SPE PF output catalog product¶
Metadata¶
Data product name |
DpdSpePfOutputCatalog |
Data product custodian |
SPE |
Name of the Schema file |
|
Processing Element(s) creating/using the data product |
Creators:
which merges the outputs of the SPE process spectra and SPE feature measurements processing elements. |
Processing function using the data product |
LE3 PF is using SPE PF output product. |
Data product elements¶
Header |
object of type sys:genericHeader |
Data |
object of type spe:spePfOutputCatalog |
QualityFlags |
object of type dqc:sqfPlaceHolder |
Parameters |
object of type ppr:genericKeyValueParameters |
Detailed description of the data product¶
- The information carried by this product are split in 4 FITS files:
The Redshift catalog
The PDF catalog
The Lines catalog
The Models catalog
They are described in details bellow:
Redshift catalog¶
This part of the product is a FITS file with 5 binary table extension HDUs.
For each spectrum the first extension (HDU#1) contains several quality flags. For processed spectra, the second extension (HDU#2) contains the classification information. Other extensions contain up to 5 redshift candidates for galaxy (HDU#3), 1 relative velocity candidate for star (HDU#4) and up to 5 redshift candidates for QSO (HDU#5).
Name of file:
EUC_SPE_WIDE-CAT-Z-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits
Structure of file:
HDU QUALITY: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
HDU QUALITY: 30 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_ERROR_FLAG |
Processing error flag |
NA |
FITS I |
|
SPE_WARNING_FLAG |
Processing warning flag |
NA |
FITS I |
|
SPE_CONTEXT_ERROR_FLAG |
Context error flag |
NA |
FITS K |
|
SPE_CLASS_ERROR_FLAG |
Classification error flag |
NA |
FITS K |
|
SPE_STAR_ERROR_FLAG |
Star solver error flag |
NA |
FITS K |
|
SPE_GAL_ERROR_FLAG |
Galaxy solver error flag |
NA |
FITS K |
|
SPE_QSO_ERROR_FLAG |
QSO solver error flag |
NA |
FITS K |
|
SPE_CONTEXT_WARNING_FLAG |
Context warning flag |
NA |
FITS K |
|
SPE_CLASS_WARNING_FLAG |
Classification warning flag |
NA |
FITS K |
|
SPE_STAR_WARNING_FLAG |
Star solver warning flag |
NA |
FITS K |
|
SPE_GAL_WARNING_FLAG |
Galaxy solver warning flag |
NA |
FITS K |
|
SPE_QSO_WARNING_FLAG |
QSO warning flag |
NA |
FITS K |
|
SPE_GAL_CONT_MIN_REDUCED_CHI2 |
Min over all z of continuum reduced chisquare for galaxy model |
NA |
FITS E |
|
SPE_GAL_CONT_MAX_P_VALUE |
Max over all z of continuum p-value for galaxy model |
NA |
FITS E |
|
SPE_GAL_CONT_MIN_RESIDUAL_NORMALITY |
Min over all z of continuum residual normality test for galaxy model |
NA |
FITS E |
|
SPE_GAL_CONT_REMOVED |
True if spectrum is median-filtered |
NA |
FITS L |
|
SPE_GRISM |
The type of GRISM [BGS/RGS/BGS|RGS] |
NA |
FITS 8A |
|
SPE_W_MIN |
The minimum wavelength |
Angstrom |
FITS E |
|
SPE_W_MAX |
The maximum wavelength |
Angstrom |
FITS E |
|
SPE_NPIX |
The number of pixels |
NA |
FITS I |
|
SPE_N_DITH_MAX |
Maximum number of dithers |
NA |
FITS I |
|
SPE_N_DITH_MED |
Median number of dithers |
NA |
FITS I |
|
SPE_N_DITH_RED_L |
Number of dithers in red computed by SPE at wavelength low |
NA |
FITS I |
|
SPE_N_DITH_RED_M |
Number of dithers in red computed by SPE at wavelength middle |
NA |
FITS I |
|
SPE_N_DITH_RED_H |
