About ADC

Under Construction.

Multi-wavelength Data Analysis System / Open-use of Computers (MDAS)

The Multi-wavelength Data Analysis System (MDAS) is an open-use computing system designed for analyzing astronomical observational data at various wavelengths. It provides over one hundred software packages to support data reduction and analysis of astronomical data from various telescopes. Users can access the interactive data analysis servers via SSH and perform data analysis on these servers. Additionally, users can analyze data using workstations and print results on large-format paper in the open-use rooms on the Mitaka campus.

Large-scale Data Analysis System (LSC) -- Cooperating with the Subaru Telescope --

ADC has operated the Large-scale Data Analysis System (LSC) in collaboration with the Subaru telescope. LSC is an open-use computer system built for data reduction and analysis of large-scale observational data, including data from the Subaru Telescope Hyper Suprime-Cam (HSC).

Astronomical Data Archives Center (ADAC)

The Astronomical Data Archives Center (ADAC) provides various services for using the astronomical data and catalogs for research and education more effectively and conveniently. Current operating services are SMOKA (Subaru-Mitaka-Okayama-Kiso-Archive system), Tomo-e Gozen all-sky-survey stacked data archive, photographic plates archive, VizieR (astronomical catalog service) mirror, and SkyMonitor Imaging Data Service System.

Japanese Virtual Observatory (JVO)

The Japanese Virtual Observatory (JVO) system provides VO (Virtual Observatory) portal service, which enables users to search astronomical data in the world, and also provides dedicated search interface for the reduced data obtained by Subaru telescope, ALMA and Nobeyama radio telescopes, Gaia and AKARI space telescopes, and so on.

Subaru data archive for observers (STARS2.6) Mitaka (MASTARS2.6) -- Cooperating with the Subaru Telescope --

Coordinated with Subaru data archive for observers (STARS) at Hawaii, a data archive and a download site at Mitaka (MASTARS) is operated by ADC, mainly for Subaru observers in Japan.

Hyper Suprime-Cam Subaru Strategic Program -- Cooperating with the Subaru Telescope --

Hyper Suprime-Cam (HSC) is a wide-field optical imaging camera mounted at the prime focus of Subaru Telescope. ADC cooperates with Subaru Telescope by participating in development and commissioning of this instrument, especially in data analysis components, and is committed to distributing the HSC data to users. In the Subaru Strategic Program (SSP), an international survey program to sample a wide sky coverage using 300 nights with HSC, ADC has been contributing to developing data analysis software, conducting data processing, and hosting data releases of the processed data products. We plans to enhance the HSC data sets to offer a more valuable science archive by incorporating additional data sets from future instruments such as a new Subaru spectrograph (PFS). ADC also supports a data processing platform for openuse users to process a large volume of data sets like HSC data, and works for improvements of the system.

Nobeyama-45m / ASTE Science Data Archive -- Cooperating with the Nobeyama Radio Observatory and NAOJ ALMA Project --

Nobeyama-45m / ASTE Science Data Archive provides science data obtained by the Nobeyama 45-m Radio Telescope and the ASTE Telescope. Observation data obtained with these telescopes are released after the proprietary period ends. In addition, scientific observation data from the ASTE Telescope within its proprietary period are also distributed to the PIs via this Archive.

ADC Community Forum (Japanese text only)

The ADC Community Forum is a BBS designed to answer questions from users of various ADC services and to facilitate information sharing among users. For security and data-protection reasons, as of August 2025, access is currently limited to within the observatory network (including VPN connections). We look forward to your questions and comments.

Workshop (Japanese text only)

ADC holds lectures about how to use astronomy analysis software (such as IDL, IRAF/PyRAF, C, SQL, Jupyter notebook, etc.) for researchers and students investgating astronomy. Announcements are sent through mailing lists such as tennet. Textbooks are available in the lecture's webpage.

Solar Data Archive System (SDAS) -- Working with the Solar Science Observatory --

The Solar Data Archive System (SDAS) is a computer system that archives and provides solar data obtained from NAOJ-related observing projects. The SDAS is jointly operated by the Astronomy Data Center and the Solar Science Observatory. The system also provides an environment for solar data analysis on the MDAS.

ALMA Science Portal at NAOJ -- Working with the NAOJ ALMA Project --

ALMA Science Portal is Web portal site operated by ALMA Project (international collaborative project involving 22 countries and regions, including Japan and other East Asian nations, North America, member countries of the European Southern Observatory, and Chile in South America that is the site of construction) that provides data search, FITS image viewer, astronomical catalog and observed and service for downloading observational data and processed data.

Staff members operating ADC.