SPE PF output catalog product

Data product name

DpdSpePfOutputCatalog

Data product custodian

Name of the Schema file

euc-spe-SpePfOutputCatalog.xsd

Processing 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:

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

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

18 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_ERROR_FLAG

Processing error flag

FITS I

SPE_WARNING_FLAG

Processing warning flag

FITS I

SPE_CONTEXT_ERROR_FLAG

Context error flag

FITS K

SPE_CLASS_ERROR_FLAG

Classification error flag

FITS K

SPE_STAR_ERROR_FLAG

Star solver error flag

FITS K

SPE_GAL_ERROR_FLAG

Galaxy solver error flag

FITS K

SPE_QSO_ERROR_FLAG

QSO solver error flag

FITS K

SPE_CONTEXT_WARNING_FLAG

Context warning flag

FITS K

SPE_CLASS_WARNING_FLAG

Classification warning flag

FITS K

SPE_STAR_WARNING_FLAG

Star solver warning flag

FITS K

SPE_GAL_WARNING_FLAG

Galaxy solver warning flag

FITS K

SPE_QSO_WARNING_FLAG

QSO warning flag

FITS K

SPE_GRISM

The type of GRISM [BGS/RGS/BGS+RGS]

FITS 8A

SPE_N_DITH

The number of dithers

FITS I

SPE_W_MIN

The minimum wavelength

FITS E

SPE_W_MAX

The maximum wavelength

FITS E

SPE_NPIX

The number of pixels

FITS I

HDU Classification Catalog

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

5 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_STAR_PROB

The probability of the object to be a star

FITS E

SPE_GAL_PROB

The probability of the object to be a galaxy

FITS E

SPE_QSO_PROB

The probability of the object to be a quasar

FITS E

SPE_CLASS

The classification of the object related to highest probability [STAR, GALAXY, QSO, UNDEF]

FITS 8A

HDU GALAXY candidates catalog

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

12 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_Z

The estimated spectroscopic redshift

FITS E

SPE_Z_ERR

The estimated spectroscopic redshift error

FITS E

SPE_Z_PROB

The estimated spectroscopic redshift probability

FITS E

SPE_Z_REL

The reliability of estimated Z

FITS E

SPE_SUBCLASS

The galaxy sub-classification

FITS 48A

SPE_CONT_SNR

Continuum signal to noise ratio

FITS E

SPE_PDF_ZMIN

Minimum redshift of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF_ZMAX

Maxinum redshift of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF_DELTAZ

Redshift step of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF

PDF values

FITS 80E

HDU STAR candidates catalog

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

8 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_RVEL

The estimated radial velocity

FITS E

SPE_RVEL_ERR

The estimated radial velocity error

FITS E

SPE_MODEL_PROB

The estimated star model probability

FITS E

SPE_MODEL_REL

The reliability of estimated star model

FITS E

SPE_SUBCLASS

The star sub-classification

FITS 48A

SPE_CONT_SNR

Continuum signal to noise ratio

FITS E

HDU QSO candidates catalog

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

12 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_Z

The estimated spectroscopic redshift

FITS E

SPE_Z_ERR

The estimated spectroscopic redshift error

FITS E

SPE_Z_PROB

The estimated spectroscopic redshift probability

FITS E

SPE_Z_REL

The reliability of estimated Z

FITS E

SPE_SUBCLASS

The QSO sub-classification

FITS 48A

SPE_CONT_SNR

Continuum signal to noise ratio

FITS E

SPE_PDF_ZMIN

Minimum redshift of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF_ZMAX

Maxinum redshift of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF_DELTAZ

Redshift step of the window Z grid of the redshift candidate PDF

FITS E

SPE_PDF

PDF values

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 the SPE_ERROR_FLAG flag should be equal to 0 (see the table dedicated to SPE_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 the SPE_GAL_ERROR_FLAG flag should be equal to 0 (see the table dedicated to AMAZED_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 the SPE_STAR_ERROR_FLAG flag should be equal to 0 (see the table dedicated to AMAZED_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 the SPE_QSO_ERROR_FLAG flag should be equal to 0 (see the table dedicated to AMAZED_ERROR for more details on the meaning of flag values).

