Key to FLS_VLA Ancillary Catalogue Data Table Columns

All the data returned from the search are listed in tabular form on the results page. Any source tables found are listed first, followed by images. This help page explains the format and columns of the catalogue metadata table (standard flat ascii file in IPAC format).

Catalogue Metadata Table

The FLS_VLA catalogue column header is as follows:

     | cntr    | ra    |   dec   |    peak_int   |        major |   minor |  pos_angle   |
      i_rms   |     res_rms |   res_peak   |   res_flux   |   xcenter |   ycenter |  jd  |

Below is the key describing each column name found in the Atlas FLS_VLA catalogue metadata table. In addition to the key, more information is stored in the Data Dictionary (DD) for the FLS_VLA catalogue; this file is also in IPAC format).

Column name Unit Datatype Nulls allowed? Description
rowcntr int int N Row counter
ra degrees real N Right Ascension (Equinox 2000)
dec degrees real N Declination (Equinox 2000)
peak_int milliJy/beam real N Peak Stokes I
major arcseconds real N Fitted major axis size
minor arcseconds real N Fitted minor axis size
pos_angle degrees real N Fitted position angle of major axis
i_rms milliJy/beam real N RMS noise in Stokes I image
res_rms milliJy/beam real N RMS Stokes I residual after fit
res_peak milliJy/beam real N Peak Stokes I residual
res_flux milliJy real N Integrated Stokes I residual
xpos pixels real N "X" pixel in field of center
ypos pixels real N "Y" pixel in field of center
jd day int N Julian date on which this entry was derived from an image

Click here for more information the ascii IPAC table format. Instructions