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Development of target allocation methods for LAMOST focal plate

Published online by Cambridge University Press:  06 January 2014

Hailong Yuan ,
Haotong Zhang ,
Yanxia Zhang ,
Yajuan Lei  and
Yiqiao Dong
Hailong Yuan
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: [email protected]
Haotong Zhang
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: [email protected]
Yanxia Zhang
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: [email protected]
Yajuan Lei
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: [email protected]
Yiqiao Dong
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, China, 100012 email: [email protected]
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Abstract

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We first introduce the primary target allocation requirements and restrictions for the parallel control multiple fiber system, which is used in the LAMOST spectroscopic survey. The fiber positioner anti-collision model is imported. Then several target allocation methods and features are discussed in detail, including a network flow algorithm, high priority for fiber unit holding less target number, target allocation algorithm for groups, target allocation method for add-ons and target reallocation. Their virtues and weaknesses are analyzed for various kinds of scientific research situations. Furthermore an optimization concept using the Simulate Anneal Arithmetic (SAA) is developed to improve the fiber utilizing efficiency.

Keywords

surveystelescopesinstrumentation: spectrographs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S298: Setting the scene for Gaia and LAMOST , May 2013 , pp. 452
Copyright
Copyright © International Astronomical Union 2014 

References

Morales, I., Montero-Dorta, A. D., Azzaro, M., Prada, F., Sánchez, J., & Becerril, S. 2012, MNRAS 419 1187–1196CrossRefGoogle Scholar