Guadalupe VAC (DR1 Supplement)¶
Overview¶
This page describes the Guadalupe
value-added catalog, which will be
publicly released as part of the DESI Data Release 1 (DESI/DR1) sometime in
2024 (exact date TBD).
Please refer to the Acknowledgments section for the conditions for using this VAC.
Note
We only document the v3.0 version of this VAC; the v1.0 and v2.0 versions have been deprecated and are not documented further.
Data Content & Access¶
Data from the Guadalupe
VAC can be accessed at any of the following links:
Data url |
https://data.desi.lbl.gov/desi/spectro/fastspecfit/guadalupe/v3.0 |
NERSC (for collaborators) |
|
For more information regarding the content and organization of the VAC, please click on the following links:
Summary Statistics¶
The following table summarizes the size and number of targets in each merged catalog.
Note
The last catalog listed in the table is a super-merge of all the preceding catalogs, i.e., a merge over all surveys and programs.
File Name |
File Size |
Number of Targets |
---|---|---|
fastspec-guadalupe-special-dark.fits |
17.4 MB |
3,848 |
fastspec-guadalupe-special-bright.fits |
43.1 MB |
9,598 |
fastspec-guadalupe-main-bright.fits |
4.77 GB |
1,092,041 |
fastspec-guadalupe-main-dark.fits |
4.94 GB |
1,131,858 |
fastspec-guadalupe.fits |
9.79 GB |
2,237,345 |
The following table summarizes the number of QSO targets whose redshift has been updated using the procedure documented here.
Catalog |
Number of Objects |
Number with Corrected Redshifts |
---|---|---|
{fastspec}-guadalupe-main-bright.fits |
1,092,041 |
156 |
{fastspec}-guadalupe-main-dark.fits |
1,131,858 |
22,445 |
{fastspec}-guadalupe-special-bright.fits |
9,598 |
0 |
{fastspec}-guadalupe-special-dark.fits |
3,848 |
111 |
{fastspec}-guadalupe.fits |
2,237,345 |
22,712 |
Known Issues¶
This section documents any issues or problems which were identified with the VAC after its final release.
The tied amplitudes of [OII]7320,7330 doublet were reversed in the line fitting [#119].
To report projects or to request new features please open a ticket.