Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh11b1645t&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH11B-1645
Astronomy and Astrophysics
Astrophysics
[1996] Informatics / Web Services, [7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7554] Solar Physics, Astrophysics, And Astronomy / X-Rays, Gamma Rays, And Neutrinos
Scientific paper
The Yohkoh Legacy data Archive (YLA) is a unique source of solar X-ray images and spectra obtained with the Yohkoh satellite(1991-2001). The archive consists of four levels of data products from raw to highly value added, with ample amount of documentation and user-friendly web interface (http://solar.physics.montana.edu/ylegacy). The YLA is also unique in that quality and variety of the products and services have been constantly improved through these nine years after the completion of the satellite mission. Our recent improvements are: (1) Completion of the stray light correction, applied to the data after the SXT entrance filter failure in 1992. (2) Completion of the satellite attitude data correction. (3) E-mail based individual user support (E-consultant service). (4) New FITS header definition with World Coordinate System compliance. (5) Update of SXT response function based on the latest atomic data and models (Chianti 6.0.1). (6) Introduction of a new data category, Level 3, for co-aligned composite images suitable for browsing in movie mode. The main body of our archive (data from the Soft X-ray Telescope) are provided in both Yohkoh-specific (XDA) and FITS formats. The XDA format is convenient for analysis with existing SSW/Yohkoh software that runs under IDL. The more general FITS format enables use of advanced SSW applications developed in the various missions after Yohkoh. FITS products do not specifically require IDL to read and view images, which allows our products to be accessed from a wide range of communities. Our products can be accessed through our quick-look and data-search web services, and also through the Virtual Solar Observatory data search. Since 2009, YLA is funded as one of NASA's Resident Archives in Virtual Observatories for Heliophysics Data program. Through the funds, we take responsibility for maintaining the best corrected data sets, and providing the easy access and user support. The top page of the YLA web interface
Acton Loren W.
Freeland Samuel L.
McKenzie David
Takeda Aki
Yoshimura Kazuyoshi
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