Realization of Celestial Reference Frames using the Allan Variance Classification
International audience Recently te{GattanoLambertLeBail2018}, a new classification of VLBI radio sources was built on the basis of their astrometric stability revealed by the use of the Allan standard deviation. In such a classification, sources are divided into three groups depending on the nature...
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ftccsdartic:oai:HAL:hal-02278176v1 2023-05-15T18:29:48+02:00 Realization of Celestial Reference Frames using the Allan Variance Classification Gattano, C. Charlot, P. M2A 2019 Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) svalbard, Norway 2018-06-03 https://hal.archives-ouvertes.fr/hal-02278176 en eng HAL CCSD hal-02278176 https://hal.archives-ouvertes.fr/hal-02278176 BIBCODE: 2019ivs.conf.184G International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings: "Global Geodesy and the Role of VGOS - Fundamental to Sustainable Development", Eds. Kyla L. Armstrong, Karen D. Baver, Dirk Behrend, NASA/CP-2019-219039, p. 184-188 https://hal.archives-ouvertes.fr/hal-02278176 International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings: "Global Geodesy and the Role of VGOS - Fundamental to Sustainable Development", Eds. Kyla L. Armstrong, Karen D. Baver, Dirk Behrend, NASA/CP-2019-219039, p. 184-188, Jun 2018, svalbard, Norway [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] info:eu-repo/semantics/conferenceObject Conference papers 2018 ftccsdartic 2021-12-25T23:46:44Z International audience Recently te{GattanoLambertLeBail2018}, a new classification of VLBI radio sources was built on the basis of their astrometric stability revealed by the use of the Allan standard deviation. In such a classification, sources are divided into three groups depending on the nature of the noise content in the astrometric time series. The global level of noise then orders sources within each group. In this proceedings, we present several strategies on the basis of this classification to realize celestial reference frames, i.e. for selecting the set of defining sources used to define the fundamental axes of the frame. This set of sources is usually constrained in the data reduction by a no-net rotation constraint. Using two tools developed to determine the stability of realized frames, one that analyzes the stability of the annual realizations of a given frame and another that analyzes the coherence of random sub-frames, we determine the best usage of this classification. Conference Object Svalbard Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Norway Svalbard |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] |
spellingShingle |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] Gattano, C. Charlot, P. Realization of Celestial Reference Frames using the Allan Variance Classification |
topic_facet |
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] |
description |
International audience Recently te{GattanoLambertLeBail2018}, a new classification of VLBI radio sources was built on the basis of their astrometric stability revealed by the use of the Allan standard deviation. In such a classification, sources are divided into three groups depending on the nature of the noise content in the astrometric time series. The global level of noise then orders sources within each group. In this proceedings, we present several strategies on the basis of this classification to realize celestial reference frames, i.e. for selecting the set of defining sources used to define the fundamental axes of the frame. This set of sources is usually constrained in the data reduction by a no-net rotation constraint. Using two tools developed to determine the stability of realized frames, one that analyzes the stability of the annual realizations of a given frame and another that analyzes the coherence of random sub-frames, we determine the best usage of this classification. |
author2 |
M2A 2019 Laboratoire d'Astrophysique de Bordeaux Pessac (LAB) Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Gattano, C. Charlot, P. |
author_facet |
Gattano, C. Charlot, P. |
author_sort |
Gattano, C. |
title |
Realization of Celestial Reference Frames using the Allan Variance Classification |
title_short |
Realization of Celestial Reference Frames using the Allan Variance Classification |
title_full |
Realization of Celestial Reference Frames using the Allan Variance Classification |
title_fullStr |
Realization of Celestial Reference Frames using the Allan Variance Classification |
title_full_unstemmed |
Realization of Celestial Reference Frames using the Allan Variance Classification |
title_sort |
realization of celestial reference frames using the allan variance classification |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-02278176 |
op_coverage |
svalbard, Norway |
geographic |
Norway Svalbard |
geographic_facet |
Norway Svalbard |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings: "Global Geodesy and the Role of VGOS - Fundamental to Sustainable Development", Eds. Kyla L. Armstrong, Karen D. Baver, Dirk Behrend, NASA/CP-2019-219039, p. 184-188 https://hal.archives-ouvertes.fr/hal-02278176 International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings: "Global Geodesy and the Role of VGOS - Fundamental to Sustainable Development", Eds. Kyla L. Armstrong, Karen D. Baver, Dirk Behrend, NASA/CP-2019-219039, p. 184-188, Jun 2018, svalbard, Norway |
op_relation |
hal-02278176 https://hal.archives-ouvertes.fr/hal-02278176 BIBCODE: 2019ivs.conf.184G |
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1766213184619806720 |