remnants, pulsar wind nebulae, and active galactic nuclei.
-
E.
Grille spectrometer
The Grille spectrometer is a spaceborne infrared spectrometer designed to study the composition and structure of planetary and Earth atmospheres by analyzing their emitted and absorbed radiation.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Hubble Space Telescope instrument
ⓘ
photometer ⓘ |
| abbreviation | HSP NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| dataType |
light curves
ⓘ
time‑tagged photon counts ⓘ |
| designedFor |
high time resolution photometry
ⓘ
measuring rapid brightness variations of astronomical objects ⓘ ultraviolet photometry ⓘ visible light photometry ⓘ |
| developedBy |
NASA
NERFINISHED
ⓘ
University of Wisconsin–Madison NERFINISHED ⓘ |
| feature |
multiple photometric apertures
ⓘ
onboard filters ⓘ polarizing optics ⓘ |
| hasCapability |
high speed photon counting
ⓘ
microsecond time resolution ⓘ multi‑channel photometry ⓘ polarimetry ⓘ |
| hasSuccessor |
Advanced Camera for Surveys
NERFINISHED
ⓘ
Space Telescope Imaging Spectrograph NERFINISHED ⓘ |
| launchDate | 1990-04-24 ⓘ |
| launchVehicle | Space Shuttle Discovery STS-31 NERFINISHED ⓘ |
| locatedAt | Hubble Space Telescope focal plane NERFINISHED ⓘ |
| mass | approximately 125 kilograms ⓘ |
| mountedIn | axial instrument bay of Hubble Space Telescope ⓘ |
| observatory | low Earth orbit via Hubble Space Telescope ⓘ |
| operatedBy | Space Telescope Science Institute NERFINISHED ⓘ |
| operatedInBand |
ultraviolet
ⓘ
visible ⓘ |
| operationalPeriodEnd | 1993 ⓘ |
| operationalPeriodStart | 1990 ⓘ |
| partOf | Hubble Space Telescope NERFINISHED ⓘ |
| removalDate | 1993-12 ⓘ |
| removedByMission | STS-61 NERFINISHED ⓘ |
| replacedBy | Corrective Optics Space Telescope Axial Replacement NERFINISHED ⓘ |
| scientificGoal |
measure precise optical and UV timing of compact objects
ⓘ
study short‑timescale variability in astrophysical sources ⓘ |
| status | decommissioned ⓘ |
| usedForObservationOf |
active galactic nuclei
ⓘ
cataclysmic variable stars ⓘ eclipsing binaries ⓘ pulsars ⓘ white dwarfs ⓘ |
| usedInProgram | Hubble Space Telescope science program NERFINISHED ⓘ |
| wasOnBoardDuring | Hubble Space Telescope launch ⓘ |
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: High Speed Photometer Description of subject: The High Speed Photometer was an early Hubble Space Telescope instrument designed to measure rapid variations in the brightness of astronomical objects with high time resolution.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Corrective Optics Space Telescope Axial Replacement (COSTAR)
→
replacedInstrument
→
High Speed Photometer
ⓘ
subject surface form:
COSTAR