News: the second incremental data release!

We are pleased to announce the 2nd incremental data release from HSC-SSP.  This release includes (1) emission-line object catalog from Hayashi et al. (2017), (2) weak-lensing simulation data from Mandelbaum et al. (2017), and (3) deep, multi-band photometric catalog from Mehta et al. (2017).  In addition, two new data retrieval tools are available: PSF picker and postage-stamp retriever.  The former is an online tool, where a user can upload a coordinate list and retrieve PSF models at the input positions.  This will be useful for detailed analysis of object shapes.  The latter is a client tool, with which a user can download postage stamps of multiple objects in color.   For details, follow the links from the Data Access page.

Public Data Release 1

Welcome to the Hyper Suprime-Cam Subaru Strategic Program Data Release Site!

The first public release of HSC-SSP occurred on 28 February 2017.  The release includes over 100 square degrees of deep multi-color data served through dedicated databases and user interfaces.  The figures below shows the area covered in this release and the table gives an overview of the data in the three survey layers.  Refer to our survey website for details of the survey design.

If you use the HSC data in your publication, please acknowledge us.

Please note that only the processed HSC data are available on this site.  The raw data can be retrieved from SMOKA.


Here is a list of technical papers for your reference.  Please reference relevant papers in your publications.  PASJ special issue for HSC-SSP has been published and many of the papers here are included in that issue.


Feel free to contact us with any questions, requests, and bug reports at  Also, check out the FAQ page.

The Collaboration and Supporting Agencies

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is led by the astronomical communities of Japan and Taiwan, and Princeton University.  The instrumentation and software were developed by the National Astronomical Observatory of Japan (NAOJ), the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), the University of Tokyo, the High Energy Accelerator Research Organization (KEK), the Academia Sinica Institute for Astronomy and Astrophysics in Taiwan (ASIAA), and Princeton University.  The survey was made possible by funding contributed by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), the Japan Society for the Promotion of Science (JSPS),  (Japan Science and Technology Agency (JST),  the Toray Science Foundation, NAOJ, Kavli IPMU, KEK, ASIAA,  and Princeton University.

Release History

Public Data Release 1 28 Feb. 2017
Incremental Data Release 1 5 June 2017 (photo-z’s for the Wide layer and SSP+UH COSMOS data)
Incremental Data Release 2 21 November 2017 (Emission-line object catalog, Weak-lensing simulation data, multi-band SXDS catalog, PSF picker, and postage-stamp retriever)