VGOS Source Selection Criteria

Bill Petrachenko 1 P. Charlot 2 A. Collioud 2 Anthony Searle
2 M2A 2016
LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
Abstract : Source structure has long been recognized as a significant risk factor for the broadband method. The issue of greatest concern is that structure related phases and delays will lead to cycle slips during broadband phase connection. These errors are subtle to detect and difficult or impossible to correct after the fact. As the advent of VGOS operations draws near, criteria will be needed to generate lists of candidate VGOS sources that are at the same time strong enough to be detected and simple enough not to cause broadband phase connection errors. The purpose of this study is to propose useful VGOS source selection criteria and to understand their relation to broadband frequency sequences, source lists, and geodetic/astrometric performance. In order to increase the number of available sources, an attempt will be made to find frequency sequences that operate reliably below the typical VGOS flux cut-off of 250 mJy. Candidate source lists will be generated using the Bordeaux VLBI Image Data Base (BVID) as input.
Type de document :
Communication dans un congrès
2016ivs.conf..82P - International VLBI Service for Geodesy and Astrometry 2016 General Meeting Proceedings: "New Horizons with VGOS", Eds. Dirk Behrend, Karen D. Baver, Kyla L. Armstrong, NASA/CP-2016-219016, p. 82-86 - 13-19 March 2016 Africa/Johannesburg timezone, Mar 2016, Johannesburg South Africa. pp.82 - 86, 2016
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https://hal.archives-ouvertes.fr/hal-01547697
Contributeur : Marie-Paule Pomies <>
Soumis le : mardi 27 juin 2017 - 09:35:15
Dernière modification le : mardi 29 mai 2018 - 12:51:09

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Bill Petrachenko, P. Charlot, A. Collioud, Anthony Searle. VGOS Source Selection Criteria. 2016ivs.conf..82P - International VLBI Service for Geodesy and Astrometry 2016 General Meeting Proceedings: "New Horizons with VGOS", Eds. Dirk Behrend, Karen D. Baver, Kyla L. Armstrong, NASA/CP-2016-219016, p. 82-86 - 13-19 March 2016 Africa/Johannesburg timezone, Mar 2016, Johannesburg South Africa. pp.82 - 86, 2016. 〈hal-01547697〉

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