Difference between revisions of "Catalogues"

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The Fits extension is composed by several columns below described:
+
The Fits extension is composed by several columns described below:
  
 
{| border="1"  
 
{| border="1"  
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|-
 
|-
 
|NAME || String || || Source name – see Note 1
 
|NAME || String || || Source name – see Note 1
 +
|-
 +
!colspan="4"|Source Position
 +
|-
 +
|GLON || Real*8 || degrees || Galactic longitude based on extraction algorithm
 +
|-
 +
|GLAT || Real*8 || degrees || Galactic latitude based on extraction algorithm
 +
|-
 +
|RA  || Real*8 || degrees || Right ascension (J2000) transformed from (GLON,GLAT)
 +
|-
 +
|DEC  || Real*8 || degrees || Declination (J2000) transformed from (GLON,GLAT)
 +
|-
 +
!colspan="4"|Photometry
 +
|-
 +
|DETFLUX || Real*4 || mJy || Flux density of source as determined by detection method
 +
|-
 +
|DETFLUX_ERR || Real*4 || mJy || Uncertainty (1 sigma) in derived flux density from detection method
 +
|-
 +
|APERFLUX || Real*4 || mJy || Flux density of source as determined from the aperture photometry
 +
|-
 +
|APERFLUX_ERR || Real*4 || mJy || Uncertainty (1 sigma) in derived flux density from the aperture photometry
 +
|-
 +
|PSFFLUX || Real*4 || mJy || Flux density of source as determined from PSF fitting
 +
|-
 +
|PSFFLUX_ERR || Real*4 || mJy || Uncertainty (1 sigma) in derived flux density from PSF fitting
 +
|-
 +
|GAUFLUX || Real*4 || mJy || Flux density of source as determined from 2-D Gaussian fitting
 +
|-
 +
|GAUFLUX_ERR || Real*4 || mJy || Uncertainty (1 sigma) in derived flux density from 2-D Gaussian fitting
 +
|-
 +
|GAU_SEMI1 || Real*4 || arcmin || Gaussian fit along axis 1
 +
|-
 +
|GAU_SEMI1_ERR || Real*4 || arcmin || Uncertainty (1 sigma) in derived Gaussian fit along axis 1
 +
|-
 +
|GAU_SEMI2 || Real*4 || arcmin || Gaussian fit along axis 2
 +
|-
 +
|GAU_SEMI2_ERR || Real*4 || arcmin || Uncertainty (1 sigma) in derived Gaussian fit along axis 2
 +
|-
 +
|GAU_THETA || Real*4 || deg || Gaussian fit orientation angle counting anti-clockwise from the x -axis
 +
|-
 +
|GAU_THETA_ERR || Real*4 || deg || Uncertainty (1 sigma) in derived gaussian fit orientation angle
 +
|-
 +
|GAU_FWHM_EFF || Real*4 || arcmin || Gaussian fit effective FWHM
 +
|-
 +
!colspan="4"|Flags and validation
 +
|-
 +
|EXTENDED || Integer*2 || || Flag indicated that source is extended
 +
|-
 +
|CIRRUS_N || Integer*4 || || Number of sources detected at 857 GHz within HFI TBC degrees
 +
|-
 +
|EXT_VAL || Integer*2 || || Flag indicated external validation - see Note 2
 +
|-
 +
|ERCSC || String || || Name of the ERCSC counterpart if any
 +
|-
 +
!colspan="4"|ONLY 857 GHz Catalogue
 +
|-
 +
|APERFLUX_217 || Real*4 || mJy || Source flux density at 217 GHz (best estimation) of the object detected at 857
 +
|-
 +
|APERFLUX_ERR_217 || Real*4 || mJy || Uncertainty in source flux density
 +
|-
 +
|APERFLUX_353 || Real*4 || mJy || Source flux density at 353 GHz (best estimation) of the object detected at 857
 +
|-
 +
|APERFLUX_ERR_353 || Real*4 || mJy || Uncertainty in source flux density
 +
|-
 +
|APERFLUX_545 || Real*4 || mJy || Source flux density at 545 GHz (best estimation) of the object detected at 857
 +
|-
 +
|APERFLUX_545 || Real*4 || mJy || Source flux density at 545 GHz (best estimation) of the object detected at 857
 +
|-
 +
|APERFLUX_ERR_545 || Real*4 || mJy || Uncertainty in source flux density
 
|}
 
|}
  
 
+
'''Note 1.-''' Source name designations consist of a prefix and a positional qualifier, the latter
Source Position
 
GLON
 
Real*8
 
degrees
 
Galactic longitude based on extraction algorithm
 
GLAT
 
Real*8
 
degrees
 
Galactic latitude based on extraction algorithm
 
RA
 
Real*8
 
degrees
 
Right ascension (J2000) transformed from (GLON,GLAT)
 
DEC
 
Real*8
 
degrees
 
Declination (J2000) transformed from (GLON,GLAT)
 
Photometry
 
DETFLUX
 
Real*4
 
mJy
 
Flux density of source as determined by detection method
 
DETFLUX_ERR
 
 
 
