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Date and Time of the Query: 2022-01-26 T12:23:48 PST
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Diameter data point(s) for object WISE J080949.18+521858.2

Diameter Data --- Published and Homogenized (arcsec) Units

  Published UnitsHomogenized Units
No.Observed Passband
REFCODE
Major Axis
(2a)
Major Axis UnitsMinor Axis
(2b)
Minor Axis UnitsAxis Ratio (b/a)Major Axis Unc.Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
Position Angle
(deg)
[published]
Reference LevelFrequency (Hz)Major Axis
(2a)
(arcsec)
Major Axis Unc.Axis Ratio (b/a)Ellipticity
(1 - b/a)
Eccentricity
[(a/b)2-1]/
[(a/b)2+1]
cos-1(b/a)
(deg)
Position Angle
(deg)
[J2000]
1 r (SDSS Isophotal)
2007SDSS6.C...0000:
8.86 (a) arcsec 8.15 arcsec ... ... ... ... 50.5
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 17.72 ... 0.92 0.08 0.08 23 51
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.61 (a) arcsec ... ... ... 0.002 ... ... ... ... 4.77E+14 1.21 0.00 ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0683 (a) arcsec ... ... 0.910 (b/a) 0.002 ... ... 135.1
[J2000]
... 4.77E+14 0.14 0.00 0.91 0.09 0.09 24 135
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0846 (a) arcsec ... ... 0.994 (b/a) 0.003 ... ... 105.6
[J2000]
... 4.77E+14 0.17 0.01 0.99 0.01 0.01 6 106
[J2000]
5 0.5-7 keV Chandra
2020CSC...C2..0000:
1.60122231 arcsec 1.60122231 arcsec ... 0.59262696 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 1.60 0.59 1.60 -0.60 0.44 0 0
[J2000]
6 0.2-0.5 keV Chandra
2020CSC...C2..0000:
5.56709898 arcsec 5.56709898 arcsec ... 0.76451532 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.67E+16 5.57 0.76 5.57 -4.57 0.94 0 0
[J2000]
7 0.5-1.2 keV Chandra
2020CSC...C2..0000:
3.04688954 arcsec 3.04688954 arcsec ... 0.52603744 ... ... 0.0
[J2000]
extent deconvolved with PSF 2.22E+17 3.05 0.53 3.05 -2.05 0.81 0 0
[J2000]
8 1.2-2 keV Chandra
2020CSC...C2..0000:
3.11990876 arcsec 3.11990876 arcsec ... 0.45121270 ... ... 0.0
[J2000]
extent deconvolved with PSF 3.77E+17 3.12 0.45 3.12 -2.12 0.81 0 0
[J2000]
9 2-7 keV Chandra
2020CSC...C2..0000:
5.55980668 arcsec 5.55980668 arcsec ... 1.44373548 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.19E+17 5.56 1.44 5.56 -4.56 0.94 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J080949.18+521858.2      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 8.86       arcsec               2a = 17.72 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       8.15 arcsec               2b = 16.30 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.92
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.08
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.08
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 23 deg
Position Angle [Equinox]      :   50.5 deg [J2000]                  51 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : 25.0 mag arcsec^-2^           
Frequency                     : 6290         A                      4.77E+14 Hz
Frequency Mode                : Broad-band detector (e.g. photographic plate)