Number of dithers in red computed by SPE at wavelength high |
NA |
FITS I |
|
SPE_N_DITH_BLUE_L |
Number of dithers in blue computed by SPE at wavelength low |
NA |
FITS I |
|
SPE_N_DITH_BLUE_M |
Number of dithers in blue computed by SPE at wavelength middle |
NA |
FITS I |
|
SPE_N_DITH_BLUE_H |
Number of dithers in blue computed by SPE at wavelength high |
NA |
FITS I |
|
SPE_LSF |
Standard deviation of the Gaussian Line Spread Function model |
Angstrom |
FITS E |
|
HDU CLASSIFICATION_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
HDU CLASSIFICATION_CATALOG: 5 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_STAR_PROB |
The probability of the object to be a star |
NA |
FITS E |
|
SPE_GAL_PROB |
The probability of the object to be a galaxy |
NA |
FITS E |
|
SPE_QSO_PROB |
The probability of the object to be a quasar |
NA |
FITS E |
|
SPE_CLASS |
The classification of the object related to highest probability [STAR, GALAXY, QSO, UNDEF] |
NA |
FITS 8A |
|
HDU GALAXY_CANDIDATES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
HDU GALAXY_CANDIDATES_CATALOG: 18 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_Z |
The estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_Z_ERR |
Uncertainty on estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_Z_PROB |
The estimated spectroscopic redshift probability |
NA |
FITS E |
|
SPE_Z_REL |
The reliability of estimated Z |
NA |
FITS E |
|
SPE_SUBCLASS |
The galaxy sub-classification |
NA |
FITS 48A |
|
SPE_CONT_SNR |
Continuum signal to noise ratio |
NA |
FITS E |
|
SPE_Z_REDUCED_CHI2 |
Reduced Chisquare at the estimated z |
NA |
FITS E |
|
SPE_Z_CONT_REDUCED_CHI2 |
Continuum Reduced Chisquare at the estimated z |
NA |
FITS E |
|
SPE_Z_P_VALUE |
P-Value at the estimated z |
NA |
FITS E |
|
SPE_Z_CONT_P_VALUE |
Continuum P-Value at the estimated z |
NA |
FITS E |
|
SPE_Z_RESIDUAL_NORMALITY |
Residual normality test (eg Kolmogorov-Smirnov) at the estimated z |
NA |
FITS E |
|
SPE_Z_CONT_RESIDUAL_NORMALITY |
Continuum residual Normality test (eg Kolmogorov-Smirnov) at the estimated z |
NA |
FITS E |
|
SPE_PDF_ZMIN |
Minimum redshift of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF_ZMAX |
Maxinum redshift of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF_DELTAZ |
Redshift step of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF |
PDF values |
NA |
FITS 80E |
|
HDU STAR_CANDIDATES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
HDU STAR_CANDIDATES_CATALOG: 11 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_RVEL |
The estimated radial velocity |
km/s |
FITS E |
|
SPE_RVEL_ERR |
Uncertainty on estimated radial velocity error |
km/s |
FITS E |
|
SPE_MODEL_PROB |
The estimated star model probability |
NA |
FITS E |
|
SPE_MODEL_REL |
The reliability of estimated star model |
NA |
FITS E |
|
SPE_SUBCLASS |
The star sub-classification |
NA |
FITS 48A |
|
SPE_CONT_SNR |
Continuum signal to noise ratio |
NA |
FITS E |
|
SPE_REDUCED_CHI2 |
Reduced Chisquare at the estimated Vrel |
NA |
FITS E |
|
SPE_P_VALUE |
P-Value at the estimated Vrel |
NA |
FITS E |
|
SPE_RESIDUAL_NORMALITY |
Residual normality test (eg Kolmogorov-Smirnov) at the estimated Vrel |
NA |
FITS E |
|
HDU QSO_CANDIDATES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
HDU QSO_CANDIDATES_CATALOG: 15 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_Z |
The estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_Z_ERR |
Uncertainty on estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_Z_PROB |
The estimated spectroscopic redshift probability |
NA |
FITS E |
|
SPE_Z_REL |
The reliability of estimated Z |
NA |
FITS E |
|
SPE_SUBCLASS |
The QSO sub-classification |
NA |
FITS 48A |
|
SPE_CONT_SNR |
Continuum signal to noise ratio |
NA |
FITS E |
|
SPE_Z_REDUCED_CHI2 |
Reduced Chisquare at the estimated z |
NA |
FITS E |
|
SPE_Z_P_VALUE |
P-Value at the estimated z |
NA |
FITS E |
|
SPE_Z_RESIDUAL_NORMALITY |
Residual normality test (eg Kolmogorov-Smirnov) at the estimated z |
NA |
FITS E |
|
SPE_PDF_ZMIN |
Minimum redshift of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF_ZMAX |
Maxinum redshift of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF_DELTAZ |
Redshift step of the window Z grid of the redshift candidate PDF |
NA |
FITS E |
|
SPE_PDF |
PDF values |
NA |
FITS 80E |
|
Quality flag for redshift catalog
The quality of the redshift estimate must be interpreted differently depending on whether the user is interested in a specific type of object. Indeed, for a user interested in Halpha emitters, the failure of the star classification algorithm may not be a significant quality criterion. Users are therefore advised to :
Check the
SPE_ERROR_FLAGflag value. The value of theSPE_ERROR_FLAGflag should be equal to0(see the table dedicated toSPE_ERROR_FLAGfor more details on the meaning of flag values).For users interested in galaxy solutions, check the
SPE_GAL_ERROR_FLAGflag value. The value of theSPE_GAL_ERROR_FLAGflag should be equal to0(see the table dedicated toAMAZED_ERRORfor more details on the meaning of flag values).For users interested in star solutions, check the value of the
SPE_STAR_ERROR_FLAGflag. The value of theSPE_STAR_ERROR_FLAGflag should be equal to0(see the table dedicated toAMAZED_ERRORfor more details on the meaning of flag values).For users interested in QSO solutions, check the
SPE_QSO_ERROR_FLAGflag value. The value of theSPE_QSO_ERROR_FLAGflag should be equal to0(see the table dedicated toAMAZED_ERRORfor more details on the meaning of flag values).
SPE_ERROR_FLAG table
Bit number |
Description |
|---|---|
0 |
Error in context stage (see |
1 |
Error in classification stage (see |
2 |
Unable to read the SIR combined spectrum product |
3 |
Empty spectrum in the SIR combined spectrum product |
4 |
NaN values detected in the SIR combined spectrum product |
5 |
Different data array (lambda, flux, err, …) size after filtering |
6 |
Short size spectrum |
AMAZED_ERROR table
Err number |
Description |
|---|---|
1 |
INTERNAL_ERROR, |
2 |
EXTERNAL_LIB_ERROR, |
3 |
INVALID_SPECTRA_FLUX, |
4 |
INVALID_NOISE, |
5 |
SMALL_WAVELENGTH_RANGE, |
6 |
NEGATIVE_CONTINUUMFIT, |
7 |
BAD_CONTINUUMFIT, |
8 |
NULL_AMPLITUDES, |
9 |
PEAK_NOT_FOUND_PDF, |
10 |
MAX_AT_BORDER_PDF, |
11 |
MISSING_PARAMETER, |
12 |
BAD_PARAMETER_VALUE, |
13 |
UNKNOWN_ATTRIBUTE, |
14 |
BAD_LINECATALOG, |
15 |
BAD_LOGSAMPLEDSPECTRUM, |
16 |
BAD_COUNTMATCH, |
17 |
BAD_TEMPLATECATALOG, |
18 |
INVALID_SPECTRUM, |
19 |
OVERLAPFRACTION_NOTACCEPTABLE, |
20 |
DZ_NOT_COMPUTABLE, |
21 |
INCOHERENT_INPUTPARAMETERS, |
22 |
BAD_CALZETTICORR, |
23 |
SPECTRUM_NOT_LOADED, |
24 |