Real*4
 
mJy
 
Uncertainty (1 sigma) in derived flux density from detection method
 
APERFLUX
 
Real*4
 
mJy
 
Flux density of source as determined from the aperture photometry
 
APERFLUX_ERR
 
Real*4
 
mJy
 
Uncertainty (1 sigma) in derived flux density from the aperture photometry
 
PSFFLUX
 
Real*4
 
mJy
 
Flux density of source as determined from PSF fitting
 
PSFFLUX_ERR
 
Real*4
 
mJy
 
Uncertainty (1 sigma) in derived flux density from PSF fitting
 
GAUFLUX
 
Real*4
 
mJy
 
Flux density of source as determined from 2-D Gaussian fitting
 
GAUFLUX_ERR
 
Real*4
 
mJy
 
Uncertainty (1 sigma) in derived flux density from 2-D Gaussian fitting
 
GAU_SEMI1
 
Real*4
 
arcmin
 
Gaussian fit along axis 1
 
GAU_SEMI1_ERR
 
Real*4
 
arcmin
 
Uncertainty (1 sigma) in derived Gaussian fit along axis 1
 
GAU_SEMI2
 
Real*4
 
arcmin
 
Gaussian fit along axis 2
 
GAU_SEMI2_ERR
 
Real*4
 
arcmin
 
Uncertainty (1 sigma) in derived Gaussian fit along axis 2
 
GAU_THETA
 
Real*4
 
deg
 
Gaussian fit orientation angle counting anti-clockwise from the x -axis
 
GAU_THETA_ERR
 
Real*4
 
deg
 
Uncertainty (1 sigma) in derived gaussian fit orientation angle
 
GAU_FWHM_EFF
 
Real*4
 
arcmin
 
Gaussian fit effective FWHM
 
Flags and validation
 
EXTENDED
 
Integer*2
 
-
 
Flag indicated that source is extended
 
CIRRUS_N
 
Integer*4
 
 
 
Number of sources detected at 857 GHz within HFI TBC degrees
 
EXT_VAL
 
Integer*2
 
-
 
Flag indicated external validation - see Note 2
 
ERCSC
 
String
 
-
 
Name of the ERCSC counterpart if any
 
ONLY 857 GHz Catalogue
 
APERFLUX_217
 
Real*4
 
mJy
 
Source flux density at 217 GHz (best estimation) of the object detected at 857
 
APERFLUX_ERR_217
 
Real*4
 
mJy
 
Uncertainty in source flux density
 
APERFLUX_353
 
Real*4
 
mJy
 
Source flux density at 353 GHz (best estimation) of the object detected at 857
 
APERFLUX_ERR_353
 
Real*4
 
mJy
 
Uncertainty in source flux density
 
APERFLUX_545
 
Real*4
 
mJy
 
Source flux density at 545 GHz (best estimation) of the object detected at 857
 
APERFLUX_ERR_545
 
Real*4
 
mJy
 
Uncertainty in source flux density
 
 
 
Note 1. Source name designations consist of a prefix and a positional qualifier, the latter
 
 
is in Galactic coordinates and specified as "Glll.ll±bb.bb" where the (l,b) values are truncated. The prefix used in the single band portion of the PCCS is PLCKddd PCCS catalogue at ddd GHz .
 
is in Galactic coordinates and specified as "Glll.ll±bb.bb" where the (l,b) values are truncated. The prefix used in the single band portion of the PCCS is PLCKddd PCCS catalogue at ddd GHz .
 
For example, a source detected at (l,b) = (120.237, 4.231) in the 545 GHz Planck map would be labelled PLCK545 G120.23±04.23.
 
For example, a source detected at (l,b) = (120.237, 4.231) in the 545 GHz Planck map would be labelled PLCK545 G120.23±04.23.
  
Note 2. The EXTENDED flag has the value of 0 if the source is compact and the value
+
'''Note 2.-''' The EXTENDED flag has the value of 0 if the source is compact and the value
 
of 1 is it extended. The source size is determined by the geometric mean of the Gaussian
 
of 1 is it extended. The source size is determined by the geometric mean of the Gaussian
 
fit FWHMs, with the criteria for extension being sqrt(GAU_FWHMMAJ *
 
fit FWHMs, with the criteria for extension being sqrt(GAU_FWHMMAJ *
 
GAU_FWHMIN) > 1.5 times the beam FWHM.
 
GAU_FWHMIN) > 1.5 times the beam FWHM.
  
Note 3. The EXT_VAL flag has the value of 0, 1, or 2, based on the following
+
'''Note 3.-''' The EXT_VAL flag has the value of 0, 1, or 2, based on the following
 
conditions:
 
conditions:
 
2 – The source has a clear counterpart in one of the catalogues considered as ancillary data.
 
2 – The source has a clear counterpart in one of the catalogues considered as ancillary data.
 
1 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data but it has been detected by the internal multi-frequency method.
 
1 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data but it has been detected by the internal multi-frequency method.
 
