Tools for data access
Catalog Archive Server (CAS)
- Catalog Archive Server (CAS) The Catalog Archive Server offers efficient search tools for querying the imaging and spectro catalogs from DR1.
Data Archive Server (DAS)
DR1 data are distributed via the Data Archive Server. The DAS
contains
- images of the night sky ("corrected frames")
in fits and jpeg format
- calibrated object lists with photometric
parameters as fits binary tables
- reduced spectra and spectral parameters as fits
binary tables and ps/gif plots
Files and directories within the DAS are designated by survey
identifiers of the desired data:
run/rerun/camcol/field for imaging;
plate/MJD/fiberID for spectroscopy. The easiest way to
obtain this designation is by one of the query forms provided. The DAS is
described in detail on the DAS structure
and contents page.
Search and Retrieve
Retrieve
| DAS retrieval form |
Use query forms above to obtain
survey designation of required data to be uploaded here.
Small result sets will be
returned as .tar or .zip archive; larger sets can be
downloaded using rsync (see rsync help). The coverage page explains runs,
reruns etc.
|
| rsync server |
Recommended way for mirroring the
DR1 data archive in part or whole. The rsync URL is
rsync://dr1@rsync.sdss.org/DR1. See the rsync help page. |
| http access to DAS |
Use your web browser or other http clients like wget.
Recommended options for
wget to mirror entire directories:
--no-host-directories -l inf -r -np --continue
|
| Spectra in bulk |
Get all spectroscopic data, or redshift lists by object type (galaxies, quasars, stars) |
Last modified: Fri Oct 10 10:47:55 CDT 2003
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