Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI

Nothnagel, Axel

Abstract Thermal expansion of radio telescopes has long been recognized as an effect which cannot be neglected in geodetic and astrometric VLBI data analysis if millimeter accuracy is desired. In this article, the author documents the conventions which are being set by the International VLBI Service for Geodesy and Astrometry (IVS) for a consistent modelling of this effect in its routine product generation. For the largest telescopes, the annual cycle of thermal expansion may change the height of the VLBI reference point by as much as 20 mm. However, for telescopes which are used in present-day IVS operations, the variations rather range from 4 to 6 mm.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI

Nothnagel, Axel

Abstract Thermal expansion of radio telescopes has long been recognized as an effect which cannot be neglected in geodetic and astrometric VLBI data analysis if millimeter accuracy is desired. In this article, the author documents the conventions which are being set by the International VLBI Service for Geodesy and Astrometry (IVS) for a consistent modelling of this effect in its routine product generation. For the largest telescopes, the annual cycle of thermal expansion may change the height of the VLBI reference point by as much as 20 mm. However, for telescopes which are used in present-day IVS operations, the variations rather range from 4 to 6 mm.

Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI

Nothnagel, Axel

Abstract Thermal expansion of radio telescopes has long been recognized as an effect which cannot be neglected in geodetic and astrometric VLBI data analysis if millimeter accuracy is desired. In this article, the author documents the conventions which are being set by the International VLBI Service for Geodesy and Astrometry (IVS) for a consistent modelling of this effect in its routine product generation. For the largest telescopes, the annual cycle of thermal expansion may change the height of the VLBI reference point by as much as 20 mm. However, for telescopes which are used in present-day IVS operations, the variations rather range from 4 to 6 mm.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI

Contributors:

Nothnagel, Axel (author)

Published in:

Journal of Geodesy ; 83

Publication date:

2008

ISSN:

DOI:

https://doi.org/10.1007/s00190-008-0284-z

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Geodäsie , Geodynamik , Zeitschrift , Online-Ressource

Classification:

BKL: 38.73 Geodäsie
RVK: ELIB18 / ELIB41

Similar titles

Conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI

Nothnagel, Axel | Online Contents | 2008

The AuScope geodetic VLBI array

Lovell, J. E. J. / McCallum, J. N. / Reid, P. B. et al. | Online Contents | 2013

The AuScope geodetic VLBI array

Lovell, J. E. J. / McCallum, J. N. / Reid, P. B. et al. | Online Contents | 2013

Geodetic VLBI correlation in software

Tingay, Steven John / Alef, W. / Graham, D. et al. | Online Contents | 2009

Free access

Testing Special Relativity with Geodetic VLBI

Titov, Oleg / Krasná, Hana | TIBKAT | 2019