13 September 2012 An observation planning algorithm applied to multi-objective astronomical observations and its simulation in COSMOS field
Author Affiliations +
Abstract
Multi-Object Fiber Spectroscopic sky surveys are now booming, such as LAMOST already built by China, BIGBOSS project put forward by the U.S. Lawrence Berkeley National Lab and GTC (Gran Telescopio Canarias) telescope developed by the United States, Mexico and Spain. They all use or will use this approach and each fiber can be moved within a certain area for one astrology target, so observation planning is particularly important for this Sky Surveys. One observation planning algorithm used in multi-objective astronomical observations is developed. It can avoid the collision and interference between the fiber positioning units in the focal plane during the observation in one field of view, and the interested objects can be ovserved in a limited round with the maximize efficiency. Also, the observation simulation can be made for wide field of view through multi-FOV observation. After the observation planning is built ,the simulation is made in COSMOS field using GTC telescope. Interested galaxies, stars and high-redshift LBG galaxies are selected after the removal of the mask area, which may be bright stars. Then 9 FOV simulation is completed and observation efficiency and fiber utilization ratio for every round are given. Otherwise,allocating a certain number of fibers for background sky, giving different weights for different objects and how to move the FOV to improve the overall observation efficiency are discussed.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yi Jin, Yonggang Gu, Chao Zhai, "An observation planning algorithm applied to multi-objective astronomical observations and its simulation in COSMOS field", Proc. SPIE 8448, Observatory Operations: Strategies, Processes, and Systems IV, 84481W (13 September 2012); doi: 10.1117/12.925904; https://doi.org/10.1117/12.925904
PROCEEDINGS
10 PAGES


SHARE
Back to Top