Masayuki Tanaka (NAOJ) writes:
The first public data release of HSC-SSP occurred today! The data
release site is now fully functional and people started to access
the website. This is a major milestone of the survey.
We hope that this data will be useful in exploring the potential of LSST. The data was processed through a pipeline based on the LSST-DM pipeline, so this release will be (and has already been) useful in informing development in the Science Pipelines.
It seems we missed the cut-off to get into today’s arXiv, but here’s the abstract of the data release paper:
Title: First Data Release of the Hyper Suprime-Cam Subaru Strategic Program
Authors: Hiroaki Aihara, Robert Armstrong, Steven Bickerton, James Bosch, Jean
Coupon, Hisanori Furusawa, Yusuke Hayashi, Hiroyuki Ikeda, Yukiko Kamata,
Hiroshi Karoji, Satoshi Kawanomoto, Michitaro Koike, Yutaka Komiyama, Robert
H. Lupton, Sogo Mineo, Hironao Miyatake, Satoshi Miyazaki, Tomoki Morokuma,
Yoshiyuki Obuchi, Yukie Oishi, Yuki Okura, Paul A. Price, Tadafumi Takata,
Manobu M. Tanaka, Masayuki Tanaka, Yoko Tanaka, Tomohisa Uchida, Fumihiro
Uraguchi, Yousuke Utsumi, Shiang-Yu Wang, Yoshihiko Yamada, Hitomi Yamanoi,
Naoki Yasuda, Nobuo Arimoto, Masashi Chiba, Francois Finet, Hiroki Fujimori,
Seiji Fujimoto, Junko Furusawa, Tomotsugu Goto, Andy Goulding, James E. Gunn,
Yuichi Harikane, Takashi Hattori, Masao Hayashi, Krzysztof G. Helminiak, Ryo
Higuchi, Chiaki Hikage, Paul T.P. Ho, Bau-Ching Hsieh, Kuiyun Huang, Song
Huang, Masatoshi Imanishi, Ikuru Iwata, Anton T. Jaelani, Hung-Yu Jian,
Nobunari Kashikawa, Nobuhiko Katayama, Takashi Kojima, Akira Konno, Shintaro
Koshida, Alexie Leauthaud, C.-H. Lee, Lihwai Lin, Yen-Ting Lin, Rachel
Mandelbaum, Yoshiki Matsuoka, Elinor Medezinski, Shoken Miyama, Rieko Momose,
Anupreeta More, Surhud More, Shiro Mukae, Ryoma Murata, Hitoshi Murayama,
Tohru Nagao, Fumiaki Nakata, Hiroko Niikura, Atsushi J. Nishizawa, Masamune
Oguri, Nobuhiro Okabe, Yoshiaki Ono, Masato Onodera, Masafusa Onoue, Masami
Ouchi, Tae-Soo Pyo, Takatoshi Shibuya, Kazuhiro Shimasaku, Melanie Simet,
Joshua Speagle, David N. Spergel, Michael A. Strauss, Yuma Sugahara, Naoshi
Sugiyama, Yasushi Suto, Nao Suzuki, Philip J. Tait, Masahiro Takada, Tsuyoshi
Terai, Yoshiki Toba, Edwin L. Turner, Hisakazu Uchiyama, Keiichi Umetsu, Yuji
Urata, Tomonori Usuda, Sherry Yeh, and Suraphong Yuma
Categories: astro-ph.CO astro-ph.EP astro-ph.GA astro-ph.HE astro-ph.SR
Comments: 33 pages, 19 figures. Draft paper to be submitted to PASJ special
issue in a month. Data available at https://hsc-release.mtk.nao.ac.jp/
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
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The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is a three-layered
imaging survey aimed at addressing some of the most outstanding questions in
astronomy today, including the nature of dark matter and dark energy. The
survey has been awarded 300 nights of observing time at the Subaru Telescope.
The survey started in March 2014. This paper presents the first public data
release of HSC-SSP. This release includes data taken in the first 1.7 years of
observations (61.5 nights) and each of the Wide, Deep, and UltraDeep layers
covers about 108, 26, and 4 square degrees down to depths of i~26.4, ~26.5, and
~27.2 mag, respectively (5 sigma for point sources). All the layers are
observed in five broad-bands (grizy) and the Deep and UltraDeep layers are
observed in narrow-bands as well. We achieve an impressive image quality of 0.6
arcsec in the i-band in the Wide layer. We show that we achieve 1-2 per cent
PSF photometry (rms) both internally and externally (against Pan-STARRS1), and
~10 mas and ~40 mas internal and external astrometric accuracy, respectively.
Both the calibrated images and catalogs are made available to the community
through dedicated user interfaces and database servers. In addition to the
pipeline products, we also provide value-added products such as photometric
redshifts and a collection of public spectroscopic redshifts. Detailed
descriptions of all the data can be found online. The data release website is
https://hsc-release.mtk.nao.ac.jp.