space VLBI
E499557
Space VLBI is a radio astronomy technique that extends very long baseline interferometry by placing one or more antennas in space to achieve extremely high angular resolution beyond the limits of Earth-based arrays.
All labels observed (1)
| Label | Occurrences |
|---|---|
| space VLBI canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5150584 — 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: space VLBI Context triple: [Very Long Baseline Interferometry, variant, space VLBI]
-
A.
International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
-
B.
Very Long Baseline Interferometry
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.
-
C.
Very Long Baseline Array
The Very Long Baseline Array is a continent-spanning network of ten radio telescopes used for high-resolution astronomical observations through very long baseline interferometry.
-
D.
Ouna (VLBI satellite)
Ouna is a small Japanese VLBI (Very Long Baseline Interferometry) radio satellite used in the SELENE (Kaguya) lunar mission to conduct precise lunar gravity and geodesy measurements.
-
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: space VLBI Target entity description: Space VLBI is a radio astronomy technique that extends very long baseline interferometry by placing one or more antennas in space to achieve extremely high angular resolution beyond the limits of Earth-based arrays.
-
A.
International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
-
B.
Very Long Baseline Interferometry
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.
-
C.
Very Long Baseline Array
The Very Long Baseline Array is a continent-spanning network of ten radio telescopes used for high-resolution astronomical observations through very long baseline interferometry.
-
D.
Ouna (VLBI satellite)
Ouna is a small Japanese VLBI (Very Long Baseline Interferometry) radio satellite used in the SELENE (Kaguya) lunar mission to conduct precise lunar gravity and geodesy measurements.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
radio astronomy technique
ⓘ
very long baseline interferometry extension ⓘ |
| aimsFor | extremely high angular resolution ⓘ |
| appliesTo |
active galactic nuclei
ⓘ
compact radio sources ⓘ masers ⓘ pulsars ⓘ quasars ⓘ |
| comparedTo | ground VLBI ⓘ |
| dataProcessing |
VLBI correlator
ⓘ
fringe fitting ⓘ imaging and deconvolution ⓘ |
| enables |
baselines longer than Earth’s diameter
ⓘ
microarcsecond-scale imaging ⓘ |
| extends |
Earth-based VLBI baselines into space
ⓘ
very long baseline interferometry ⓘ |
| field | radio astronomy ⓘ |
| goal | resolve structure of the most compact radio sources in the universe ⓘ |
| hasChallenge |
complex correlation processing
ⓘ
limited downlink bandwidth ⓘ onboard data recording constraints ⓘ spacecraft pointing accuracy ⓘ |
| isLimitedBy |
available observing frequencies on spacecraft
ⓘ
launch and mission cost ⓘ spacecraft mission lifetime ⓘ |
| observes |
centimeter wavelengths
ⓘ
decimeter wavelengths ⓘ millimeter wavelengths ⓘ |
| offers | higher angular resolution than ground VLBI ⓘ |
| requires |
accurate time synchronization
ⓘ
correlation of space and ground data ⓘ global networks of ground radio telescopes ⓘ high-stability frequency standards ⓘ international collaboration ⓘ precise orbit determination ⓘ |
| supports |
astrometry of compact radio sources
ⓘ
measurements of brightness temperature limits ⓘ studies of jet formation in active galactic nuclei ⓘ tests of general relativity near compact objects ⓘ |
| uses |
antennas in space
ⓘ
ground-based radio telescopes ⓘ radio interferometry ⓘ |
| usesBaselineLengthsUpTo | hundreds of thousands of kilometers ⓘ |
| wasDemonstratedBy |
HALCA satellite
ⓘ
linked to:
HALCA radio astronomy satellite
RadioAstron mission ⓘ
linked to:
HALCA radio astronomy satellite
TDRSS Orbital VLBI experiment ⓘ VSOP mission ⓘ |
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: space VLBI Description of subject: Space VLBI is a radio astronomy technique that extends very long baseline interferometry by placing one or more antennas in space to achieve extremely high angular resolution beyond the limits of Earth-based arrays.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.