hips_doi             = 10.26093/cds/aladin/bzc8-nw
creator_did          = ivo://CDS/P/2MASS/color
hips_initial_fov     = 58.63230142835039
hips_initial_ra      = 266.40499479
hips_initial_dec     = -28.936173970
obs_collection       = The Two Micron All Sky Survey - J-H-K bands (2MASS color)
obs_title            = 2MASS color J (1.23um), H (1.66um), K (2.16um)
obs_description      = 2MASS has uniformly scanned the entire sky in three near-infrared bands to detect and characterize point sources brighter than about 1 mJy in each band, with signal-to-noise ratio (SNR) greater than 10, using a pixel size of 2.0". This has achieved an 80,000-fold improvement in sensitivity relative to earlier surveys. 2MASS used two highly-automated 1.3-m telescopes, one at Mt. Hopkins, AZ, and one at CTIO, Chile. Each telescope was equipped with a three-channel camera, each channel consisting of a 256x256 array of HgCdTe detectors, capable of observing the sky simultaneously at J (1.25 microns), H (1.65 microns), and Ks (2.17 microns). The University of Massachusetts (UMass) was responsible for the overall management of the project, and for developing the infrared cameras and on-site computing systems at both facilities. The Infrared Processing and Analysis Center (IPAC) is responsible for all data processing through the Production Pipeline, and construction and distribution of the data products. Funding is provided primarily by NASA and the NSF
obs_copyright_url    = http://www.ipac.caltech.edu/2mass/
hips_creator         = Oberto A., Boch T. (CDS)

client_application   = AladinLite
client_sort_key      = 04-001-00
prov_progenitor      = IPAC/NASA
client_category      = Image/Infrared/2MASS
#Between 1997 June and 2001 February => MJD=(UnixTime/86400)+40587 ; 1997 June =  865123200 UnixTime ; 2001 February =980985600 UnixTime
t_min                = 50600
t_max                = 51941

obs_regime           = Infrared
#Lambda J 1.235 (+/-0.006), H 1.662 (+/-0.009), K 2.159 (+/-0.011) cf: http://www.ipac.caltech.edu/2mass/releases/allsky/faq.html#reference
#Bandwith J 0.162 (+/-0.001) , H 0.251 (+/- 0.002) , K 0.262 (+/- 0.002) cf: http://www.ipac.caltech.edu/2mass/releases/allsky/faq.html#reference
em_min               = 1.147E-6
em_max               = 2.303E-6
hips_builder         = Custom ad-hoc Python script. Following cuts have been used: --> K-band (red): -0.493522647023201, 69, sqrt stretch --> H-band (green): -0.5254, 69, sqrt stretch --> J-band (blue) -0.456, 50, sqrt stretch. Moreover, in order to reduce the green noise, green pixels with values greater than the mean between red and blue values have been replaced with the mean value.
hips_version         = 1.4
hips_release_date    = 2024-10-09T07:12Z
hips_frame           = equatorial
hips_order           = 9
hips_order_min       = 0
hips_tile_width      = 512
#hips_service_url    = ex: http://yourHipsServer/2MASS Color
hips_status          = public master clonableOnce
hips_copyright       = CNRS/Unistra
hips_license         = ODbL-1.0
obs_ack              = University of Massachusetts & IPAC/Caltech
bib_reference        = 2006AJ....131.1163S
bib_reference_url    = https://ui.adsabs.harvard.edu/abs/2006AJ....131.1163S/abstract
obs_copyright        = University of Massachusetts & IPAC/Caltech
hips_pixel_scale     = 2.236E-4
dataproduct_type     = image
moc_sky_fraction     = 1
hips_estsize         = 75160788
hips_creation_date   = 2012-02-24T12:43Z
hips_tile_format     = jpeg
hips_hierarchy       = mean
dataproduct_subtype  = color