Information on Service 'TGSSADR Image Cutout Service'

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Further access options are discussed below

Download the TGSS Alternative Data Release image cutouts (up to 1 deg square).

For a list of all services and tables belonging to this service's resource, see Information on resource 'TGSSADR Image Catalogue'

Service Documentation

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
FORMAT Output format Requested format of the image data N/A N/A
hFORMAT Output format Requested format of the image data N/A N/A
hINTERSECT Intersection type Relation of image and specified Region of Interest. N/A N/A
hPOS Position ICRS Position, RA,DEC, or Simbad object (e.g., 234.234,-32.45) deg pos.eq
hSIZE Field size Size in decimal degrees (e.g., 0.2 or 1,0.1) deg N/A
INTERSECT Intersection type Relation of image and specified Region of Interest. N/A N/A
POS Position ICRS Position, RA,DEC decimal degrees (e.g., 234.234,-32.46) deg pos.eq
SIZE Field size Size in decimal degrees (e.g., 0.2 or 1,0.1) deg N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
accref Fits Image Access key for the data N/A N/A
accsize File size Size of the data in megabytes Mbyte VOX:Image_FileSize
centerAlpha Ctr. RA Approximate center of image, RA deg POS_EQ_RA_MAIN
centerDelta Ctr. Dec Approximate center of image, Dec deg POS_EQ_DEC_MAIN
imageTitle Title Synthetic name of the image N/A VOX:Image_Title
pixelScale Scales The pixel scale along each image axis deg/pix VOX:Image_Scale
pixelSize Axes Lengths Number of pixels along each of the axes N/A VOX:Image_Naxis

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
dateObs Obs. date Epoch at midpoint of observation d VOX:Image_MJDateObs 0
bandpassId Bandpass Freeform name of the bandpass used N/A VOX:BandPass_ID 10
instId Instrument Identifier of the originating instrument N/A INST_ID 15
accref Fits Image Access key for the data N/A N/A 20
centerAlpha Ctr. RA Approximate center of image, RA deg POS_EQ_RA_MAIN 20
centerDelta Ctr. Dec Approximate center of image, Dec deg POS_EQ_DEC_MAIN 20
pixelSize Axes Lengths Number of pixels along each of the axes N/A VOX:Image_Naxis 20
pixelScale Scales The pixel scale along each image axis deg/pix VOX:Image_Scale 20
imageTitle Title Synthetic name of the image N/A VOX:Image_Title 20
accsize File size Size of the data in megabytes Mbyte VOX:Image_FileSize 20
mime Type MIME type of the file served N/A N/A 20
nAxes #axes Number of axes in data N/A VOX:Image_Naxes 20
refFrame Ref. Frame Coordinate system reference frame N/A VOX:STC_CoordRefFrame 20
wcs_equinox Equinox Equinox of the given coordinates yr VOX:STC_CoordEquinox 20
wcs_projection Proj. FITS WCS projection type N/A VOX:WCS_CoordProjection 20
wcs_refPixel Ref. pixel WCS reference pixel pix VOX:WCS_CoordRefPixel 20
wcs_refValues Ref. values World coordinates at WCS reference pixel deg VOX:WCS_CoordRefValue 20
wcs_cdmatrix CD matrix FITS WCS CDij matrix deg/pix VOX:WCS_CDMatrix 20
bandpassUnit Bandpass unit Unit of bandpass specifications (always m). N/A VOX:BandPass_Unit 20
bandpassRefval Band Ref. Characteristic quantity for the bandpass of the image m VOX:BandPass_RefValue 20
bandpassHi Band upper Upper limit of the bandpass (in BandPass_Unit units) m VOX:BandPass_HiLimit 20
bandpassLo Band lower Lower limit of the bandpass (in BandPass_Unit units) m VOX:BandPass_LoLimit 20
pixflags P. Flags Flags specifying the processing done (C-original; F-resampled; Z-fluxes valid; X-not resampled; V-for display only N/A VOX:Image_PixFlags 20
coverage Coverage Field covered by the image deg N/A 20
BMAJ Beam Maj. Axis Beam Major Axis, in arcsec arcsec N/A 20
BMIN Beam Min. Axis Beam Minor Axis, in arcsec arcsec N/A 20
BPA Beam Position Angle Beam Position Angle, in deg deg N/A 20
owner Owner Owner of the data N/A N/A 25
embargo Embargo ends Date the data will become/became public a N/A 25

VOResource XML (that's something exclusively for VO nerds)