The Greenland Telescope (GLT): Antenna status and future plans

Philippe Raffin; Juan Carlos Algaba-Marcosa; Keiichi Asada; Raymond Blundell; Roberto Burgos; Chih Cheng Chang; Ming Tang Chen; Robert Christensen; Paul K. Grimes; C. C. Han; Paul T.P. Ho; Yau De Huang; Makoto Inoue; Patrick M. Koch; Derek Kubo; Steve Leiker; Ching Tang Liu; Pierre Martin-Cocher; Satoki Matsushita; Masanori Nakamura; Hiroaki Nishioka; George Nystrom; Scott N. Paine; Nimesh A. Patel; Nicolas Pradel; Hung Yi Pu; H. Y. Shen; William Snow; Tirupati K. Sridharan; Ranjani Srinivasan; Edward Tong; Jackie Wang

doi:10.1117/12.2056836

The Greenland Telescope (GLT): Antenna status and future plans

Philippe Raffin^*, Juan Carlos Algaba-Marcosa, Keiichi Asada, Raymond Blundell, Roberto Burgos, Chih Cheng Chang, Ming Tang Chen, Robert Christensen, Paul K. Grimes, C. C. Han, Paul T.P. Ho, Yau De Huang, Makoto Inoue, Patrick M. Koch, Derek Kubo, Steve Leiker, Ching Tang Liu, Pierre Martin-Cocher, Satoki Matsushita, Masanori NakamuraHiroaki Nishioka, George Nystrom, Scott N. Paine, Nimesh A. Patel, Nicolas Pradel, Hung Yi Pu, H. Y. Shen, William Snow, Tirupati K. Sridharan, Ranjani Srinivasan, Edward Tong, Jackie Wang

^*此作品的通信作者

研究成果: 書貢獻/報告類型 › 會議論文篇章

11 引文斯高帕斯（Scopus）

摘要

The ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO) in 2011. SAO and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), SAO's main partner for this project, are working jointly to relocate the antenna to Greenland to carry out millimeter and submillimeter VLBI observations. This paper presents the work carried out on upgrading the antenna to enable operation in the Arctic climate by the GLT Team to make this challenging project possible, with an emphasis on the unexpected telescope components that had to be either redesigned or changed. Five-years of inactivity, with the antenna laying idle in the desert of New Mexico, coupled with the extreme weather conditions of the selected site in Greenland have it necessary to significantly refurbish the antenna. We found that many components did need to be replaced, such as the antenna support cone, the azimuth bearing, the carbon fiber quadrupod, the hexapod, the HVAC, the tiltmeters, the antenna electronic enclosures housing servo and other drive components, and the cables. We selected Vertex, the original antenna manufacturer, for the main design work, which is in progress. The next coming months will see the major antenna components and subsystems shipped to a site of the US East Coast for test-fitting the major antenna components, which have been retrofitted. The following step will be to ship the components to Greenland to carry out VLBI and single dish observations. Antenna reassembly at Summit Station should take place during the summer of 2018.

原文	英語
主出版物標題	Ground-Based and Airborne Telescopes V
編輯	Helen J. Hall, Larry M. Stepp, Roberto Gilmozzi
發行者	SPIE
ISBN（電子）	9780819496133
DOIs	https://doi.org/10.1117/12.2056836
出版狀態	已發佈 - 2014
對外發佈	是
事件	Ground-Based and Airborne Telescopes V - Montreal, 加拿大持續時間: 2014 6月 22 → 2014 6月 27

出版系列

名字	Proceedings of SPIE - The International Society for Optical Engineering
卷	9145
ISSN（列印）	0277-786X
ISSN（電子）	1996-756X

會議

會議	Ground-Based and Airborne Telescopes V
國家/地區	加拿大
城市	Montreal
期間	2014/06/22 → 2014/06/27

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
電腦科學應用
應用數學
電氣與電子工程

UN SDG

此研究成果有助於以下永續發展目標

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10.1117/12.2056836

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引用此

Raffin, P., Algaba-Marcosa, J. C., Asada, K., Blundell, R., Burgos, R., Chang, C. C., Chen, M. T., Christensen, R., Grimes, P. K., Han, C. C., Ho, P. T. P., Huang, Y. D., Inoue, M., Koch, P. M., Kubo, D., Leiker, S., Liu, C. T., Martin-Cocher, P., Matsushita, S., ... Wang, J. (2014). The Greenland Telescope (GLT): Antenna status and future plans. 於 H. J. Hall, L. M. Stepp, & R. Gilmozzi (編輯), Ground-Based and Airborne Telescopes V 文章 91450G (Proceedings of SPIE - The International Society for Optical Engineering; 卷 9145). SPIE. https://doi.org/10.1117/12.2056836

