Gathering info from SDSS into a VOTable to execute Sextractor, Galfit and Ellipse.
Created: 2012-08-13 11:04:27
Last updated: 2013-03-08 12:09:18
This workflow joins two main nested workflows:
- Extract SDSS field information and PSF, which gathers information from SDSS VO service and from the header image in several VOtable. It alse generate the psf files.
- Joining VOtables with information to execute Sextractor, Galfit and Ellipse, which joins the VOtables generated by the previus workflow to get only one VOtable with all the information
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Workflow Components
Authors (1)
Titles (1)
| Gathering info from SDSS into a VOTable to execute Sextractor, Galfit and Ellipse. |
Descriptions (1)
| This workflow joins two main nested workflows:
- Extract SDSS field information and PSF, which gathers information from SDSS VO service and from the header image in several VOtable. It alse generate the psf files.
- Joining VOtables with information to execute Sextractor, Galfit and Ellipse, which joins the VOtables generated by the previus workflow to get only one VOtable with all the information
|
Dependencies (0)
Inputs (1)
| Name |
Description |
| init_table |
ASCII table with following 10 columns
- RA, DEC: Coordinates of the image.
- RUN, RERUN CAMCOL, FIELD: Info about the field of the image
- PATH_IMAGE: Absolute path file to the fits image file
- BARRED: This column will contain a 0 if the galaxy has no contain a bar and a 1 otherwise
- PATH_PSFIELD: Absolute path where the psfield file will be downloaded
- PATH_PSF: Absolute path where the psf file will be generated
|
Processors (2)
| Name |
Type |
Description |
| Extract_SDSS_field_i |
workflow |
|
| Joining_VOtables_wit |
workflow |
|
Beanshells (6)
| Name |
Description |
Inputs |
Outputs |
| extract_info |
|
lines
|
DECs
RAs
RERUNs
RUNs
CAMCOLs
FIELDs
FILEs
BARREDs
PSFIELDs
PSFs
|
| change_columnName |
|
lines
|
votable
|
| change_columnName2 |
|
lines
|
votable
|
| change_columnName3 |
|
lines
|
votable
|
| change_columnName4 |
|
lines
|
votable
|
| change_columnName4_2 |
|
lines
|
votable
|
Outputs (1)
| Name |
Description |
| VOtable |
VOtable with all the information needed to execute Sextractor, Galfit and ellipse.
The columns of this votable are:
- image: Path of the fits image
- band: Band (g,r,i,z,u) of the image
- cat: File path where sextractor results is allocated.
- sex: File path where the sextractor config file is allocated (one for each galaxy).
- sexparam: File path for general sextractor configuration file (the same for all the galaxies)
- checkimage_name: File path where the sextractor image result is allocated
- galfit: File path where the input for the first galfit execution is allocated.
- galfit_exp: File path where the output for the first galfit execution is allocated.
- galfit2nd: File path where the input for the second galfit execution is allocated.
- galfitgal: File path where the output for the second galfit execution is allocated.
- model: File path where the galfit image result is allocated.
- ellip_tab: File path where the output for the first ellipse execution is allocated.
- ellip_resultheader: File path that contains the column descriptions for the ellipse results (first iteration).
- ellip_resultdata: File path that contains an ascii table with the ellipse results (first iteration).
- ellip_tab2: File path where the output for the second ellipse execution is allocated.
- ellip_resultheader2: File path that contains the column descriptions for the ellipse results (second iteration).
- ellip_resultdata2: File path that contains an ascii table with the ellipse results (second iteration).
- ellip_script1: File path where python the script that is used run pyraf is allocated (first iteration)
- ellip_script2: File path where python the script that is used run pyraf is allocated (second iteration)
- ellip_plot: File path where the plot that represent galfit and ellipse results is allocated.
- psf: Path of the psf file
- ra: Right ascension
- dec: Declination
- saturation: saturation level
- gain:Gain Averaged over Amplifiers
- nx :NAXIS1
- ny: NAXIS2
- bar: 1 or 0, indicating if the galaxy is barred or not.
- aa: Zero-point
- kk: Extinction coefficient
- airmass: Airmass for star at frame center (mid exposure)
- zp: it is calculated as -( aa + kk * airmass )
- mag_zeropoint: It is calculated as zp + 2.5 * log10(53.907456)
|
Datalinks (16)
| Source |
Sink |
| init_table |
Extract_SDSS_field_i:input_table |
| Extract_SDSS_field_i:aa |
Joining_VOtables_wit:aa |
| Extract_SDSS_field_i:airmass |
Joining_VOtables_wit:air |
| Extract_SDSS_field_i:band |
Joining_VOtables_wit:band |
| Extract_SDSS_field_i:bar |
Joining_VOtables_wit:bar |
| Extract_SDSS_field_i:dec |
Joining_VOtables_wit:dec |
| Extract_SDSS_field_i:filenames |
Joining_VOtables_wit:filenames |
| Extract_SDSS_field_i:gain |
Joining_VOtables_wit:gain |
| Extract_SDSS_field_i:image |
Joining_VOtables_wit:image |
| Extract_SDSS_field_i:kk |
Joining_VOtables_wit:kk |
| Extract_SDSS_field_i:nx |
Joining_VOtables_wit:nx |
| Extract_SDSS_field_i:ny |
Joining_VOtables_wit:ny |
| Extract_SDSS_field_i:psf |
Joining_VOtables_wit:psf |
| Extract_SDSS_field_i:ra |
Joining_VOtables_wit:ra |
| Extract_SDSS_field_i:saturation |
Joining_VOtables_wit:satur_level |
| Joining_VOtables_wit:votable |
VOtable |
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licensed under:
Version 2
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