Storing, processing, and transmitting state confidential information are strictly prohibited on this website
Mei Ying, Liu Donghao, Wang Feng, Deng Hui, Dai Wei, Ji Kaifan. A Study of the FITS-IDI Format for the Chinese Spectral Radio Heliograph[J]. Astronomical Research and Technology, 2014, 11(4): 388-395.
Citation: Mei Ying, Liu Donghao, Wang Feng, Deng Hui, Dai Wei, Ji Kaifan. A Study of the FITS-IDI Format for the Chinese Spectral Radio Heliograph[J]. Astronomical Research and Technology, 2014, 11(4): 388-395.

A Study of the FITS-IDI Format for the Chinese Spectral Radio Heliograph

More Information
  • Received Date: December 25, 2013
  • Revised Date: January 19, 2014
  • Published Date: October 14, 2014
  • Raw data observed with the Chinese Spectral Radio Heliograph (CSRH) will be recorded in a self-defined format. For convenient distribution and use it is necessary to convert CSRH data files to be of other standard formats such as the FITS-IDI. After an in-depth analysis of the FITS-IDI data format, we present a proposal of mandatory and optional FITS-IDI fields for the CSRH. We also discuss calculation equations of values of several data fields, including the UU, VV, and WW. A FITS-IDI data file converted from a raw-data file has been input into the CASA software package, successfully resulting in a CASA file of integrated Measurement Sets (MS). The generating and subsequent processing of the CASA file demonstrate the correctness of the proposed CSRH FITS-IDI format. Our study could effectively advance the CSRH project and provide useful references for further research of data storage for other astronomical instruments.
  • [1]
    高姣姣, 王锋, 戴伟, 等. 面向射电日像仪的随机组结构剖析与文件设计[J]. 天文研究与技术——国家天文台台刊, 2013, 10(4):365-371. Gao Jiaojiao, Wang Feng, Dai Wei, et al. An analysis of the random-group data format and a design of the data file structure for a solar radio heliograph[J]. Astronomical Research & Technology——Publications of National Astronomical Observatories of China, 2013, 10(4):365-371.
    [2]
    Yan Y, Zhang J, Wang W, et al. The Chinese spectral radioheliograph-CSRH[J]. Earth, Moon, and Planets, 2009, 104(1-4):97-100.
    [3]
    Hanisch R J, Farris A, Greisen E W, et al. Definition of the flexible image transport system (FITS) [J]. Astronomy and Astrophysics, 2001, 376:359-380.
    [4]
    Greisen E W, Harten R H. An extension of FITS for groups of small arrays of data[J]. Astronomy and Astrophysics Supplement Series, 1981, 44:371-374.
    [5]
    Greisen E W. The FITS Interferometry Data Interchange Convention-Revised[EB/OL]. 2011. www.aoc.nrao.edu/~egreisen/AIPSMEM114.PS.
    [6]
    Thompson A R, Moran J M, Swenson Jr G W. Interferometry and synthesis in radio astronomy[M]. 2nd ed. Germany:Wiley-VCH Verlag GmbH & Co. KGaA, 1994.

Catalog

    Article views (175) PDF downloads (20) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return