VLBA antenna at North Liberty, Iowa
E657530
The VLBA antenna at North Liberty, Iowa is one of the ten radio telescopes in the National Radio Astronomy Observatory’s Very Long Baseline Array, used for high-resolution astronomical observations through very long baseline interferometry.
All labels observed (1)
| Label | Occurrences |
|---|---|
| VLBA antenna at North Liberty, Iowa canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7272460 — 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: VLBA antenna at North Liberty, Iowa Context triple: [Very Long Baseline Array, hasAntenna, VLBA antenna at North Liberty, Iowa]
-
A.
VLBA antenna at Hancock, New Hampshire
The VLBA antenna at Hancock, New Hampshire is one of the ten radio telescopes in the Very Long Baseline Array network used for high-resolution astronomical observations via very long baseline interferometry.
-
B.
VLBA antenna at St. Croix, U.S. Virgin Islands
The VLBA antenna at St. Croix, U.S. Virgin Islands is one of the ten radio telescopes in the National Radio Astronomy Observatory’s Very Long Baseline Array, providing a crucial Caribbean baseline for high-resolution astronomical observations.
-
C.
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.
-
D.
Reber Radio Telescope (relocated)
The Reber Radio Telescope (relocated) is one of the earliest pioneering instruments in radio astronomy, now preserved at the Green Bank Observatory as a historic landmark of the field’s origins.
-
E.
85-foot Howard E. Tatel Radio Telescope
The 85-foot Howard E. Tatel Radio Telescope is a historic radio telescope at the National Radio Astronomy Observatory in Green Bank, West Virginia, notable for its role in early SETI research.
- 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: VLBA antenna at North Liberty, Iowa Target entity description: The VLBA antenna at North Liberty, Iowa is one of the ten radio telescopes in the National Radio Astronomy Observatory’s Very Long Baseline Array, used for high-resolution astronomical observations through very long baseline interferometry.
-
A.
VLBA antenna at Hancock, New Hampshire
The VLBA antenna at Hancock, New Hampshire is one of the ten radio telescopes in the Very Long Baseline Array network used for high-resolution astronomical observations via very long baseline interferometry.
-
B.
VLBA antenna at St. Croix, U.S. Virgin Islands
The VLBA antenna at St. Croix, U.S. Virgin Islands is one of the ten radio telescopes in the National Radio Astronomy Observatory’s Very Long Baseline Array, providing a crucial Caribbean baseline for high-resolution astronomical observations.
-
C.
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.
-
D.
Reber Radio Telescope (relocated)
The Reber Radio Telescope (relocated) is one of the earliest pioneering instruments in radio astronomy, now preserved at the Green Bank Observatory as a historic landmark of the field’s origins.
-
E.
85-foot Howard E. Tatel Radio Telescope
The 85-foot Howard E. Tatel Radio Telescope is a historic radio telescope at the National Radio Astronomy Observatory in Green Bank, West Virginia, notable for its role in early SETI research.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
VLBA station
ⓘ
radio telescope ⓘ |
| affiliation |
NRAO
ⓘ
linked to:
National Radio Astronomy Observatory
|
| arrayMembership | one of ten VLBA antennas ⓘ |
| coordinateRole | forms long baselines with other VLBA antennas ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dataUsedBy | astronomers worldwide ⓘ |
| fundedBy | National Science Foundation ⓘ |
| locatedIn |
North Liberty, Iowa
ⓘ
United States ⓘ
linked to:
United States of America
|
| network |
VLBA
ⓘ
linked to:
VLBA correlator facility
|
| numberOfAntennasInArray | 10 ⓘ |
| observes |
hydroxyl masers
ⓘ
methanol masers ⓘ neutral hydrogen 21-cm line ⓘ radio continuum emission ⓘ radio emission from active galactic nuclei ⓘ radio emission from compact objects ⓘ radio emission from quasars ⓘ spectral line emission ⓘ water masers ⓘ |
| operator | National Radio Astronomy Observatory ⓘ |
| partOf |
Very Long Baseline Array
ⓘ
Very Long Baseline Interferometry network ⓘ
linked to:
Very Long Baseline Array
|
| scienceFocus |
Earth orientation measurements
ⓘ
active galactic nuclei ⓘ astrometry ⓘ extragalactic astronomy ⓘ galactic structure studies ⓘ geodesy ⓘ maser observations ⓘ pulsar observations ⓘ quasar observations ⓘ radio jets ⓘ reference frame definition ⓘ |
| scientificImpact |
contributes to geodetic VLBI solutions
ⓘ
contributes to milliarcsecond angular resolution imaging ⓘ contributes to precision astrometric measurements ⓘ |
| state | Iowa ⓘ |
| technology |
interferometry
ⓘ
very long baseline interferometry ⓘ |
| telescopeType | parabolic dish radio telescope ⓘ |
| usedFor |
high-resolution astronomical observations
ⓘ
radio astronomy ⓘ very long baseline interferometry ⓘ |
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: VLBA antenna at North Liberty, Iowa Description of subject: The VLBA antenna at North Liberty, Iowa is one of the ten radio telescopes in the National Radio Astronomy Observatory’s Very Long Baseline Array, used for high-resolution astronomical observations through very long baseline interferometry.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.