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Very Long Baseline Array

(radio interferometer stretching 8000 km)

The Very Long Baseline Array (VLBA) is an interferometer consisting of 10 25 meter radio telescopes spread across North America from Hawaii to the Virgin Islands supporting a maximum baseline of 5300 miles. Its control room is in Socorro, New Mexico. It observes wavelengths from 28 cm to 3 mm in eight bands plus two narrow longer-wavelength bands.

It is also used with additional radio telescopes for longer baselines, known as the HSA (for High-Sensitivity Array). This gives them angular resolutions for the shorter wavelengths as small as fractions of a milliarcsecond.

Further reading:
3mm100GHz413μeVendVery Long Baseline Array
28cm1.1GHz4.5μeVbeginVery Long Baseline Array

Referenced by pages:
angular resolution
Gould's Belt Distances Survey (GOBELINS)
Mauna Kea
Mauna Kea Observatories (MKO)
National Radio Astronomy Observatory (NRAO)
Owens Valley Radio Observatory (OVRO)
very-long-baseline interferometry (VLBI)