MULTILSF_NOT_HANDLED, |
25 |
UNALLOWED_DUPLICATES, |
26 |
UNSORTED_ARRAY, |
27 |
INVALID_DIRECTORY, |
28 |
INVALID_FILEPATH, |
29 |
INVALID_PARAMETER, |
30 |
MISSING_CONFIG_OPTION, |
31 |
BAD_FILEFORMAT, |
32 |
INCOHERENT_CONFIG_OPTIONS, |
33 |
ATTRIBUTE_NOT_SUPPORTED, |
34 |
INCOMPATIBLE_PDF_MODELSHAPES, |
35 |
UNKNOWN_RESULT_TYPE, |
36 |
RELIABILITY_NEEDS_TENSORFLOW, |
37 |
OUTPUT_READER_ERROR, |
38 |
PYTHON_API_ERROR, |
39 |
INVALID_NAME, |
40 |
INVALID_FILTER_INSTRUCTION, |
41 |
INVALID_FILTER_KEY, |
42 |
NO_CLASSIFICATION, |
43 |
INVALID_PARAMETER_FILE, |
Lines catalog¶
This part of the product is a FITS file with 4 binary table extension HDU containing for each spectrum the spectral line measurements (#HDU1), the measurement of absorption Atomic indices (HDU#2), absorption molecular indices (HDU#3) and Continuum features (HDU#4).
Name of file:
EUC_SPE_WIDE-CAT-LIN-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits
Structure of file:
HDU SPECTRAL_LINES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
EXTNAME |
name of extension |
string |
|
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
FSCALE |
Scaling factor for flux unit |
double |
|
HDU SPECTRAL_LINES_CATALOG: 35 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_LINE_ID |
The associated line ID in the reference line catalog |
NA |
FITS I |
|
SPE_LINE_FLAG |
Flag on line measurement |
NA |
FITS I |
|
SPE_LINE_NAME |
The name of detected line |
NA |
FITS 12A |
|
SPE_LINE_N_DITH |
Number of dithers on the line |
NA |
FITS I |
|
SPE_LINE_CENTRAL_WL_GF |
The estimated central wavelength of the detected line from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_CENTRAL_WL_ERR_GF |
The error on estimated central wavelength from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_FLUX_GF |
The estimated flux of the detected line from Gaussian fit |
erg/s/cm2 |
FITS E |
|
SPE_LINE_FLUX_ERR_GF |
The error on estimated flux of the detected line from Gaussian fit |
erg/s/cm2 |
FITS E |
|
SPE_LINE_EW_GF |
The estimated equivalent width of the detected line from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_EW_ERR_GF |
The error on estimated equivalent width of the detected line from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_FWHM_GF |
The estimated FWHM of the detected line from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_FWHM_ERR_GF |
The error on estimated FWHM of the detected line from Gaussian fit |
Angstrom |
FITS E |
|
SPE_LINE_INTVAR_GF |
The integrated variance within 3-sigma of the line from Gaussian fit |
erg2/s2/cm4 |
FITS E |
|
SPE_LINE_SNR_GF |
The signal-to-noise ratio of the line from Gaussian fit |
NA |
FITS E |
|
SPE_LINE_CONT_GF |
The continuum estimated under the line from Gaussian fit |
erg/s/cm2 |
FITS E |
|
SPE_LINE_CONT_ERR_GF |
The error on the continuum estimated under the line from Gaussian fit |
erg/s/cm2 |
FITS E |
|
SPE_LINE_TOTAL_FLUX_ERR_GF |
The error on estimated flux of the related complex lines from Gaussian fit |
erg/s/cm2 |
FITS E |
|
SPE_LINE_LUM_GF |
The estimated luminosity of the line from Gaussian fit |
erg/s |
FITS D |
|
SPE_LINE_LUM_ERR_GF |
The error on the estimated luminosity of the line from Gaussian fit |
erg/s |
FITS D |
|
SPE_LINE_QUAL_GF |
The quality of the measurements from Gaussian fit |
