Study on observation planning of LAMOST focal plane positioning system and its simulation

Chao Zhai; Yi Jin; Xiaobo Peng; Xiaozheng Xing

doi:10.1117/12.669317

29 June 2006 Study on observation planning of LAMOST focal plane positioning system and its simulation

Chao Zhai, Yi Jin, Xiaobo Peng, Xiaozheng Xing

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 626939 (2006) https://doi.org/10.1117/12.669317
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Fiber Positioning System of LAMOST focal plane based on subarea thinking, adopts a parallel controllable positioning plan, the structure is designed as a round area and overlapped each other in order to eliminate the un-observation region. But it also makes the observation efficiency of the system become an important problem. In this paper According to the system, the model of LAMOST focal plane Observation Planning including 4000 fiber positioning units is built, Stars are allocated using netflow algorithm and mechanical collisions are diminished through the retreat algorithm, then the simulation of the system's observation efficiency is carried out. The problem of observation efficiency of LAMOST focal plane is analysed systemic and all-sided from the aspect of overlapped region, fiber positioning units, observation radius, collisions and so on. The observation efficiency of the system in theory is describes and the simulation indicates that the system's observation efficiency is acceptable. The analyses play an indicative role on the design of the LAMOST focal plane structure.

Citation Download Citation

Chao Zhai, Yi Jin, Xiaobo Peng, and Xiaozheng Xing "Study on observation planning of LAMOST focal plane positioning system and its simulation", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 626939 (29 June 2006); https://doi.org/10.1117/12.669317

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