HALCA_AGN ivo://jvo/isas/darts/halca/halca_vsop_survey_program_data JVO DARTS/ISAS/JAXA 2021-10-19 most recent release JVO help desk admin@jvo.nao.ac.jp ACTIVE GALACTIC NUCLEI agn CORRELATION RADIO ASTRONOMY RADIO ABSORPTION RADIO ANTENNAS RADIO ASTROMETRY RADIO ASTRONOMY RADIO INTERFEROMETERS RADIO INTERFEROMETRY RADIO OBSERVATORIES RADIO SOURCES RADIO SPECTRA RADIO SPECTROGRAPHS RADIO SPECTROMETERS RADIO SPECTROSCOPY RADIO TELESCOPES SPACE ASTRONOMY SPACE OBSERVATORIES SPACE TELESCOPES SURVEYS TELESCOPE ARRAYS VERY LARGE ARRAY vla VERY LONG BASELINE INTERFEROMETERS VERY LONG BASELINE INTERFEROMETRY vlbi A significant fraction of the mission time of VSOP was to be dedicated to the VSOP Survey Programme of bright compact Active Galactic Nuclei (AGN) at 5 GHz, which was lead by ISAS. The VSOP Survey Sources are an unbiased dataset of 294 targets, of which 82% were successfully observed. 2000PASJ...52..997H 2004ApJS..155...27L 2004ApJS..155...33S 2004ApJ...616..110H 2008ApJS..175..314D https://darts.isas.jaxa.jp/general/gallery/halca_vsop/survey/ Archive Survey Research public 4 TAP service for HALCA AGN Survey http://jvo.nao.ac.jp/skynode/do/tap/halca_agn ADQL 2.0 application/x-votable+xml 4 VOSI capabilities standard interface http://jvo.nao.ac.jp/skynode/do/tap/halca_agn/capabilities 4 VOSI availability standard interface http://jvo.nao.ac.jp/skynode/do/tap/halca_agn/availability 4 SIAv2 service for HALCA AGN survey http://jvo.nao.ac.jp/skynode/do/siap/halca_agn/public/siav2/2.0? 261.7413 -64.4645 0.1 0.1 VSOP with HALCA VSOP with HALCA Radio