SDSS
catalog data demo, March 30, 2007
3
Jordan Raddick and Ani Thakar
SDSS Data Overview
Data Archive Server
(DAS)
FITS files (raw data)
Images, spectra, corrected
frames, atlas images, binned
images, masks
Online form-based access
Rsync and wget file retrieval
Catalog Archive Server
(CAS)
Science parameters extracted to catalogs
Stuffed into relational DBMS (SQL Server)
Heavily indexed, optimized
Online access via SkyServer
Several levels of access, query tools
SDSS
Data
Release
5 -> 6