The Greenland Telescope (GLT): Antenna status and future plans. / Raffin, Philippe; Algaba-Marcosa, Juan Carlos; Asada, Keiichi 等.
Ground-Based and Airborne Telescopes V. 編輯 / Helen J. Hall; Larry M. Stepp; Roberto Gilmozzi. SPIE, 2014. 91450G (Proceedings of SPIE - The International Society for Optical Engineering; 卷 9145).

研究成果: 書貢獻/報告類型 › 會議論文篇章

Raffin, P, Algaba-Marcosa, JC, Asada, K, Blundell, R, Burgos, R, Chang, CC, Chen, MT, Christensen, R, Grimes, PK, Han, CC, Ho, PTP, Huang, YD, Inoue, M, Koch, PM, Kubo, D, Leiker, S, Liu, CT, Martin-Cocher, P, Matsushita, S, Nakamura, M, Nishioka, H, Nystrom, G, Paine, SN, Patel, NA, Pradel, N, Pu, HY, Shen, HY, Snow, W, Sridharan, TK, Srinivasan, R, Tong, E & Wang, J 2014, The Greenland Telescope (GLT): Antenna status and future plans. 於 HJ Hall, LM Stepp & R Gilmozzi (編輯), Ground-Based and Airborne Telescopes V., 91450G, Proceedings of SPIE - The International Society for Optical Engineering, 卷 9145, SPIE, Ground-Based and Airborne Telescopes V, Montreal, 加拿大, 2014/06/22. https://doi.org/10.1117/12.2056836

@inproceedings{40b6737667ff44d19d891dfc4eb69562,

title = "The Greenland Telescope (GLT): Antenna status and future plans",

abstract = "The ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO) in 2011. SAO and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), SAO's main partner for this project, are working jointly to relocate the antenna to Greenland to carry out millimeter and submillimeter VLBI observations. This paper presents the work carried out on upgrading the antenna to enable operation in the Arctic climate by the GLT Team to make this challenging project possible, with an emphasis on the unexpected telescope components that had to be either redesigned or changed. Five-years of inactivity, with the antenna laying idle in the desert of New Mexico, coupled with the extreme weather conditions of the selected site in Greenland have it necessary to significantly refurbish the antenna. We found that many components did need to be replaced, such as the antenna support cone, the azimuth bearing, the carbon fiber quadrupod, the hexapod, the HVAC, the tiltmeters, the antenna electronic enclosures housing servo and other drive components, and the cables. We selected Vertex, the original antenna manufacturer, for the main design work, which is in progress. The next coming months will see the major antenna components and subsystems shipped to a site of the US East Coast for test-fitting the major antenna components, which have been retrofitted. The following step will be to ship the components to Greenland to carry out VLBI and single dish observations. Antenna reassembly at Summit Station should take place during the summer of 2018.",

keywords = "Greenland, VLBI, antenna retrofit, carbon fiber",

author = "Philippe Raffin and Algaba-Marcosa, {Juan Carlos} and Keiichi Asada and Raymond Blundell and Roberto Burgos and Chang, {Chih Cheng} and Chen, {Ming Tang} and Robert Christensen and Grimes, {Paul K.} and Han, {C. C.} and Ho, {Paul T.P.} and Huang, {Yau De} and Makoto Inoue and Koch, {Patrick M.} and Derek Kubo and Steve Leiker and Liu, {Ching Tang} and Pierre Martin-Cocher and Satoki Matsushita and Masanori Nakamura and Hiroaki Nishioka and George Nystrom and Paine, {Scott N.} and Patel, {Nimesh A.} and Nicolas Pradel and Pu, {Hung Yi} and Shen, {H. Y.} and William Snow and Sridharan, {Tirupati K.} and Ranjani Srinivasan and Edward Tong and Jackie Wang",

note = "Publisher Copyright: {\textcopyright} 2014 SPIE.; Ground-Based and Airborne Telescopes V ; Conference date: 22-06-2014 Through 27-06-2014",

year = "2014",

doi = "10.1117/12.2056836",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Hall, {Helen J.} and Stepp, {Larry M.} and Roberto Gilmozzi",

booktitle = "Ground-Based and Airborne Telescopes V",

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T2 - Ground-Based and Airborne Telescopes V

AU - Raffin, Philippe

AU - Algaba-Marcosa, Juan Carlos

AU - Asada, Keiichi

AU - Blundell, Raymond

AU - Burgos, Roberto

AU - Chang, Chih Cheng

AU - Chen, Ming Tang

AU - Christensen, Robert

AU - Grimes, Paul K.

