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 = CDS (A.Oberto) client_application = AladinLite client_sort_key = 04-001-00 prov_progenitor = IPAC/NASA client_category = Image/Infrared/2MASS #obs_copyright_url = URL to copyright page of the original data #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 = Aladin/HipsGen v11.023 hips_version = 1.4 hips_release_date = 2021-02-24T03:22Z 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 mirror unclonable hips_copyright = CNRS/Unistra obs_ack = University of Massachusetts & IPAC/Caltech bib_reference = 2006AJ....131.1163S bib_reference_url = http://cdsbib.u-strasbg.fr/cgi-bin/cdsbib?2006AJ....131.1163S obs_copyright = University of Massachusetts & IPAC/Caltech hips_pixel_scale = 2.236E-4 dataproduct_type = image hips_rgb_red = 2MASS K [-0.5 20.0 40.0 Log] hips_rgb_green = 2MASSh [1.0 20.0 100.0 Log] hips_rgb_blue = 2MASS J [-0.5 20.0 40.0 Log] moc_sky_fraction = 1 hipsgen_date = 2020-10-01T09:28Z hipsgen_params = inRed=Hips-K2 inBlue=Hips-J2 inGreen=Hips-H out=Hips-Color5 creator_did=ivo://CDS-test/P/2MASS/Color skyval=SKYVAL "fitskeys=ORDATE SCANNO SCANDIR" maxthread=64 hips_frame=equatorial "cmRed=-0.5 20 40 log" "cmBlue=-0.5 20 40 log" "cmGreen=1 20 100 log" color=jpeg RGB hips_creation_date = 2012-02-24T12:43Z hips_tile_format = jpeg hipsgen_date_1 = 2020-10-12T12:49Z hipsgen_params_1 = inRed=Hips-K2 inBlue=Hips-J2 inGreen=Hips-H out=Hips-Color5 creator_did=ivo://CDS-test/P/2MASS/Color skyval=SKYVAL "fitskeys=ORDATE SCANNO SCANDIR" maxthread=64 hips_frame=equatorial "cmRed=-0.5 20 40 log" "cmBlue=-0.5 20 40 log" "cmGreen=1 20 100 log" color=jpeg RGB hips_hierarchy = median dataproduct_subtype = color