CFH12K mosaic camera (reused as PTF camera)
E1031920
The CFH12K mosaic camera, repurposed for the Palomar Transient Factory, is a wide-field astronomical imaging instrument composed of multiple CCDs designed for large-area sky surveys and transient detection.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CFH12K mosaic camera (reused as PTF camera) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13300636 — 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: CFH12K mosaic camera (reused as PTF camera) Context triple: [Palomar Transient Factory, usesInstrument, CFH12K mosaic camera (reused as PTF camera)]
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A.
Wide Field and Planetary Camera 2
Wide Field and Planetary Camera 2 was a key imaging instrument on the Hubble Space Telescope that captured many of its most iconic and scientifically important space photographs from the mid-1990s to the late 2000s.
-
B.
Panchromatic Camera 1
Panchromatic Camera 1 is a high-resolution black-and-white imaging instrument aboard the Indian IRS-P5 (Cartosat-1) Earth observation satellite, used primarily for detailed cartographic and terrain mapping applications.
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C.
Panchromatic Camera 2
Panchromatic Camera 2 is a high-resolution black-and-white imaging instrument aboard the Indian remote sensing satellite IRS-P5 (Cartosat-1), used primarily for detailed cartographic and Earth observation applications.
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D.
MegaCam
MegaCam is a wide-field optical imaging camera used for deep-sky astronomical surveys on the Canada–France–Hawaii Telescope.
-
E.
NSFCAM2 infrared camera
The NSFCAM2 infrared camera is a high-sensitivity imaging instrument used at NASA’s Infrared Telescope Facility to capture detailed observations of astronomical objects in the infrared spectrum.
- 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: CFH12K mosaic camera (reused as PTF camera) Target entity description: The CFH12K mosaic camera, repurposed for the Palomar Transient Factory, is a wide-field astronomical imaging instrument composed of multiple CCDs designed for large-area sky surveys and transient detection.
-
A.
Wide Field and Planetary Camera 2
Wide Field and Planetary Camera 2 was a key imaging instrument on the Hubble Space Telescope that captured many of its most iconic and scientifically important space photographs from the mid-1990s to the late 2000s.
-
B.
Panchromatic Camera 1
Panchromatic Camera 1 is a high-resolution black-and-white imaging instrument aboard the Indian IRS-P5 (Cartosat-1) Earth observation satellite, used primarily for detailed cartographic and terrain mapping applications.
-
C.
Panchromatic Camera 2
Panchromatic Camera 2 is a high-resolution black-and-white imaging instrument aboard the Indian remote sensing satellite IRS-P5 (Cartosat-1), used primarily for detailed cartographic and Earth observation applications.
-
D.
MegaCam
MegaCam is a wide-field optical imaging camera used for deep-sky astronomical surveys on the Canada–France–Hawaii Telescope.
-
E.
NSFCAM2 infrared camera
The NSFCAM2 infrared camera is a high-sensitivity imaging instrument used at NASA’s Infrared Telescope Facility to capture detailed observations of astronomical objects in the infrared spectrum.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical imaging camera
ⓘ
telescope instrument ⓘ wide-field mosaic CCD camera ⓘ |
| associatedWithField |
observational astronomy
ⓘ
time-domain astrophysics ⓘ |
| associatedWithProject |
Palomar Transient Factory survey project
ⓘ
linked to:
Palomar Transient Factory
|
| dataProduct |
time-series imaging data
ⓘ
wide-field CCD images ⓘ |
| designedFor |
imaging large sky areas efficiently
ⓘ
optical wavelength observations ⓘ survey astronomy ⓘ |
| enables |
automated transient search pipelines
ⓘ
large-scale sky monitoring ⓘ |
| hasAlias |
CFH12K PTF camera
ⓘ
PTF camera ⓘ |
| hasFeature |
large-format focal plane
ⓘ
optical imaging capability ⓘ pixelated CCD array ⓘ wide field of view ⓘ |
| hasPart |
mosaic of CCDs
ⓘ
multiple CCD detectors ⓘ |
| locatedAt | telescope prime focus ⓘ |
| mountedOn |
Palomar 48-inch Samuel Oschin Telescope
ⓘ
linked to:
Palomar 48-inch Schmidt Telescope
|
| observes |
Galactic plane regions
ⓘ
extragalactic fields ⓘ night sky ⓘ |
| optimizedFor |
survey speed
ⓘ
wide areal coverage per exposure ⓘ |
| repurposedAs | PTF camera ⓘ |
| technology | charge-coupled device ⓘ |
| usedAt | Palomar Observatory ⓘ |
| usedFor |
Palomar Transient Factory survey
ⓘ
linked to:
Palomar Transient Factory
asteroid and near-Earth object detection ⓘ large-area sky surveys ⓘ search for optical transients ⓘ supernova discovery ⓘ time-domain astronomy ⓘ transient detection ⓘ variable star detection ⓘ wide-field astronomical imaging ⓘ |
| usedIn | Palomar Transient Factory ⓘ |
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: CFH12K mosaic camera (reused as PTF camera) Description of subject: The CFH12K mosaic camera, repurposed for the Palomar Transient Factory, is a wide-field astronomical imaging instrument composed of multiple CCDs designed for large-area sky surveys and transient detection.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.