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VIII/44             Miyun 232MHz survey                            (Zhang+ 1997)
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The Miyun 232 MHz survey. II. The main list
     Zhang X., Zheng Y., Chen H., Wang S., Cao A., Peng B., Nan R.
    <Astron. Astrophys. Suppl. Ser. 121, 59 (1997)>
    =1997A&AS..121...59Z      (SIMBAD/NED BibCode)
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ADC_Keywords: Radio sources
Keywords: surveys - catalogs - radio continuum: general

Description:
    A meter-wave survey of the sky region north of declination +30{deg}
    has been carried out with the Miyun Synthesis Radio Telescope
    (MSRT), Beijing Astronomical Observatory, at 232MHz. It is a
    moderately deep survey. The observations were made between January
    1985 and December 1993. The covered sky area is divided into 156
    fields of view. Basically all adjacent fields are separated by
    8 degree angular distance. Fields #54, #56, #115, #116, have no data
    yet. A catalog of 34462 radio sources is given in Table 2. Table3
    shows the information on the 152 fields of view.

File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
fig1.ps        132        864    Arrangement of the fields in the Miyun
                                  232MHz survey
fig2.ps        132        148    Comparisons of flux densities
fig3.ps        132        108   *rms of background fluctuation in RA direction
fig4.ps        132        137   *rms of background fluctuation in DE direction
table2.dat      75      34426    The source-list of the survey
table3.dat      30        152    Information on 152 fields of view
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Note on fig3.ps, fig4.ps: RMSs between the Miyun and the 6C catalog.
     Sources used in this measurement are within the range:
     RA: 6h to 16h, DE: 30deg to 40deg
--------------------------------------------------------------------------------

See also:
    VIII/18 : 6C Survey at 151MHz (I)  (Baldwin+ 1985)
    VIII/21 : 6C Survey at 151MHz (II)   (Hales+ 1988)
    VIII/22 : 6C Survey at 151MHz (III)  (Hales+ 1990)
    VIII/23 : 6C Survey at 151MHz (IV)   (Hales+ 1991)
    VIII/24 : 6C Survey at 151MHz (V)    (Hales+ 1993)
    VIII/25 : 6C Survey at 151MHz (VI)   (Hales+ 1993)

Byte-by-byte Description of file: table2.dat
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   Bytes Format Units   Label     Explanations
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   4- 14  A11   ---     Name      Source name (1)
  16- 17  I2    h       RAh       Right ascension 1950.0 of the source
  19- 20  I2    min     RAm       Right ascension 1950.0 of the source
  22- 25  F4.1  s       RAs       Right ascension 1950.0 of the source
  28- 29  I2    deg     DEd       Declination 1950.0 of the source
  31- 32  I2    arcmin  DEm       Declination 1950.0 of the source
  34- 37  F4.1  arcsec  DEs       Declination 1950.0 of the source
  40- 47  F8.2  Jy      Speak     Peak flux density (Jy/beam)
  50- 57  F8.2  Jy      Sint      ? Integrated flux density (Jy/beam)
  58- 63  F6.2  ---     Factor    Factor for correcting the primary beam
  64- 70  F7.1  ---     S/N       Local S/N  (2)
  73- 75  A3    ---     Field     Number of the field of view
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Note (1): The name is based on a truncated B1950 position; a suffix
          A, B, C or D differentiates sources with identical
          truncated positions.
Note (2): Local S/N is calculated in the way of
          maximum (peak flux, integral flux)/(local noise)
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Byte-by-byte Description of file: table3.dat
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   Bytes Format Units    Label     Explanations
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   1-  3  A3    ---      Field     Number of the field of view
   5-  6  I2    h        RAh       Right ascension of the field center at OBSdate
   8-  9  I2    min      RAm       Right ascension of the field center at OBSdate
  11- 12  I2    s        RAs       Right ascension of the field center at OBSdate
  15- 16  I2    deg      DEd       Declination of the field center at OBSdate
  19- 26  A8    DD/MM/YY OBSdate   Observing date
  28- 30  I3    mJy      Fluct     Background fluctuation (mJy/beam)
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Acknowledgements: Xizhen Zhang <zxz@bao01.bao.ac.cn>

References:
   Zhang X. et al., 1993A&AS...99..545Z: The Miyun 232 MHz survey. I.
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(End)                                         Patricia Bauer [CDS]   03-Jun-1996