creator_did = ivo://CDS/P/VISTA/VVV/DR4/J obs_collection = VISTA VVV DR4 J obs_title = VISTA VVV DR4 J obs_description = The public ESO near-IR variability survey (VVV) scanned the Milky Way bulge and an adjacent section of the mid-plane where star formation activity is high. The survey took 1929 hours of observations with the 4-metre VISTA telescope during five years (2010-2014), covering ~10^9 point sources across an area of 520 deg^2, including 33 known globular clusters and ~350 open clusters. The final product is a deep near-IR atlas in five passbands (0.9-2.5 microns) and a catalogue of more than 10^6 variable point sources. Unlike single-epoch surveys that, in most cases, only produce 2-D maps, the VVV variable star survey will enable the construction of a 3-D map of the surveyed region using well-understood distance indicators such as RR Lyrae stars, and Cepheids. The VISTA Variables in the Via Lactea (VVV) survey fourth data release (DR4) provides VISTA tile images and source lists in ZYJHKs filters, processed by the Cambridge Astronomical Survey Unit (CASU), for a total sky coverage of 560 square degrees. DR4 contains science data products from observations in the period 1 October 2013 - 15 October 2015, and also science data products from observations in September 2010 to September 2013 not included in the previous release. hips_creator = Buga M. (CDS) hips_copyright = CNRS/Unistra obs_ack = Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programme 179.B-2002 prov_progenitor = ESO bib_reference = 2010NewA...15..433M bib_reference_url = https://ui.adsabs.harvard.edu/?#abs/2010NewA...15..433M obs_copyright = ESO obs_copyright_url = https://www.eso.org/sci/observing/policies/publications.html client_category = Image/Infrared/VISTA/VVV #DR4 contains science data products from observations in the period 1 October 2013 – 15 October 2015, and also science data products from observations in September 2010 to September 2013 not included in the previous release. t_min = 55440 t_max = 57310 obs_regime = Infrared #Central Wavelength 1.252 ; Width 0.172 em_min = 1.166e-6 em_max = 1.338e-6 hips_builder = Aladin/HipsGen v10.123 hips_version = 1.4 hips_release_date = 2019-05-05T07:39Z hips_frame = equatorial hips_order = 11 hips_tile_width = 512 #hips_service_url = ex: http://yourHipsServer/VISTA VVV DR4 J hips_status = public master clonableOnce hips_tile_format = png fits hips_pixel_cut = 1120 1800 hips_data_range = -15140 49245 hips_pixel_scale = 5.591E-5 s_pixel_scale = 9.480E-5 dataproduct_type = image moc_sky_fraction = 0.01373 hips_estsize = 1005228710 hipsgen_date = 2017-07-27T21:01Z hips_initial_fov = 1.48437 hips_initial_ra = 276.14221 hips_initial_dec = -24.29364 hips_pixel_bitpix = 32 data_pixel_bitpix = 32 hips_sampling = bilinear hips_skyval_method = TRUE hips_skyval_value = 4468.845 80545.5702 -60559.5 196978.5 hips_overlay = mean hips_hierarchy = median hipsgen_params = in=J out=/data3/buga/VVV/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J mocOrder=11 cache=/data4/tmp "fitskeys=DATE-OBS OBJECT INSTRUME EXPTIME" INDEX TILES PNG DETAILS hips_creation_date = 2017-07-27T21:01Z hipsgen_date_1 = 2017-07-28T04:39Z hipsgen_params_1 = in=J out=/data3/buga/VVV/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J mocOrder=11 cache=/data4/tmp "fitskeys=DATE-OBS OBJECT INSTRUME EXPTIME" INDEX TILES PNG DETAILS hipsgen_date_2 = 2017-09-21T07:34Z hipsgen_params_2 = in=J out=/data3/buga/VVV/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J cache=/data4/tmp maxthread=55 "hips_pixel_cut=1120 1800" -f PNG hipsgen_date_3 = 2017-09-21T15:08Z hipsgen_params_3 = in=J out=/data3/buga/VVV/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J cache=/data4/tmp maxthread=55 "hips_pixel_cut=1120 1800" -f PNG hipsgen_date_4 = 2017-09-30T03:37Z hipsgen_params_4 = in=J out=/data3/buga/VVV/NEW/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J mocOrder=11 cache=/data4/tmp maxthread=55 method=MEAN "hips_pixel_cut=1120 1800" -f PNG hipsgen_date_5 = 2017-09-30T11:22Z hipsgen_params_5 = in=J out=/data3/buga/VVV/NEW/HIPS_J skyval=true creator_did=CDS/C/VISTA/VVV/J mocOrder=11 cache=/data4/tmp maxthread=55 method=MEAN "hips_pixel_cut=1120 1800" -f PNG hips_order_min = 0 hipsgen_date_6 = 2019-05-05T07:39Z hipsgen_params_6 = out=/asd-volumes/sc1-asd-volume10/VISTA/VVV_DR4/VISTA-VVV-DR4-J UPDATE