NA |
FITS I |
|
SPE_LINE_CENTRAL_WL_DI |
The estimated central wavelength of the detected line from direct integration |
Angstrom |
FITS E |
|
SPE_LINE_CENTRAL_WL_ERR_DI |
The error on estimated central wavelength from direct integration |
Angstrom |
FITS E |
|
SPE_LINE_FLUX_DI |
The estimated flux of the detected line from direct integration- |
erg/s/cm2 |
FITS E |
|
SPE_LINE_FLUX_ERR_DI |
The error on estimated flux of the detected line from direct integration |
erg/s/cm2 |
FITS E |
|
SPE_LINE_EW_DI |
The estimated equivalent width of the detected line from direct integration |
Angstrom |
FITS E |
|
SPE_LINE_EW_ERR_DI |
The error on estimated equivalent width of the detected line from direct integration |
Angstrom |
FITS E |
|
SPE_LINE_SNR_DI |
The signal-to-noise ratio of the line from direct integration |
NA |
FITS E |
|
SPE_LINE_CONT_DI |
The continuum estimated under the line from direct integration |
erg/s/cm2 |
FITS E |
|
SPE_LINE_CONT_ERR_DI |
The error on the continuum estimated under the line from direct integration |
erg/s/cm2 |
FITS E |
|
SPE_LINE_LUM_DI |
The estimated luminosity of the line from direct integration |
erg/s |
FITS D |
|
SPE_LINE_LUM_ERR_DI |
The error on the estimated luminosity of the line from direct integration |
erg/s |
FITS D |
|
SPE_LINE_QUAL_DI |
The quality of the measurements from direct integration |
NA |
FITS I |
|
SPE_LINE_AON |
The amplitude over Noise of the line, estimated as the ratio of the peak of the line divided by the average rms close to the line |
NA |
FITS E |
|
HDU ATOMIC_INDICES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU ATOMIC_INDICES_CATALOG: 6 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_AT_IDX_NAME |
The name of the atomic Lick index |
NA |
FITS 12A |
|
SPE_AT_IDX_VAL |
The estimated value of the atomic Lick index |
Angstrom |
FITS E |
|
SPE_AT_IDX_ERR |
The error on the estimated value of the atomic Lick index |
Angstrom |
FITS E |
|
SPE_SPEC_SNR |
The estimated value of the spectrum SNR in a TBD window |
NA |
FITS E |
|
HDU MOLECULAR_INDICES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU MOLECULAR_INDICES_CATALOG: 6 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_MOL_IDX_NAME |
The name of the molecular Lick index |
NA |
FITS 12A |
|
SPE_MOL_IDX_VAL |
The estimated value of the molecular Lick index |
mag |
FITS E |
|
SPE_MOL_IDX_ERR |
The error on the estimated value of the molecular Lick index |
mag |
FITS E |
|
SPE_SPEC_SNR |
The estimated value of the spectrum SNR in a TBD window |
NA |
FITS E |
|
HDU CONTINUUM_FEATURES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU CONTINUUM_FEATURES_CATALOG: 6 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_CNT_FEAT_NAME |
The name of the molecular Lick index |
NA |
FITS 12A |
|
SPE_CNT_FEAT_VAL |
The estimated value of the molecular Lick index |
NA |
FITS E |
|
SPE_CNT_FEAT_ERR |
The error on the estimated value of the molecular Lick index |
NA |
FITS E |
|
SPE_SPEC_SNR |
The estimated value of the spectrum SNR in a TBD window |
NA |
FITS E |
|
Quality flag for lines catalog
The quality flag is always an integer number composed by 3 digits, respectively indicating (from left to right) measure type, measure quality and grism used. It is applicable to Direct Integration and Gaussian Fits methods.
