Warkworth Radio Telescope

Radio telescope in Warkworth Radio Astronomical Observatory, New Zealand

Not to be confused with Warkworth 30m Radio Telescope.

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Warkworth 12m Radio Telescope

Location(s)| Auckland Region, New Zealand
Coordinates| 36°25′59″S 174°39′45″E﻿ / ﻿36.43315°S 174.662383°E﻿ / -36.43315; 174.662383
Diameter| 12.1 m (39 ft 8 in)
Secondary diameter| 1.8 m (5 ft 11 in)

Location of Warkworth Radio Telescope

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[edit on Wikidata]

The Warkworth 12m Radio Telescope is a radio telescope at the Warkworth Radio Astronomical Observatory, located just south of Warkworth, New Zealand, about 50 km north of the Auckland CBD.[1] It is operated by the Institute of Radio Astronomy and Space Research of Auckland University of Technology and was constructed in 2008.[2][3][4]

## Technical information

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The 12m diameter antenna was designed and constructed by COBHAM Satcom.

The antenna is a fully steerable dual shaped Cassegrain with a main dish diameter of 12.1m and a secondary reflector diameter of 1.8m. The focal Length is 4.538m. The surface precision is 0.35mm (RMS) and the pointing accuracy is 18 inches. It operates in the L-Band, S-Band and X-Band with dual polarisation S and X-band feeds from COBHAM with room temperature receivers. The receiver systems cover 2.2 to 2.4 GHz at S-band and 8.1 to 9.1 GHz at X-band.

It is mounted alt-azimuth and has slewing rates of 5 deg/s in azimuth and 1.25 deg/s in elevation, and acceleration of 1.3 deg/s/s.

## Research activity

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In 2010 this dish was used for several very-long-baseline interferometry(VLBI) observations[5][6] in conjunction with the Australian Long Baseline Array.[7]

From 2011 it was a part of the International VLBI Service for Geodesy and Astrometry.[8] It is also co-located with a Land Information New Zealand and GNS Science 'PositioNZ' Global Navigation Satellite System[9] station, to assist in maintaining the International Terrestrial Reference Frame.

## See also

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* Warkworth Radio Astronomical Observatory
* Warkworth 30m Radio Telescope
* Radio astronomy
* Radio telescope
* List of radio telescopes

## References

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1. ^ Gulyaev, S., Natusch, T., "Introducing the AUT 12m Radio Telescope". Southern Stars, 47 (1), 2008.
2. ^ Gulyaev, S., Natusch, T., "New Zealand 12-m VLBI Station for Geodesy and Astronomy". IVS 2008 Annual Report, 2008.
3. ^ D., Dickey, 9 October 2008, Rodney Times,p.11, A first for NZ, New Zealand's first professional radio telescope was officially opened yesterday at Satellite Station Rd in Warkworth.
4. ^ D., Dickey, 16 October 2008,p.5, Rodney Times, Science fiction becomes reality, The Telecom satellite station south of Warkworth held the official opening of the new radio telescope on 8 October.
5. ^ Tzioumis et al, Evolution of the pc-scale structure of PKS 1934-638 revisited: first science with the ASKAP and New Zealand telescopes, The Astronomical Journal 140 (2010) 1506-1510
6. ^ Leonid Petrov; Chris Phillips; Tasso Tzioumis; Bruce Stansby; Cormac Reynolds; Hayley Bignall; Sergei Gulyaev; Tim Natusch; Neville Palmer (2010). "First geodetic observations using new VLBI stations ASKAP-29 and WARK12M". Publications of the Astronomical Society of Australia. 28 (2): 107–116\. arXiv:1012.4243. Bibcode:2011PASA...28..107P. doi:10.1071/AS10048.
7. ^ "VLBI and the Australian Long Baseline Array".
8. ^ "International VLBI Service for Geodesy and Astrometry (IVS)".
9. ^ "PositioNZ".

## External links

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* http://www.irasr.aut.ac.nz

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