SPE PF output catalog product¶
Data product name¶
DpdSpePfOutputCatalog
Data product custodian¶
SPE
Name of the Schema file¶
euc-spe-SpePfOutputCatalog.xsdProcessing Element(s) creating/using the data product¶
Creators:
This product is created by the SPE merge processing element of the SPE PF
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: 25 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_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 |
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: 12 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_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: 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_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 |
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: 12 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_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_FLAG
flag value. The value of theSPE_ERROR_FLAG
flag should be equal to0
(see the table dedicated toSPE_ERROR_FLAG
for more details on the meaning of flag values).For users interested in galaxy solutions, check the
SPE_GAL_ERROR_FLAG
flag value. The value of theSPE_GAL_ERROR_FLAG
flag should be equal to0
(see the table dedicated toAMAZED_ERROR
for more details on the meaning of flag values).For users interested in star solutions, check the value of the
SPE_STAR_ERROR_FLAG
flag. The value of theSPE_STAR_ERROR_FLAG
flag should be equal to0
(see the table dedicated toAMAZED_ERROR
for more details on the meaning of flag values).For users interested in QSO solutions, check the
SPE_QSO_ERROR_FLAG
flag value. The value of theSPE_QSO_ERROR_FLAG
flag should be equal to0
(see the table dedicated toAMAZED_ERROR
for 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: 34 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_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 |