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Data ARchives and Transmission System (DARTS) is a multi-disciplinary space science data archive for, e.g., astrophysics, solar physics, solar-terrestrial physics, lunar and planetary science, and microgravity science. Please read "About DARTS".


News & Announcements

The URL of SMILES has been changed.

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Old Website Address (URL) :/iss/smiles
New Website Address (URL) :/stp/smiles 

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(18 Aug. 2017) For maintenance activities, web service becomes unavailable for several minutes in the following periods. We are sorry for your inconvenience.
2017-8-21 10:00 -- 10:30 (JST)

Old News & Announcements


Recent Topics

Plasma waves, sounder, and electron number density data from Ohzora (EXOS-C) and Jikiken (EXOS-B) released

These days, it is getting common that data taken by scientific satellite are archived, and that the data source is required to be expressed explicitly for publication in academic journals. On the other hand, for the past scientific satellites whose project teams were terminated, the data products were often dead-stored in magnetic tapes or old storages in project member's laboratories. Therefore, ISAS is trying to collect those data taken by past ISAS missions and kept in Japanese universities, and release them from DARTS. Plasma waves, sounder, and electron number density data from the Jikiken (launched in 1976) and Ohzora (launched in 1984) satellites, which had been dead-stored for long time, were converted into Common Data Format (CDF), and archived in DARTS, in collaboration with Tohoku university. These data are now released via DARTS/Ohzora and DARTS/Jikiken. They can be displayed, e.g., by Autoplot and SPEDAS as shown in the right-hand side (typical example of echoes from topside ionosphere detected by Ohzora sounder). (May 2017)


Experimental data of Hayabusa2 laser altimeter (LIDAR) in the laser link experiment released

Experimental data of Hayabusa2 laser altimeter (LIDAR) in the laser link experiment have been released, which were used in the refereed article shown below. In principle, the LIDAR measures the distance between the spacecraft and the asteroid surface. In this experiment, however, the instrument was operated most of the time in the "laser link mode", in which the LIDAR receives the laser pulses from the ground first, and then it emits the pulses backward. General description on the experiment is given in the Hayabusa2 project site , and details of the results are in the open-access journal page. (Image credit: NAOJ/NICT/JAXA/CIT/SERC/NEC, Noda et al.) (April 2017)


Old Topics

Last Modified: 24 July 2017