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DRAO surveys [ CATS home ] [ Back to CATS list ] [ ftp ]

Higgs, 1989; DRAO 1991. 1991A&A...241..551W+
See also 18-19P (The Cygnus X region XVIII)

DRAO Penticton P-survey database

(as of May 1990, courtesy R.Roger & C.R.Purton)

DESCRIPTION OF POINT-SOURCE DATABASE RECORDS

Each source has one or more records in the database, with each record being 132 characters long. The number of records per source is determined by the amount of attached comments! 

The record format is as follows:

First Record:     Position        Contents

		  2-4             DRAO table number
				  (each DRAO survey is
				  assigned one or more
				  numbers)

		  6-8             Source number (in
				  given table)

		  10              Component indicator
				  ("A", "B", etc.)

		  12-13           RA (hours)

		  15-16           RA (min)

		  18-22           RA (sec) (XX.XX)

		  24-28           RA error (sec) (XX.XX)
				  (blank=unknown)

		  30              Sign of declination

		  31-32           DEC (degrees)

		  34-35           DEC (arcmin)

		  37-40           DEC (arcsec) (XX.X)

		  42-45           DEC error (arcsec)
				  (XX.X) (blank=unknown)

		  47              Epoch of coordinates
				  (1=B1950, 2=J2000,
				  3=unknown)

		  49              Type of position
				  determination
				  (1=rough estimate,
				  2=centroid, 3=peak,
				  4=fitted Gaussian,
				  5=unknown)

		  51-56           Flux #1 (variable
				  format)

		  58-62           Error in flux #1
				  (variable format,
				  may be blank)

		  64              Units for flux #1
				  (1=Jy, 2=mJy)

		  66              Type of flux #1
				  (1=total (integrated),
				  2=peak)

		  68              Type of flux
				  determination for
				  flux #1 (1=sum of
				  positive values above
				  baselevel, 2=sum of
				  values about baselevel,
				  3=fitted Gaussian,
				  4=unknown)

		  70-75           Flux #2 (variable
				  format)

		  77-81           Error in flux #2
				  (variable format,
				  may be blank)

		  83              Units for flux #2
				  (1=Jy, 2=mJy)

		  85              Type of flux #2
				  (1=total (integrated),
				  2=peak)

		  87              Type of flux
				  determination for
				  flux #2 (1=sum of
				  positive values above
				  baselevel, 2=sum of
				  values about baselevel,
				  3=fitted Gaussian,
				  4=unknown)

		  89-92           Frequency (GHz)
				  (1.42 or .408)

		  94-97           Major half-power width
				  (variable format)

		  99-102          Minor half-power width
				  (variable format)

		  104-108         Position angle (deg)
				  (variable format)

		  110             Units for widths
				  (1=arcmin, 2=arcsec)

		  112             Type of shape
				  determination (1=
				  approximate diameter
				  (minor width blank),
				  2=fitted Gaussian,
				  3=unknown)

		  114             Shape qualifier
				  (1=may be affected
				  by delay beam,
				  blank=reliable
				  estimate)

		  116-119         Date of observation
				  (years from 1900)
				  (XX.X)

		  121-130         Comments

		  131             Comment continuation
				  (non-blank and non-
				  zero if comments are
				  continued in next
				  record)


Second Record:    Position        Contents

		  1-93            Same as first record

		  94-129          Continued comments

		  131             Comment continuation
				  (non-blank and non-
				  zero if comments are
				  continued in next
				  record)

Third Record:     (same as preceding record)