The 1st digit can be:
1 : Direct Integration
2 : Gaussian Fit
3 : Hα_GF for QSOs
“-” : the line is outside the redshift range
The 2nd digit can assume one of the following values :
0, 1, 2, 3, 5, 8, 9 (see table bellow)
The 3rd digit can be :
1 : Blue grism
2 : Red grism
3 : Blue and red grism
6 : Blue grism and is the best one
7 : Red grism and is the best one
8 : Blue and red grism and is the best one
Second digit table
2nd digit |
Definition |
Description |
Applicable to |
|---|---|---|---|
0 |
Not measured |
The standard pipeline does not provide a measurement (for DI) or a fit (for GF or Hα_QSO).
|
All |
1 |
Good measure |
The measure is considered reliable
|
All |
2 |
Low SNR |
The measure might be good but the line has a low SNR. (SNR < 2.0).
|
All |
3 |
EW > 0 |
The EW has a positive value (probably due to a negative continuum). The value is set to zero but the other measures (e.g. fluxes) are however reported.
|
GF or Hα_QSO |
5 |
Acceptable |
The measure is acceptable but up to 15% of the pixels within the line are missing.
|
GF or Hα_QSO |
8 |
Unreliable or wrong fluxes |
The measure is unreliable because more than 15% of the pixels are missing (GF or QSO) or it’s wrong because more than 1 pixel is missing (DI).
|
All |
9 |
Outside range |
The line is not measurable in the redshift range.
|
All |
Models catalog¶
This part of the product is a FITS file with 4 binary table extension HDUs containing for each spectrum the parameters required for building spectrum model of each galaxy candidates (HDU#2), star candidate (HDU#3) and QSO candidates (HDU#4). Line catalog is also given (HDU#1)
Name of file:
EUC_SPE_WIDE-CAT-MOD-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits
Structure of file:
HDU LINES_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU LINES_CATALOG: 4 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
SPE_LINE_ID |
ID of the line |
NA |
FITS I |
SPE_LINE_WL |
Central wavelength of the line |
Angstrom |
FITS E |
|
SPE_LINE_NAME |
Name of the line |
NA |
FITS 12A |
|
SPE_LINE_TYPE |
Type of line (‘A’: absorption, ‘E’:emission) |
NA |
FITS A |
|
HDU GALAXY_MODELS_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU GALAXY_MODELS_CATALOG: 22 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_Z |
The estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_CNT_TPL_ID |
The continuum template ID |
NA |
FITS 48A |
|
SPE_CNT_TPL_AMP |
The amplitude of continuum template |
NA |
FITS E |
|
SPE_CNT_IGM_TPL_ID |
The IGM template ID |
NA |
FITS I |
|
SPE_CNT_ISM_COEF |
The Ebmv coefficient inside [0.,1.] |
NA |
FITS E |
|
SPE_TPL_RAT_ID |
The template ratio ID |
NA |
FITS 48A |
|
SPE_TPL_RAT_E_AMP |
The amplitude of emission template ratio |
erg/s/cm2/Angstrom |
FITS E |
|
SPE_TPL_RAT_A_AMP |
The amplitude of absorption template ratio |
NA |
FITS E |
|
SPE_TPL_RAT_ISM_COEFF |
The Ebmv coefficient for emission lines inside [0.,1.] |
NA |
FITS E |
|
SPE_LINES_ID |
ID of each line |
NA |
FITS 60I |
|
SPE_LINES_AMP |
The amplitude of each line |
erg/s/cm2/Angstrom |
FITS 60E |
|
SPE_VEL_DISP_E |
The velocity dispersion of emission lines |
km/s |
FITS E |
|
SPE_VEL_DISP_A |
The velocity dispersion of absorption lines |
km/s |
FITS E |
|
SPE_LYA_OFFSET |
The Lya central wavelength offset |
Angstrom |
FITS E |
|
SPE_LYA_WIDTH |
The Lya line width |