SPE_ERROR_FLAG table

Bit number

Description

0

Error in context stage (see AMAZED_ERROR table)

1

Error in classification stage (see AMAZED_ERROR table)

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,

PDF catalog

This part of the product is a FITS file with 2 binary table extension HDU containing for each spectrum the estimated redshift PDFs (Probability Density Function) galaxies (#HDU1) and QSO (#HDU2). This product is available for DEEP survey only.

Name of file: EUC_SPE_DEEP-CAT-PDF-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU Galaxy Spectroscopic Redshift PDF Catalog

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

25 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_FPZMIN

Minimum redshift of the large step Z grid

FITS E

SPE_FPZMAX

Maximum redshift of the large step Z grid

FITS E

SPE_FPDELZ

Redshift step of the large step Z grid

FITS E

SPE_ZMIN_CD1

Minimum redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZMAX_CD1

Maximum redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZCEN_CD1

Central redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_DELZ_CD1

Redshift step of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZMIN_CD2

Minimum redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZMAX_CD2

Maximum redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZCEN_CD2

Central redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_DELZ_CD2

Redshift step of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZMIN_CD3

Minimum redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZMAX_CD3

Maximum redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZCEN_CD3

Central redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_DELZ_CD3

Redshift step of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZMIN_CD4

Minimum redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZMAX_CD4

Maximum redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZCEN_CD4

Central redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_DELZ_CD4

Redshift step of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZMIN_CD5

Minimum redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_ZMAX_CD5

Maximum redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_ZCEN_CD5

Central redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_DELZ_CD5

Redshift step of the window Z grid of the 5th redshift candidate

FITS E

SPE_PDF

PDF values

FITS 2000E

HDU QSO Spectroscopic Redshift PDF Catalog

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

25 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_FPZMIN

Minimum redshift of the large step Z grid

FITS E

SPE_FPZMAX

Maximum redshift of the large step Z grid

FITS E

SPE_FPDELZ

Redshift step of the large step Z grid

FITS E

SPE_ZMIN_CD1

Minimum redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZMAX_CD1

Maximum redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZCEN_CD1

Central redshift of the window Z grid of the 1st redshift candidate

FITS E

SPE_DELZ_CD1

Redshift step of the window Z grid of the 1st redshift candidate

FITS E

SPE_ZMIN_CD2

Minimum redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZMAX_CD2

Maximum redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZCEN_CD2

Central redshift of the window Z grid of the 2nd redshift candidate

FITS E

SPE_DELZ_CD2

Redshift step of the window Z grid of the 2nd redshift candidate

FITS E

SPE_ZMIN_CD3

Minimum redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZMAX_CD3

Maximum redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZCEN_CD3

Central redshift of the window Z grid of the 3rd redshift candidate

FITS E

SPE_DELZ_CD3

Redshift step of the window Z grid of the 3rd redshift candidate

FITS E

SPE_ZMIN_CD4

Minimum redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZMAX_CD4

Maximum redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZCEN_CD4

Central redshift of the window Z grid of the 4th redshift candidate

FITS E

SPE_DELZ_CD4

Redshift step of the window Z grid of the 4th redshift candidate

FITS E

SPE_ZMIN_CD5

Minimum redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_ZMAX_CD5

Maximum redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_ZCEN_CD5

Central redshift of the window Z grid of the 5th redshift candidate

FITS E

SPE_DELZ_CD5

Redshift step of the window Z grid of the 5th redshift candidate

FITS E

SPE_PDF

PDF values

FITS 2000E

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 Line Catalog

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

31 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_LINE_ID

The associated line ID in the reference line catalog

FITS I

SPE_LINE_FLAG

Flag on line measurement

FITS I

SPE_LINE_NAME

