The VO @ ASTRON

A...

• ADQL Query
  
  An endpoint for submitting ADQL queries to the data center and retrieving the result in various forms.

L...

• LBCS Calibrator Search
  
  LBCS Calibrator Search
• LOFAR HETDEX Image Archive
  
  The LOFAR HBA Tier-1 preliminary data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field. In excess of 40,000 sources are detected in the images that cover an area of over 350 square degrees, have a resolution of 25 arcsec, and typical noise levels of less than 0.5 mJy/beam.
• LOFAR HETDEX Image Cutout Service
  
• LOFAR HETDEX Source Catalogue
  
  The LOFAR Two-metre Sky Survey First Data Release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field (right ascension 10h45m00s to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of 365,694 radio sources are detected in a region covering 424 square degrees. The maps have a median sensitivity of 71 uJy/beam and a resolution of 6 arcsec. Optical counterparts for 71% of the radio sources have been identified and where possible photometric redshifts for these sources have been derived.
• LOFARTIER 1 Image Archive
  
  The LOFAR HBA Tier-1 preliminary data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field. In excess of 40,000 sources are detected in the images that cover an area of over 350 square degrees, have a resolution of 25 arcsec, and typical noise levels of less than 0.5 mJy/beam.
• LOFARTIER 1 Image Cutout Service
  
• LOFARTIER 1 Source Catalogue
  
  The LOFAR HBA Tier-1 preliminary data release contains images and catalogs that characterise the low-frequency radio emission in the region of the HETDEX Spring Field. In excess of 40,000 sources are detected in the images that cover an area of over 350 square degrees, have a resolution of 25 arcsec, and typical noise levels of less than 0.5 mJy/beam.

M...

• [P] MSSS catalogue
  
  The Multifrequency Snapshot Sky Survey (MSSS) is the first major observing program to be carried out with LOFAR during its ongoing commissioning phase. This service queries the unified source catalogue database for the MSSS survey.
• [P] MSSS Image Archive
  
  The Multifrequency Snapshot Sky Survey (MSSS) is the first major observing program to be carried out with LOFAR during its ongoing commissioning phase. This service queries the archive of both LBA and HBA images.
• MSSS Verification Field Images
  
  The Multifrequency Snapshot Sky Survey (MSSS) is the first major observing program to be carried out with LOFAR during its ongoing commissioning phase. This service queries the archive of both LBA and HBA images.
• MSSS Verification Field Sources
  
  The Multifrequency Snapshot Sky Survey (MSSS) is the first major observing program to be carried out with LOFAR during its ongoing commissioning phase. This service queries the unified source catalogue database for the MSSS survey.

T...

• TGSSADR Image Archive
  
  Download the TGSS Alternative Data Release mosaic images (5 deg square mosaics).
• TGSSADR Image Cutout Service
  
  Download the TGSS Alternative Data Release image cutouts (up to 1 deg square).
• TGSSADR Source Catalogue
  
  Query the TGSS Alternative Data Release 7-sigma source catalog.
• The VO @ ASTRON TAP service
  
  The The VO @ ASTRON's TAP end point. The Table Access Protocol (TAP) lets you execute queries against our database tables, inspect various metadata, and upload your own data. It is thus the VO's premier way to access public data holdings. Tables exposed through this endpoint include: main from the lbcs schema, img_main from the lofartier1 schema, img_main, main from the tgssadr schema, main, msssvf_img_main from the mvf schema, columns, groups, key_columns, keys, schemas, tables from the tap_schema schema, img_main from the hetdex schema, img_main from the msss schema, emptyobscore, obscore from the ivoa schema.

ADQL

• ADQL Query
• The VO @ ASTRON TAP service

Catalogs

• ADQL Query
• LBCS Calibrator Search
• LOFAR HETDEX Image Archive
• LOFAR HETDEX Image Cutout Service
• LOFAR HETDEX Source Catalogue
• LOFARTIER 1 Image Archive
• LOFARTIER 1 Image Cutout Service
• LOFARTIER 1 Source Catalogue
• [P] MSSS Image Archive
• MSSS Verification Field Images
• MSSS Verification Field Sources
• [P] MSSS catalogue
• TGSSADR Image Archive
• TGSSADR Image Cutout Service
• TGSSADR Source Catalogue
• The VO @ ASTRON TAP service

Virtual observatory

• ADQL Query
• The VO @ ASTRON TAP service