# Presentation: 596109

## Scientific Satellite Data Archives at JAXA

***Scientific Satellite Data Archives at JAXA***

- Ken Ebisawa, K. Matsuzaki, Iku Shinohara, T. Tamura, H. Murakami, Y. Miyashita,  K. Inada, H. Narumi,  S. Fujishima, S. Sobue,  M. Abe,
- K. Kitazato and  Ken T. Murata (JAXA)

*Solar Astronomy*

*Space Astronomy*

- We will introduce scientific satellite data archiving activities in Japan, being carried out primarily at JAXA/ISAS.  Since1970's, ISAS has been launching small or medium-size astronomy, solar-terrestrial physics (STP), and solar physics satellites.  In  1997,ISAS has started scientific satellite data archives "DARTS" (Data Archives and Transmission System; http://darts.isas.jaxa.jp).  At  DARTS, we archive most ISAS satellite data taken after late 1980's. Currently, ISAS's three STP satellites, two astronomical satellites  and one solar satellite are operational, and these data are being archived at DARTS.  In 2003, ISAS and two other space agencies (NASDA and NAL) merged, and Japan's sole space agency "JAXA" has established.  JAXA is capable of launching larger scientific satellites such as the lunar orbiting mission SELENE (SELenological and ENgineering Explorer), which is planned to be launched in August 2007. The lunar and planeta exploration is going to be one of the main projects of JAXA. We will present our plan of archiving SELENE and other future lunar and planetary data at JAXA.

*Solar-Terrestrial Physics*

- Specify periods

- Various Quick-Look Plots!

***“******Conjunction Event Finder” at DARTS***
- A convenient QL plot browsing tool.
- http://darts.isas.jaxa.jp/stp/cef/cef.cgi
- Choose periods (and satellite or observatories), then you can browse various kinds of data stored in the database all over the world very easily.

*Click!*

***Geotail data at DARTS***
- A convenient QL plot browsing tool.
- http://darts.isas.jaxa.jp/stp/cef/geotail

- Input periods

- Data plots are made on the fly!

*Click!*

*Lunar* *and* *Planetary Science*

*Hayabusa archives** *(to be public in April 2007)

**http://hayabusa.sci.isas.jaxa.jp/**

**AMICA:**** Level-1 imaging data (in FITS format). All ONC-T images & some ONC-W images**
**NIRS:**** Both ****spectral**** data of Level-1 & Level-2 (in FITS format). Level-1: voltage data, Level-2: I/F (****reflectance****) data**
**LIDAR:**** Level-2 ranging data (in ASCII format). **
**XRS:**** Level-1 x-ray spectral data (in ASCII format). Histogram data of channel number & x-ray counts**

*SELENE Archives*
- http://www.selene.jaxa.jp

- The main orbiter will observe the distribution of the elements and minerals on the surface, the surface and sub-surface structure, the gravity field, the remnant of the magnetic field and the environment of energetic particles and plasma of the Moon. SELENE is planned to be launched in summer 2007

- SELENE (SELenogical and Engineering Explore) is the most sophisticated lunar exploration mission in the post-Apollo Era.  SELENE consists of the main orbiter and two small satellites – the Relay satellite and the VRAD satellite.

- Past and current Japanese astronomical satellite data are archived:
- Ginga, ASCA, Suzaku (X-rays), IRTS, Akari (infrared), HALCA (Radio)

- http://darts.isas.jaxa.jp/astro

- Suzaku X-ray data

- http://darts.isas.jaxa.jp/solar

- Multi-mission data query

- IRTS scan path

- Yohkoh and Hinode solar satellite data are archived.  Hinode archives will be publicly open in May 2007.

- Yokoh daily images from 1991 September to 2000 February

- XRT(X-ray
- Telescope)
- Data

*Hinode archives*

*Search with time and region*

- SOT(Solar
- Optcal
- Telescope)
- data

- Ginga archives

- VCO

- MMO

*Future Planetary Database at JAXA*

- SELENE database has been constructed by the project team.  We are planning to develop a new multi-mission planetary DB based on the SELENE DB design using a PDS compatible data structure

***DB for Heliospheric plasma****** science******in cooperation with Bepi Colombo MMO***

***Current Problems and Requirements***

- • Bepi Colombo MMO will explore the mercury’ magnetosphere.• Contribution to ILWS is desired.• Collaboration with Solar Orbiter, Sun observations, Cross-Scale mission, etc.• Current Planetary DB (PDS) is not suitable for this topic, and the interoperability with heliospheric plasma science DB is required.• Method to realize the interoperable DB must be considered.

- • Scope of DB should include not only the public use but also use for the mission team’s data processing.  - Simpler protocols are desired. Mission teams don’t want to be burdened      with DB.  -  Sometimes, detailed access control is required. • Interoperability with neighboring science field is desired.  - Existing DB resources should be inherited.  - It is better to define the I/F methods for interoperability.