Measurement Mode               
    Detector Type             : Maps (e.g., 2MASS, VLA, Sloan)
    Fitting Technique         : Ellipse fitting to image
    Measured Quantity         : Isophotal diameter
    Qualifiers                : A radius is given in DIA_MAJ, not a diameter
Coordinates Targeted          : 122.4549394065  52.3161926251    (J2000)
Qualifiers                    : From new, raw data; DIA_MAJ or DIA_MIN modified from
                               published data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080949.18+521858.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.61 arcsec 2a = 1.21 arcsec Uncertainty : 0.002 arcsec 0.00 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Profile fitting to image Measured Quantity : See comments Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 122.4549394065 52.3161926251 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080949.18+521858.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0683 arcsec 2a = 0.14 arcsec Uncertainty : 0.002 arcsec 0.00 arcsec Minor Axis (2b) : ... 2b = 0.12 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.910 b/a = 0.91 Uncertainty : 0.035 0.04 Ellipticity : ... 1 - b/a = 0.09 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : 135.1 deg [J2000] 135 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 122.4549394065 52.3161926251 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 4 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J080949.18+521858.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0846 arcsec 2a = 0.17 arcsec Uncertainty : 0.003 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.17 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.994 b/a = 0.99 Uncertainty : 0.044 0.04 Ellipticity : ... 1 - b/a = 0.01 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.01 Uncertainty : ... ... Cos-1(b/a) : ... 6 deg Position Angle [Equinox] : 105.6 deg [J2000] 106 deg [J2000] Uncertainty : ... ... Significance : Based on count statistics only Diameter Reference Level : ... Frequency : 6290 A 4.77E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Ellipse fitting to image Measured Quantity : Half-light ("effective") diameter Qualifiers : A radius is given in DIA_MAJ, not a diameter Coordinates Targeted : 122.4549394065 52.3161926251 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 5 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-7 keV Chandra Major Axis (2a) : 1.60122231 arcsec 2a = 1.60 arcsec Uncertainty : 0.59262696 arcsec 0.59 arcsec Minor Axis (2b) : 2b = 1.60122231 arcsec 2b = 1.60 arcsec Uncertainty : 0.59262696 0.59 Axis Ratio : ... b/a = 1.60 Uncertainty : ... 0.59 Ellipticity : ... 1 - b/a = -0.60 Uncertainty : ... 0.59 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.44 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 2.3 keV 5.56E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.2-0.5 keV Chandra Major Axis (2a) : 5.56709898 arcsec 2a = 5.57 arcsec Uncertainty : 0.76451532 arcsec 0.76 arcsec Minor Axis (2b) : 2b = 5.56709898 arcsec 2b = 5.57 arcsec Uncertainty : 0.76451532 0.76 Axis Ratio : ... b/a = 5.57 Uncertainty : ... 0.76 Ellipticity : ... 1 - b/a = -4.57 Uncertainty : ... 0.76 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.94 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.4 keV 9.67E+16 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-1.2 keV Chandra Major Axis (2a) : 3.04688954 arcsec 2a = 3.05 arcsec Uncertainty : 0.52603744 arcsec 0.53 arcsec Minor Axis (2b) : 2b = 3.04688954 arcsec 2b = 3.05 arcsec Uncertainty : 0.52603744 0.53 Axis Ratio : ... b/a = 3.05 Uncertainty : ... 0.53 Ellipticity : ... 1 - b/a = -2.05 Uncertainty : ... 0.53 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.92 keV 2.22E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 8 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 1.2-2 keV Chandra Major Axis (2a) : 3.11990876 arcsec 2a = 3.12 arcsec Uncertainty : 0.45121270 arcsec 0.45 arcsec Minor Axis (2b) : 2b = 3.11990876 arcsec 2b = 3.12 arcsec Uncertainty : 0.45121270 0.45 Axis Ratio : ... b/a = 3.12 Uncertainty : ... 0.45 Ellipticity : ... 1 - b/a = -2.12 Uncertainty : ... 0.45 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.81 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 1.56 keV 3.77E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 2-7 keV Chandra Major Axis (2a) : 5.55980668 arcsec 2a = 5.56 arcsec Uncertainty : 1.44373548 arcsec 1.44 arcsec Minor Axis (2b) : 2b = 5.55980668 arcsec 2b = 5.56 arcsec Uncertainty : 1.44373548 1.44 Axis Ratio : ... b/a = 5.56 Uncertainty : ... 1.44 Ellipticity : ... 1 - b/a = -4.56 Uncertainty : ... 1.44 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.94 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 3.8 keV 9.19E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :

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