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On More than Two De...
On More than Two Decades of Celestial Reference Frame VLBI Observations in the Deep South: IVS-CRDS (1995 - 2021)
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- Weston, S. (författare)
- Auckland University of Technology
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De Witt, A. (författare)
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- Krásná, Hana (författare)
- Technische Universität Wien,Vienna University of Technology
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- le Bail, Karine, 1977 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,NASA Goddard Space Flight Center
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Hardin, Sara (författare)
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Gordon, David (författare)
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- Fengchun, Shu (författare)
- Shanghai Astronomical Observatory. Chinese Academy of Sciences,Shanghai Astronomical Observatory Chinese Academy of Sciences
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- Lee Fey, Alan, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Schartner, Matthias (författare)
- Eidgenössische Technische Hochschule Zürich (ETH),Swiss Federal Institute of Technology in Zürich (ETH)
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Basu, Sayan (författare)
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- Titov, O. (författare)
- Geoscience Australia
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- Behrend, Dirk (författare)
- NASA Goddard Space Flight Center
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- Jacobs, Christopher S. (författare)
- California Institute of Technology (Caltech)
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- Hankey, Warren (författare)
- University of Tasmania
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- Salguero, Federico (författare)
- Consejo Nacional de Investigaciones Cientificas y Tecnicas
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- Reynolds, J.E. (författare)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Publications Astronomical Society of Australia. - 1448-6083 .- 1323-3580. ; 40
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The International VLBI Service for Geodesy & Astrometry (IVS) regularly provides high-quality data to produce Earth Orientation Parameters (EOP), and for the maintenance and realization of the International Terrestrial and Celestial Reference Frames, ITRF and ICRF. The first iteration of the celestial reference frame (CRF) at radio wavelengths, the ICRF1, was adopted by the International Astronomical Union (IAU) in 1997 to replace the FK5 optical frame. Soon after, the IVS began official operations and in 2009 there was a significant increase in data sufficient to warrant a second iteration of the CRF, ICRF2. The most recent ICRF3, was adopted by the IAU in 2018. However, due to the geographic distribution of observing stations being concentrated in the Northern hemisphere, CRFs are generally weaker in the South due to there being fewer Southern Hemisphere observations. To increase the Southern Hemisphere observations, and the density, precision of the sources, a series of deep South observing sessions was initiated in 1995. This initiative in 2004 became the IVS Celestial Reference Frame Deep South (IVS-CRDS) observing program. This paper covers the evolution of the CRDS observing program for the period 1995 to 2021, details the data products and results, and concludes with a summary of upcoming improvements to this ongoing project.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- IVS
- Keywords
- Geodesy
- VLBI
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- art (ämneskategori)
- ref (ämneskategori)
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- Av författaren/redakt...
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Weston, S.
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De Witt, A.
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Krásná, Hana
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le Bail, Karine, ...
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Hardin, Sara
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Gordon, David
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visa fler...
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Fengchun, Shu
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Lee Fey, Alan, 1 ...
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Schartner, Matth ...
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Basu, Sayan
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Titov, O.
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Behrend, Dirk
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Jacobs, Christop ...
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Hankey, Warren
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Salguero, Federi ...
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Reynolds, J.E.
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visa färre...
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