ID                   = CDS/P/ACT_Planck/DR4/f090
hips_initial_fov     = 360.0
hips_initial_ra      = 0.00833
hips_initial_dec     = -20.00833
creator_did          = ivo://CDS/P/ACT_Planck/DR4/f090
hips_pixel_bitpix    = -64
data_pixel_bitpix    = -64
hips_sampling        = bilinear
hips_overlay         = mean
hips_hierarchy       = median
hips_creator         = Buga M. (CDS)
hips_copyright       = CNRS/Unistra
obs_title            = ACT_Planck DR4 f090
obs_collection       = ACT_Planck DR4 f090
obs_description      = The Atacama Cosmology Telescope (ACT) is a six-meter diameter telescope on Cerro Toco in the Atacama Desert of northern Chile (image above by Jon Ward). It is designed to make high-resolution measurements of the cosmic microwave background (CMB) temperature and polarization anisotropies and detect massive galaxy clusters via the thermal Sunyaev Zel'dovich (tSZ) effect. Reconstruction of the CMB lensing potential will play a key role in the cosmological detection of neutrino mass, and measuring the imprint of primordial gravitational waves in B-mode polarization could provide unique insights into the early universe and quantum nature of gravity. The second-generation, polarization-sensitive receiver ACTPol observed between 2013 and 2016. The four-year survey consists of 17,000 square degrees of the sky mapped at 98 and 150 GHz, with the deepest 600 square degrees at a noise < 10 uK-arcmin.
prov_progenitor      = https://lambda.gsfc.nasa.gov/product/act/actpol_prod_table.cfm
bib_reference        = 2020ApJ...903L..13M
bib_reference_url    = https://ui.adsabs.harvard.edu/abs/2020ApJ...903L..13M/abstract
obs_copyright        = LAMBDA HEASARC
obs_copyright_url    = https://lambda.gsfc.nasa.gov/
t_min                = 54466.6
t_max                = 57752.2
obs_regime           = Radio
client_category      = Cube
em_min               = 0.00305910
em_max               = 0.00305910
hips_builder         = Aladin/HipsGen v11.037
hips_version         = 1.4
hips_release_date    = 2021-03-15T10:44Z
hips_frame           = equatorial
hips_order           = 4
hips_order_min       = 0
hips_tile_width      = 512
hips_status          = public master clonableOnce
hips_tile_format     = png fits
hips_pixel_cut       = -730.3 908.4
hips_data_range      = -2919 2925
hips_pixel_scale     = 0.007157
s_pixel_scale        = 0.008333
dataproduct_type     = cube
hips_cube_depth      = 3
hips_cube_firstframe  = 1
data_cube_crpix3     = 1.0
data_cube_crval3     = 1.0
data_cube_cdelt3     = 1.0
data_cube_bunit3     = null
moc_sky_fraction     = 0.4578
hips_estsize         = 17992980
hipsgen_date         = 2021-03-15T10:38Z
hipsgen_params       = in=act_planck_dr4.01_s08s16_AA_f090_night_map.fits out=HiPS/ creator_did=CDS/P/ACT/DR4/90 verbose=4 BLANK=0
hips_creation_date   = 2021-03-15T10:38Z
hips_service_url     = https://alasky.cds.unistra.fr/ACT/DR4/CDS_P_ACT_Planck_DR4_f90
hips_progenitor_url  = https://alasky.cds.unistra.fr/ACT/DR4/CDS_P_ACT_Planck_DR4_f90/HpxFinder
hips_service_url_1   = https://alaskybis.cds.unistra.fr/ACT/DR4/CDS_P_ACT_Planck_DR4_f90
hips_status_1        = public mirror clonableOnce
moc_type             = stmoc
moc_time_order       = 25
moc_time_range       = 1
moc_order            = 7
obs_initial_ra       = 0.00833
obs_initial_dec      = -20.00833
obs_initial_fov      = 0.4580648549089874
TIMESTAMP            = 1721288489550