Angstrom |
FITS E |
|
SPE_LYA_ASSYM_COEF |
The alpha coefficient for skewed gaussian Lya model |
NA |
FITS E |
|
SPE_LYA_IGM |
The IGM Lya model |
NA |
FITS E |
|
SPE_ICAL_FACTOR_B |
The inter-calibration factor between Red and Blue spectra |
NA |
FITS E |
|
SPE_FLUX_OFFSET_R |
The flux offset of the Red spectra |
erg/s/cm2/Angstrom |
FITS E |
|
SPE_FLUX_OFFSET_B |
The flux offset of the Blue spectra |
erg/s/cm2/Angstrom |
FITS E |
|
HDU STAR_MODELS_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU STAR_MODELS_CATALOG: 8 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_Z |
The estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_CNT_TPL_ID |
The continuum template ID |
NA |
FITS 48A |
|
SPE_CNT_TPL_AMP |
The amplitude of continuum template |
NA |
FITS E |
|
SPE_ICAL_FACTOR_B |
The inter-calibration factor between Red and Blue spectra |
NA |
FITS E |
|
SPE_FLUX_OFFSET_R |
The flux offset of the Red spectra |
erg/s/cm2/Angstrom |
FITS E |
|
SPE_FLUX_OFFSET_B |
The flux offset of the Blue spectra |
erg/s/cm2/Angstrom |
FITS E |
|
HDU QSO_MODELS_CATALOG: header |
|||
|---|---|---|---|
Name |
Description |
Value |
|
Keywords |
XTENSION |
shall contain BINTABLE |
string |
BITPIX |
shall contain 8 |
integer |
|
NAXIS |
shall contain 2 |
integer |
|
NAXIS1 |
number of 8-bit bytes in each row |
integer |
|
NAXIS2 |
number of rows |
integer |
|
PCOUNT |
shall contain 0 |
integer |
|
GCOUNT |
shall contain 1 |
integer |
|
TFIELDS |
number of fields in each row |
integer |
|
EXTNAME |
name of extension |
string |
|
HDU QSO_MODELS_CATALOG: 22 columns table |
||||
|---|---|---|---|---|
Name |
Description |
Unit |
Format |
|
Columns |
OBJECT_ID |
Unique ID of the object in the survey, as set by MER |
NA |
FITS K |
SPE_RANK |
The rank of estimate (0=best candidate) |
NA |
FITS I |
|
SPE_Z |
The estimated spectroscopic redshift |
NA |
FITS E |
|
SPE_CNT_TPL_ID |
The continuum template ID |
NA |
FITS 48A |
|
SPE_CNT_TPL_AMP |
The amplitude of continuum template |
NA |
FITS E |
|
SPE_CNT_IGM_TPL_ID |
The IGM template ID |
NA |
FITS I |
|
SPE_CNT_ISM_COEF |
The Ebmv coefficient inside [0.,1.] |
NA |
FITS E |
|
SPE_TPL_RAT_ID |
The template ratio ID |
NA |
FITS I |
|
SPE_TPL_RAT_E_AMP |
The amplitude of emission template ratio |
erg/s/cm2/Angstrom |
FITS E |
|
SPE_TPL_RAT_A_AMP |
The amplitude of absorption template ratio |
NA |
FITS E |
|
SPE_TPL_RAT_ISM_COEFF |
The Ebmv coefficient for emission lines inside [0.,1.] |
NA |
FITS E |
|
SPE_LINES_ID |
ID of each line |
NA |
FITS 60I |
|
SPE_LINES_AMP |
The amplitude of each line |
erg/s/cm2/Angstrom |
FITS 60E |
|
SPE_VEL_DISP_E |
The velocity dispersion of emission lines |
km/s |
FITS E |
|
SPE_VEL_DISP_A |
The velocity dispersion of absorption lines |
km/s |
FITS E |
|
SPE_LYA_OFFSET |
The Lya central wavelength offset |
Angstrom |
FITS E |
|
SPE_LYA_WIDTH |
The Lya line width |
Angstrom |
FITS E |
|
SPE_LYA_ASSYM_COEF |
The alpha coefficient for skewed gaussian Lya model |
NA |
FITS E |
|
SPE_LYA_IGM |
The IGM Lya model |
NA |
FITS E |
|
SPE_ICAL_FACTOR_B |
The inter-calibration factor between Red and Blue spectra |
NA |
FITS E |
|
SPE_FLUX_OFFSET_R |
The flux offset of the Red spectra |
erg/s/cm2/Angstrom |
FITS E |
|
SPE_FLUX_OFFSET_B |
The flux offset of the Blue spectra |
erg/s/cm2/Angstrom |
FITS E |
|