Hayabusa Data Archives Makoto Yoshikawa (JAXA) COSPAR Capacity Building Workshop on Planetary Science July 23 - Aug. 3, 2007 Montevideo, Uruguay

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Overview Hayabusa science data has been released in April 2007 through a data distribution server placed at ISAS/JAXA. URL: The data type is fits or text. (total:2GB) The data will be transformed into PDS format by the collaboration with Hayabusa science team members of US. The data format is also discussed under the work of International Planetary Data Alliance (IPDA).

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Website

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Data AMICA : Images of Itokawa NIRS : Infrared Spectrum LIDAR : Distance between the spacecraft and Itokawa XRS : X-ray Fluorescence Spectrum SPICE : Ancillary data Shape Model : Digital data of the shape of Itokawa

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Remote Sensing Instruments onboard Hayabusa Multi-Spectral Telescopic Imager (AMICA) > CCD viewing angle 5.7°with 8 band-pass filters > About 1500 still images obtained Laser Altimeter (LIDAR) > Measurement accuracy of 1 m at 50m altitude > 1,670,000 hits obtained Near-Infrared Spectrometer (NIRS) > 64-channel InGaAs detector at wavelengths of 0.8~2.1 micron > Viewing angle 0.1° (6-90 m per pixel spatial resolution) > More than 80,000 spectra obtained X-ray Fluorescence Spectrometer (XRS) > CCD viewing angle: 3.5°, 160 eV resolution at 5.9 keV > 6,000 spectra from the asteroid surface obtained

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Mission Sequence Launch 9 May 2003 Earth Swingby 19 May 2004 Asteroid Arrival 12 Sept (Observations, sampling) Earth Return June ,000km 20km 3km 10km 4,000km Itokawa Approach Phase Proximity Phase Cruising Phase Gate Position Home Position Descent & Touch down

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Definition of the data level Level-0: raw data (telemetry data) Level-1: data preserved after format change of telemetry data (only telemetry data necessary for each instrument is included.) Level-2: data produced by processing the Level-1 data

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Current Situation Calibration for data archives are still ongoing, and necessary information for data analysis is being arranged from now on. We do not have special tool to analyze our data. (You can use general tools such as IRAF, IDL, SPICE, etc, or you must make your own program.) We do not have a tutorial set of data analysis yet.

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay What can we do in this Workshop? The data of AMICA (NIRS and XRS data may not be appropriate for this time.) Ex 1. To study of the surface properties: the size distribution of boulders or craters Ex 2. To create color image by using images taken by different filters Ex 2. To study local topography by LIDAR The shape model Ex. to create the light curve of Itokawa SPICE data

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Shape model Shape model of Itokawa is provided.

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Lightcurve of Itokawa Kaasalainen et al, A&A 405, L29-L32 (2003)

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Lightcurve of Itokawa by Hayabusa

July 28, 2007 COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay Local Topography Measured by LIDAR J M Rough Terrain near Tsukuba Tsukuba Boulder with 3-4 m height was identified A possible rock fissure was also identified Rough Terrain: Surface roughness near Tsukuba Boulder: 2.2 m Smooth Terrain: Surface roughness in the Muses Sea: 0.6 m (S. Abe, et al., Science, (2006)) Example: