Proceedings Article10.1117/12.926228
ALMA array element astronomical verification
Shin'ichiro Asayama,Lewis B. G. Knee,Paolo G. Calisse,Paulo C. Cortes,R. Jager,Bernhard Lopez,Cristian Lopez,T. Nakos,Neil M. Phillips,Matias Radiszcz,Richard S. Simon,Ignacio Toledo,Nicholas D. Whyborn,Hiroshi Yatagai,Joseph P. McMullin,P. Planesas +15 more
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TL;DR: The ALMA System Integration Science Team (SIST) is a group of scientists and data analysts whose primary task is to verify and characterize the astronomical performance of array elements as single dish and interferometric systems.
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Abstract: The Atacama Large Millimeter/submillimeter Array (ALMA) will consist of at least 54 twelve-meter antennas and 12
seven-meter antennas operating as an aperture synthesis array in the (sub)millimeter wavelength range. The ALMA
System Integration Science Team (SIST) is a group of scientists and data analysts whose primary task is to verify and
characterize the astronomical performance of array elements as single dish and interferometric systems. The full set of
tasks is required for the initial construction phase verification of every array element, and these can be divided roughly
into fundamental antenna performance tests (verification of antenna surface accuracy, basic tracking, switching, and on-the-fly rastering) and astronomical radio verification tasks (radio pointing, focus, basic interferometry, and end-to-end
spectroscopic verification). These activities occur both at the Operations Support Facility (just below 3000 m elevation)
and at the Array Operations Site at 5000 m.
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Citations
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Yingxi Zuo,Zheng Lou,Ji Yang,Jingquan Cheng +3 more
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TL;DR: In this paper, a design configuration for the near-field holography of the DATE5 surface measurement is presented, and simulation results under typical signal-to-noise ratios and design parameters are also provided.
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Assembly, integration, and verification (AIV) in ALMA: series processing of array elements
Bernhard Lopez,Rieks Jager,Nicholas D. Whyborn,Lewis B. G. Knee,Lewis B. G. Knee,Joseph P. McMullin +5 more
TL;DR: The way ALMA AIV evolved successfully from the initial phase to the present steady-state of array element series processing is described and an outlook of the path towards completion is concluded.
System engineering of the Atacama Large Millimeter/submillimeter Array
Ravinder Bhatia,Javier Martí,William Snow,Masahiro Sugimoto,Richard A. Sramek,M. Miccolis,Koh-Ichiro Morita,Demián Arancibia,Andrea Araya,Shin'ichiro Asayama,Denis Barkats,Rodrigo Brito,William D. Brundage,Wes Grammer,Christoph Haupt,H. Kurlandczyk,Norikazu Mizuno,Peter J. Napier,Eduardo Pizarro,Kamaljeet Saini,Gretchen R. Stahlman,Gianluca Verzichelli,Nick Whyborn,Pavel A. Yagoubov +23 more
TL;DR: The methodology, tools and processes adopted to system engineer a project of high technical complexity, by system engineering teams that are remotely located and from different cultures, and in accordance with a demanding schedule and within tight financial constraints are presented.
5
ALMA band 10 (787-950 GHz) first astronomical fringes
Shin'ichiro Asayama,Lewis B. G. Knee,Paolo G. Calisse,Juan P. Colque,Cristian Lopez,Theodoros Nakos,Neil M. Phillips,Kurt Plarre,Matias Radiszcz,Giorgio Siringo,Nicholas D. Whyborn,Hiroshi Yatagai +11 more
TL;DR: The Atacama Large Millimeter/submillimeter Array (ALMA) Band 10 receiver covering 787 to 950 GHz is the highest frequency receiver of the ten bands envisioned for the ALMA Front End system.
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The ALMA assembly, integration, and verification project: a retrospective analysis
Bernhard Lopez,Lewis B. G. Knee,H. Jager,Nicholas D. Whyborn,Joseph P. McMullin,Richard Murowinski,Alison B. Peck,Stuartt Corder +7 more
TL;DR: A retrospective analysis describes the originally presented project staffing plans and schedules, the underlying assumptions, identified risks and operational models, among others, and for comparison actual data on staffing levels, the resultant schedule, additional risks identified and those that actually materialized, are presented.
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References
The Atacama Large Millimeter/Submillimeter Array
Leonardo Testi
- 01 Jan 2009
TL;DR: The ALMA project as discussed by the authors has been designed and is being built to allow to achieve transformational science in the coming decades, and the combination of ALMA, the fully mature VLT/VLTI and later the E-ELT will be a unique asset offered by ESO to the european astronomical community.
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The Atacama Compact Array (ACA)
Satoru Iguchi,Koh-Ichiro Morita,Masahiro Sugimoto,Baltasar Vila Vilaro,Masao Saito,Tetsuo Hasegawa,Ryohei Kawabe,Ken'ichi Tatematsu,Seiichi Sakamoto,Hitoshi Kiuchi,Sachiko K. Okumura,George Kosugi,Junji Inatani,Shigehisa Takakuwa,Daisuke Iono,Takeshi Kamazaki,Ryusuke Ogasawara,Masato Ishiguro +17 more
TL;DR: The Atacama Compact Array (ACA) as discussed by the authors is an array composed of four 12 m dishes [TP (Total Power) Array] and twelve 7 m dishes (7 m Array).
Atacama Compact Array Antennas
Masao Saito,Junji Inatani,Kouichiro Nakanishi,Takahiro Naoi,Masumi Yamada,Hiro Saito,B. Ikenoue,Yoshihiro Kato,Kou-ichiro Morita,Norikazu Mizuno,Satoru Iguchi +10 more
TL;DR: In this paper, the Atacama Compact Array (ACA) 7m and 12m antennas of ALMA (Atacama Large Millimeter/submillimeter Array) have been evaluated at the Site Erection Facility area at an altitude of about 2900 meters.
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Engineering within the Assembly, Verification and Integration (AIV) Process in ALMA
TL;DR: The Atacama Large Millimeter/submillimeter Array (ALMA) is a joint project between astronomical organizations in Europe, North America, and East Asia, in collaboration with the Republic of Chile as mentioned in this paper.
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Assembly, integration, and verification (AIV) in ALMA: series processing of array elements
Bernhard Lopez,Rieks Jager,Nicholas D. Whyborn,Lewis B. G. Knee,Lewis B. G. Knee,Joseph P. McMullin +5 more
TL;DR: The way ALMA AIV evolved successfully from the initial phase to the present steady-state of array element series processing is described and an outlook of the path towards completion is concluded.