0 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data and it has NOT been detected by the internal multi-frequency method.
 
0 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data and it has NOT been detected by the internal multi-frequency method.

Revision as of 13:02, 30 November 2012

Planck Catalogue of Compact Sources[edit]

The PCCS source list in each frequency is structured as a FITS binary table having one row for each detected source.

The FITS primary header will have the following structure:

FITS primary header
FITS Keyword Data Type Units Description
INSTRUME String LFI or HFI
VERSION String Version of PCCS
DATE String Date file created:yyyy-mm-dd
ORIGIN String Name of organization responsible for the data (LFI-DPCHFI-DPC)
TELESCOP String PLANCK
CREATOR String Pipeline Version
DATE-OBS String days Start-up time of the survey: yyyy-mm-dd
DATE-END String days Ending time of the survey: yyyy-mm-dd


The Fits extension is composed by several columns described below:

FITS header
Column Name Data Type Units Description
Identification
NAME String Source name – see Note 1
Source Position
GLON Real*8 degrees Galactic longitude based on extraction algorithm
GLAT Real*8 degrees Galactic latitude based on extraction algorithm
RA Real*8 degrees Right ascension (J2000) transformed from (GLON,GLAT)
DEC Real*8 degrees Declination (J2000) transformed from (GLON,GLAT)
Photometry
DETFLUX Real*4 mJy Flux density of source as determined by detection method
DETFLUX_ERR Real*4 mJy Uncertainty (1 sigma) in derived flux density from detection method
APERFLUX Real*4 mJy Flux density of source as determined from the aperture photometry
APERFLUX_ERR Real*4 mJy Uncertainty (1 sigma) in derived flux density from the aperture photometry
PSFFLUX Real*4 mJy Flux density of source as determined from PSF fitting
PSFFLUX_ERR Real*4 mJy Uncertainty (1 sigma) in derived flux density from PSF fitting
GAUFLUX Real*4 mJy Flux density of source as determined from 2-D Gaussian fitting
GAUFLUX_ERR Real*4 mJy Uncertainty (1 sigma) in derived flux density from 2-D Gaussian fitting
GAU_SEMI1 Real*4 arcmin Gaussian fit along axis 1
GAU_SEMI1_ERR Real*4 arcmin Uncertainty (1 sigma) in derived Gaussian fit along axis 1
GAU_SEMI2 Real*4 arcmin Gaussian fit along axis 2
GAU_SEMI2_ERR Real*4 arcmin Uncertainty (1 sigma) in derived Gaussian fit along axis 2
GAU_THETA Real*4 deg Gaussian fit orientation angle counting anti-clockwise from the x -axis
GAU_THETA_ERR Real*4 deg Uncertainty (1 sigma) in derived gaussian fit orientation angle
GAU_FWHM_EFF Real*4 arcmin Gaussian fit effective FWHM
Flags and validation
EXTENDED Integer*2 Flag indicated that source is extended
CIRRUS_N Integer*4 Number of sources detected at 857 GHz within HFI TBC degrees
EXT_VAL Integer*2 Flag indicated external validation - see Note 2
ERCSC String Name of the ERCSC counterpart if any
ONLY 857 GHz Catalogue
APERFLUX_217 Real*4 mJy Source flux density at 217 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_217 Real*4 mJy Uncertainty in source flux density
APERFLUX_353 Real*4 mJy Source flux density at 353 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_353 Real*4 mJy Uncertainty in source flux density
APERFLUX_545 Real*4 mJy Source flux density at 545 GHz (best estimation) of the object detected at 857
APERFLUX_545 Real*4 mJy Source flux density at 545 GHz (best estimation) of the object detected at 857
APERFLUX_ERR_545 Real*4 mJy Uncertainty in source flux density

Note 1.- Source name designations consist of a prefix and a positional qualifier, the latter is in Galactic coordinates and specified as "Glll.ll±bb.bb" where the (l,b) values are truncated. The prefix used in the single band portion of the PCCS is PLCKddd PCCS catalogue at ddd GHz . For example, a source detected at (l,b) = (120.237, 4.231) in the 545 GHz Planck map would be labelled PLCK545 G120.23±04.23.

Note 2.- The EXTENDED flag has the value of 0 if the source is compact and the value of 1 is it extended. The source size is determined by the geometric mean of the Gaussian fit FWHMs, with the criteria for extension being sqrt(GAU_FWHMMAJ * GAU_FWHMIN) > 1.5 times the beam FWHM.

Note 3.- The EXT_VAL flag has the value of 0, 1, or 2, based on the following conditions: 2 – The source has a clear counterpart in one of the catalogues considered as ancillary data. 1 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data but it has been detected by the internal multi-frequency method. 0 – The source has NOT a clear counterpart in one of the catalogues considered as ancillary data and it has NOT been detected by the internal multi-frequency method.

Flexible Image Transfer Specification

(Planck) Low Frequency Instrument

(Planck) High Frequency Instrument

Data Processing Center

Full-Width-at-Half-Maximum

To be confirmed

Early Release Compact Source Catalog