The name of detected line

FITS 12A

SPE_LINE_CENTRAL_WL_GF

The estimated central wavelength of the detected line from Gaussian fit

FITS E

SPE_LINE_CENTRAL_WL_ERR_GF

The error on estimated central wavelength from Gaussian fit

FITS E

SPE_LINE_FLUX_GF

The estimated flux of the detected line from Gaussian fit

FITS E

SPE_LINE_FLUX_ERR_GF

The error on estimated flux of the detected line from Gaussian fit

FITS E

SPE_LINE_EW_GF

The estimated equivalent width of the detected line from Gaussian fit

FITS E

SPE_LINE_EW_ERR_GF

The error on estimated equivalent width of the detected line from Gaussian fit

FITS E

SPE_LINE_FWHM_GF

The estimated FWHM of the detected line from Gaussian fit

FITS E

SPE_LINE_FWHM_ERR_GF

The error on estimated FWHM of the detected line from Gaussian fit

FITS E

SPE_LINE_INTVAR_GF

The integrated variance within 3-sigma of the line from Gaussian fit

FITS E

SPE_LINE_SNR_GF

The signal-to-noise ratio of the line from Gaussian fit

FITS E

SPE_LINE_CONT_GF

The continuum estimated under the line from Gaussian fit

FITS E

SPE_LINE_LUM_GF

The estimated luminosity of the line from Gaussian fit

FITS E

SPE_LINE_LUM_ERR_GF

The error on the estimated luminosity of the line from Gaussian fit

FITS E

SPE_LINE_QUAL_GF

The quality of the measurements from Gaussian fit

FITS I

SPE_LINE_CENTRAL_WL_DI

The estimated central wavelength of the detected line from direct integration

FITS E

SPE_LINE_CENTRAL_WL_ERR_DI

The error on estimated central wavelength from direct integration

FITS E

SPE_LINE_FLUX_DI

The estimated flux of the detected line from direct integration-

FITS E

SPE_LINE_FLUX_ERR_DI

The error on estimated flux of the detected line from direct integration

FITS E

SPE_LINE_EW_DI

The estimated equivalent width of the detected line from direct integration

FITS E

SPE_LINE_EW_ERR_DI

The error on estimated equivalent width of the detected line from direct integration

FITS E

SPE_LINE_SNR_DI

The signal-to-noise ratio of the line from direct integration

FITS E

SPE_LINE_CONT_DI

The continuum estimated under the line from direct integration

FITS E

SPE_LINE_LUM_DI

The estimated luminosity of the line from direct integration

FITS E

SPE_LINE_LUM_ERR_DI

The error on the estimated luminosity of the line from direct integration

FITS E

SPE_LINE_QUAL_DI

The quality of the measurements from direct integration

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

FITS E

HDU Atomic Indices Catalog

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

6 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_AT_IDX_NAME

The name of the atomic Lick index

FITS 12A

SPE_AT_IDX_VAL

The estimated value of the atomic Lick index

FITS E

SPE_AT_IDX_ERR

The error on the estimated value of the atomic Lick index

FITS E

SPE_SPEC_SNR

The estimated value of the spectrum SNR in a TBD window

FITS E

HDU Molecular Indices Catalog

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

6 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_MOL_IDX_NAME

The name of the molecular Lick index

FITS 12A

SPE_MOL_IDX_VAL

The estimated value of the molecular Lick index

FITS E

SPE_MOL_IDX_ERR

The error on the estimated value of the molecular Lick index

FITS E

SPE_SPEC_SNR

The estimated value of the spectrum SNR in a TBD window

FITS E

HDU Continuum Features Catalog

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

6 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_CNT_FEAT_NAME

The name of the molecular Lick index

FITS 12A

SPE_CNT_FEAT_VAL

The estimated value of the molecular Lick index

FITS E

SPE_CNT_FEAT_ERR

The error on the estimated value of the molecular Lick index

FITS E

SPE_SPEC_SNR

The estimated value of the spectrum SNR in a TBD window

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 : Hαα_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

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 Hαα_QSO).

Possible values for the QualFlag:

101, 102, 201, 202, 301, 302

All

1

Good measure

The measure is considered reliable

Possible values for the QualFlag:

111, 112, 211, 212, 311, 312

All

2

Low SNR

The measure might be good but the line has a low SNR. (SNR < 2.0).

Possible values for the QualFlag:

121, 122, 221, 222, 321, 322

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.

Possible values for the QualFlag:

231, 232, 331, 332

GF or Hαα_QSO

5

Acceptable

The measure is acceptable but up to 15% of the pixels within the line are missing.

Possible values for the QualFlag:

251, 252, 351, 352

GF or Hαα_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).

Possible values for the QualFlag:

181, 182, 281, 282, 381, 382

All

9

Outside range

The line is not measurable in the redshift range.

