HALCA ivo://jvo/isas/darts/halca/halca_vsop_correlated_data JVO DARTS/ISAS/JAXA 2021-03-02 most recent release JVO help desk help_desk@jvo.nao.ac.jp 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 TELESCOPE ARRAYS VERY LARGE ARRAY vla VERY LONG BASELINE INTERFEROMETERS VERY LONG BASELINE INTERFEROMETRY vlbi The VSOP (VLBI Space Observatory Programme) mission was led by the Institute of Space and Astronautical Science, in collaboration with the National Astronomical Observatory of Japan with international collaboration with NSAS, CSA, JIVE and the world radio telescopes in 14 countries. This mission provided a dedicated space radio telescope "HALCA" launched in February 1997, and carried out high-resolution observations at 1.6, 5.0, and 22 GHz with ground radio observatories to perform Very Long Baseline Interferometry (VLBI) on baselines of up to 2.6 Earth diameters. The observations are continued till 2003, and HALCA finished its operation in 2005. 1998Sci...281.1825H 1998, VSOP Results and the Future of Space VLBI, eds. H. Hirabayashi, R. A. Preston, L. I. Gurvits Volume 26, Issue 4,12-19 July 1998, Nagoya, Japan, ISSN: 0273-1177 2000PASJ...52..955H 2000, Astrophysical Phenomena Revealed by Space VLBI eds. H Hirabayashi, H Hirosawa, H Kobayashi., ISBN-13: 978-4998084808 2001Sci...294..128L 2016ApJ...833...56A https://darts.isas.jaxa.jp/general/gallery/halca_vsop/index_en.html Archive Research public 4 HALCA VSOP Correlated Data http://jvo.nao.ac.jp/skynode/do/tap/halca ADQL 2.0 application/x-votable+xml 4 VOSI capabilities http://jvo.nao.ac.jp/skynode/do/tap/halca/capabilities 4 VOSI availability http://jvo.nao.ac.jp/skynode/do/tap/halca/availability 4 SIAv2 service for HALCA http://jvo.nao.ac.jp/skynode/do/siap/halca/public/siav2/2.0? Pointed 336.4469 -4.9504 0.1 0.1 VSOP with HALCA VSOP with HALCA Radio