AU - Han, C. C.

AU - Ho, Paul T.P.

AU - Huang, Yau De

AU - Inoue, Makoto

AU - Koch, Patrick M.

AU - Kubo, Derek

AU - Leiker, Steve

AU - Liu, Ching Tang

AU - Martin-Cocher, Pierre

AU - Matsushita, Satoki

AU - Nakamura, Masanori

AU - Nishioka, Hiroaki

AU - Nystrom, George

AU - Paine, Scott N.

AU - Patel, Nimesh A.

AU - Pradel, Nicolas

AU - Pu, Hung Yi

AU - Shen, H. Y.

AU - Snow, William

AU - Sridharan, Tirupati K.

AU - Srinivasan, Ranjani

AU - Tong, Edward

AU - Wang, Jackie

PY - 2014

Y1 - 2014

N2 - The ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO) in 2011. SAO and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), SAO's main partner for this project, are working jointly to relocate the antenna to Greenland to carry out millimeter and submillimeter VLBI observations. This paper presents the work carried out on upgrading the antenna to enable operation in the Arctic climate by the GLT Team to make this challenging project possible, with an emphasis on the unexpected telescope components that had to be either redesigned or changed. Five-years of inactivity, with the antenna laying idle in the desert of New Mexico, coupled with the extreme weather conditions of the selected site in Greenland have it necessary to significantly refurbish the antenna. We found that many components did need to be replaced, such as the antenna support cone, the azimuth bearing, the carbon fiber quadrupod, the hexapod, the HVAC, the tiltmeters, the antenna electronic enclosures housing servo and other drive components, and the cables. We selected Vertex, the original antenna manufacturer, for the main design work, which is in progress. The next coming months will see the major antenna components and subsystems shipped to a site of the US East Coast for test-fitting the major antenna components, which have been retrofitted. The following step will be to ship the components to Greenland to carry out VLBI and single dish observations. Antenna reassembly at Summit Station should take place during the summer of 2018.

AB - The ALMA North America Prototype Antenna was awarded to the Smithsonian Astrophysical Observatory (SAO) in 2011. SAO and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), SAO's main partner for this project, are working jointly to relocate the antenna to Greenland to carry out millimeter and submillimeter VLBI observations. This paper presents the work carried out on upgrading the antenna to enable operation in the Arctic climate by the GLT Team to make this challenging project possible, with an emphasis on the unexpected telescope components that had to be either redesigned or changed. Five-years of inactivity, with the antenna laying idle in the desert of New Mexico, coupled with the extreme weather conditions of the selected site in Greenland have it necessary to significantly refurbish the antenna. We found that many components did need to be replaced, such as the antenna support cone, the azimuth bearing, the carbon fiber quadrupod, the hexapod, the HVAC, the tiltmeters, the antenna electronic enclosures housing servo and other drive components, and the cables. We selected Vertex, the original antenna manufacturer, for the main design work, which is in progress. The next coming months will see the major antenna components and subsystems shipped to a site of the US East Coast for test-fitting the major antenna components, which have been retrofitted. The following step will be to ship the components to Greenland to carry out VLBI and single dish observations. Antenna reassembly at Summit Station should take place during the summer of 2018.

KW - Greenland

KW - VLBI

KW - antenna retrofit

KW - carbon fiber

UR - http://www.scopus.com/inward/record.url?scp=84922754884&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922754884&partnerID=8YFLogxK

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DO - 10.1117/12.2056836

M3 - Conference contribution

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Ground-Based and Airborne Telescopes V

A2 - Hall, Helen J.

A2 - Stepp, Larry M.

A2 - Gilmozzi, Roberto

PB - SPIE

Y2 - 22 June 2014 through 27 June 2014

ER -

The Greenland Telescope (GLT): Antenna status and future plans

摘要

出版系列

會議

ASJC Scopus subject areas

UN SDG

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