Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.927048 |
66 antennas, up to 16 km baselines, 5000 m elevation, 28 km from support; the coming challenge of ALMA Observatory Antenna Group Operations and Maintenance | |
Chalmers, Dean; Daruich, Felipe; Hoff, Brian; Jara, Cristobal | |
通讯作者 | Chalmers, Dean |
会议名称 | Conference on Observatory Operations - Strategies, Processes and Systems IV |
会议日期 | JUL 04-06, 2012 |
会议地点 | Amsterdam, NETHERLANDS |
英文摘要 | The ALMA Observatory is under construction at 5000 m above sea level on the Chajnantor plateau located in the Atacama Desert, Chile. When complete it will be comprised of 66 parabolic reflector antennas that can be configured in various arrays using a subset of 192 different stations with baselines from 15 to 16,000 m. The Antenna Group in the ALMA Department of Engineering is responsible for maintenance of the antenna mechanical, control and structural systems, antenna relocations and mechanical aspects of astronomical instrumentation exchanges. The large number of antennas, expanse, elevation, weather conditions of the Array Operation Site (AOS) and its distance from the Operations Support Facility (OSF) will make operations and maintenance for the Antenna Group a challenge. Currently, approximately half of the antennas are in place at the AOS and the first period of Early Science is underway. Operational strategies and specialized equipment developed for preventive and corrective maintenance, array reconfiguration and weather event response are being put to the test and revised based on real experience. This paper explains the operational environment, the constraints it imposes, some of the strategies and specialized equipment being developed to reduce reaction time and resources needed to maintain the array and maximize availability for science operations. |
英文关键词 | Antenna array maintenance operations |
来源出版物 | OBSERVATORY OPERATIONS: STRATEGIES, PROCESSES, AND SYSTEMS IV |
ISSN | 0277-786X |
出版年 | 2012 |
卷号 | 8448 |
EISBN | 978-0-8194-9149-7 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Chile |
收录类别 | CPCI-S |
WOS记录号 | WOS:000312389300038 |
WOS类目 | Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics |
WOS研究方向 | Astronomy & Astrophysics ; Instruments & Instrumentation ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/300886 |
作者单位 | Atacama Large Millimeter Submillimeter Array Obse, San Pedro De Atacama, Chile |
推荐引用方式 GB/T 7714 | Chalmers, Dean,Daruich, Felipe,Hoff, Brian,et al. 66 antennas, up to 16 km baselines, 5000 m elevation, 28 km from support; the coming challenge of ALMA Observatory Antenna Group Operations and Maintenance[C]:SPIE-INT SOC OPTICAL ENGINEERING,2012. |
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