Possible values for the QualFlag:

-91, -92

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

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

4 columns table

Columns

SPE_LINE_ID

ID of the line

FITS I

SPE_LINE_WL

Central wavelength of the line

FITS E

SPE_LINE_NAME

Name of the line

FITS 12A

SPE_LINE_TYPE

Type of line (‘A’: absorption, ‘E’:emission)

FITS A

HDU GALAXY models Catalog

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

21 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_Z

The estimated spectroscopic redshift

FITS E

SPE_CNT_TPL_ID

The continuum template ID

FITS 48A

SPE_CNT_TPL_AMP

The amplitude of continuum template

FITS E

SPE_CNT_IGM_TPL_ID

The IGM template ID

FITS I

SPE_CNT_ISM_COEF

The Ebmv coefficient inside [0.,1.]

FITS E

SPE_TPL_RAT_ID

The template ratio ID

FITS 48A

SPE_TPL_RAT_E_AMP

The amplitude of emission template ratio

FITS E

SPE_TPL_RAT_A_AMP

The amplitude of absorption template ratio

FITS E

SPE_TPL_RAT_ISM_COEFF

The Ebmv coefficient for emission lines inside [0.,1.]

FITS E

SPE_LINES_ID

ID of each line

FITS 60I

SPE_LINES_AMP

The amplitude of each line

FITS 60E

SPE_VEL_DISP_E

The velocity dispersion of emission lines

FITS E

SPE_VEL_DISP_A

The velocity dispersion of absorption lines

FITS E

LYA_OFFSET

The Lya central wavelength offset

FITS E

LYA_WIDTH

The Lya line width

FITS E

LYA_ASSYM_COEF

The alpha coefficient for skewed gaussian Lya model

FITS E

SPE_ICAL_FACTOR_B

The inter-calibration factor between Red and Blue spectra

FITS E

SPE_FLUX_OFFSET_R

The flux offset of the Red spectra

FITS E

SPE_FLUX_OFFSET_B

The flux offset of the Blue spectra

FITS E

HDU STAR models catalog

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

8 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_Z

The estimated spectroscopic redshift

FITS E

SPE_CNT_TPL_ID

The continuum template ID

FITS 48A

SPE_CNT_TPL_AMP

The amplitude of continuum template

FITS E

SPE_ICAL_FACTOR_B

The inter-calibration factor between Red and Blue spectra

FITS E

SPE_FLUX_OFFSET_R

The flux offset of the Red spectra

FITS E

SPE_FLUX_OFFSET_B

The flux offset of the Blue spectra

FITS E

HDU QSO models catalog

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

21 columns table

Columns

OBJ_ID

Unique ID of the object in the survey, as set by MER

FITS K

SPE_RANK

The rank of estimate (i.e. =1 mean best estimate)

FITS I

SPE_Z

The estimated spectroscopic redshift

FITS E

SPE_CNT_TPL_ID

The continuum template ID

FITS 48A

SPE_CNT_TPL_AMP

The amplitude of continuum template

FITS E

SPE_CNT_IGM_TPL_ID

The IGM template ID

FITS I

SPE_CNT_ISM_COEF

The Ebmv coefficient inside [0.,1.]

FITS E

SPE_TPL_RAT_ID

The template ratio ID

FITS I

SPE_TPL_RAT_E_AMP

The amplitude of emission template ratio

FITS E

SPE_TPL_RAT_A_AMP

The amplitude of absorption template ratio

FITS E

SPE_TPL_RAT_ISM_COEFF

The Ebmv coefficient for emission lines inside [0.,1.]

FITS E

SPE_LINES_ID

ID of each line

FITS 60I

SPE_LINES_AMP

The amplitude of each line

FITS 60E

SPE_VEL_DISP_E

The velocity dispersion of emission lines

FITS E

SPE_VEL_DISP_A

The velocity dispersion of absorption lines

FITS E

LYA_OFFSET

The Lya central wavelength offset

FITS E

LYA_WIDTH

The Lya line width

FITS E

LYA_ASSYM_COEF

The alpha coefficient for skewed gaussian Lya model

FITS E

SPE_ICAL_FACTOR_B

The inter-calibration factor between Red and Blue spectra

FITS E

SPE_FLUX_OFFSET_R

The flux offset of the Red spectra

FITS E

SPE_FLUX_OFFSET_B

The flux offset of the Blue spectra

FITS E