Very Long Baseline Interferometry
E116182
Very Long Baseline Interferometry is a radio astronomy technique that combines signals from widely separated antennas to achieve extremely high angular resolution and precisely measure geodetic and astronomical parameters.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Very Long Baseline Interferometry canonical | 19 |
| VLBI | 5 |
| Very Long Baseline Interferometry (VLBI) arrays | 1 |
| Very Long Baseline Interferometry network | 1 |
| Very Long Baseline Interferometry networks | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T982947 — 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: Very Long Baseline Interferometry Context triple: [Earth rotation, isMeasuredBy, Very Long Baseline Interferometry]
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A.
Very Large Array (VLA) Radio Telescope
The Very Large Array (VLA) Radio Telescope is a world-renowned radio astronomy observatory in New Mexico, consisting of 27 large dish antennas arranged in a Y-shaped configuration to study distant cosmic phenomena.
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B.
Submillimeter Array
The Submillimeter Array is a radio interferometer of eight 6-meter telescopes that observes the universe at submillimeter wavelengths, enabling high-resolution studies of cold gas, dust, and star-forming regions in space.
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C.
Atacama Large Millimeter/submillimeter Array
The Atacama Large Millimeter/submillimeter Array is a powerful astronomical observatory composed of dozens of radio antennas that study the cold universe—such as star and planet formation—by observing millimeter and submillimeter wavelengths.
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D.
Advanced Camera for Surveys
The Advanced Camera for Surveys is a high-resolution imaging instrument on the Hubble Space Telescope designed to capture detailed observations of distant galaxies, galaxy clusters, and other faint astronomical objects.
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E.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
- 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: Very Long Baseline Interferometry Target entity description: Very Long Baseline Interferometry is a radio astronomy technique that combines signals from widely separated antennas to achieve extremely high angular resolution and precisely measure geodetic and astronomical parameters.
-
A.
Very Large Array (VLA) Radio Telescope
The Very Large Array (VLA) Radio Telescope is a world-renowned radio astronomy observatory in New Mexico, consisting of 27 large dish antennas arranged in a Y-shaped configuration to study distant cosmic phenomena.
-
B.
Submillimeter Array
The Submillimeter Array is a radio interferometer of eight 6-meter telescopes that observes the universe at submillimeter wavelengths, enabling high-resolution studies of cold gas, dust, and star-forming regions in space.
-
C.
Atacama Large Millimeter/submillimeter Array
The Atacama Large Millimeter/submillimeter Array is a powerful astronomical observatory composed of dozens of radio antennas that study the cold universe—such as star and planet formation—by observing millimeter and submillimeter wavelengths.
-
D.
Advanced Camera for Surveys
The Advanced Camera for Surveys is a high-resolution imaging instrument on the Hubble Space Telescope designed to capture detailed observations of distant galaxies, galaxy clusters, and other faint astronomical objects.
-
E.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
geodetic measurement technique
ⓘ
interferometric technique ⓘ radio astronomy technique ⓘ |
| abbreviation |
VLBI
ⓘ
linked to:
Very Long Baseline Interferometry
|
| aimsAt |
achieving very high angular resolution
ⓘ
precise astronomical measurements ⓘ precise geodetic measurements ⓘ |
| appliedIn |
astrometry
ⓘ
geodesy ⓘ radio astronomy imaging ⓘ spacecraft tracking ⓘ tests of general relativity ⓘ |
| basedOn |
aperture synthesis
ⓘ
interference of radio waves ⓘ |
| canUse |
ground-based antennas
ⓘ
space-based antennas ⓘ |
| characterizedBy |
independent local oscillators at each antenna
ⓘ
post-observation data correlation ⓘ very long baselines ⓘ |
| contributesTo |
Earth rotation monitoring
ⓘ
definition of time scales ⓘ nutation determination ⓘ plate tectonics studies ⓘ precession models ⓘ |
| developedFrom | radio interferometry ⓘ |
| enables |
International Celestial Reference Frame realization
ⓘ
International Terrestrial Reference Frame realization ⓘ high-precision reference frames ⓘ microarcsecond angular resolution in some bands ⓘ milliarcsecond angular resolution ⓘ |
| measures |
Earth orientation parameters
ⓘ
baseline lengths between antennas ⓘ parallax of astronomical objects ⓘ proper motions of astronomical objects ⓘ quasar positions ⓘ source positions ⓘ tectonic plate motion ⓘ time delays between received signals ⓘ |
| requires |
highly stable frequency standards
ⓘ
hydrogen maser clocks ⓘ offline correlation processing ⓘ precise time synchronization ⓘ recording of wide-band radio signals ⓘ |
| standardizedBy | International VLBI Service for Geodesy and Astrometry ⓘ |
| uses |
correlation of radio signals
ⓘ
extragalactic radio sources ⓘ interferometry ⓘ quasars as reference sources ⓘ widely separated radio telescopes ⓘ |
| variant | space VLBI ⓘ |
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: Very Long Baseline Interferometry Description of subject: Very Long Baseline Interferometry is a radio astronomy technique that combines signals from widely separated antennas to achieve extremely high angular resolution and precisely measure geodetic and astronomical parameters.
Referenced by (27)
Full triples — surface form annotated when it differs from this entity's canonical label.
National Radio Astronomy Observatory
→
participatesIn
→
Very Long Baseline Interferometry networks
ⓘ
linked to: Very Long Baseline Interferometry
subject linked to:
United States Naval Observatory, Washington, D.C.
linked to: Very Long Baseline Interferometry
linked to: Very Long Baseline Interferometry
linked to: Very Long Baseline Interferometry
linked to: Very Long Baseline Interferometry
International VLBI Service for Geodesy and Astrometry
→
usesTechnique
→
Very Long Baseline Interferometry
ⓘ
linked to: Very Long Baseline Interferometry
subject linked to:
Ouna (VLBI satellite)
subject linked to:
Ouna (VLBI satellite)
linked to: Very Long Baseline Interferometry
linked to: Very Long Baseline Interferometry
subject linked to:
global geodetic observing system