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Date and Time of the Query: 2022-01-19 T08:02:05 PST
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Diameter data point(s) for object SDSS J002301.14+001915.8

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:
1.36 (a) arcsec 1.02 arcsec ... ... ... ... 29.9
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 2.73 ... 0.75 0.25 0.28 41 30
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.46 (a) arcsec ... ... ... 0.102 ... ... ... ... 4.77E+14 0.93 0.20 ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0127 (a) arcsec ... ... 0.365 (b/a) 2.669 ... ... 15.6
[J2000]
... 4.77E+14 0.03 5.34 0.36 0.64 0.76 69 16
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0002 (a) arcsec ... ... 0.487 (b/a) 0.160 ... ... 50.9
[J2000]
... 4.77E+14 0.00 0.32 0.49 0.51 0.62 61 51
[J2000]
5 0.5-7 keV Chandra
2020CSC...C2..0000:
3.11163886 arcsec 3.11163886 arcsec ... 1.88524383 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 3.11 1.89 3.11 -2.11 0.81 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J002301.15+001915.8      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 1.36       arcsec               2a = 2.73 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       1.02 arcsec               2b = 2.05 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.75
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.25
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.28
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 41 deg
Position Angle [Equinox]      :   29.9 deg [J2000]                  30 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          : 5.7547928267    0.3210787824    (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 J002301.15+001915.8 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.46 arcsec 2a = 0.93 arcsec Uncertainty : 0.102 arcsec 0.20 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 : 5.7547928267 0.3210787824 (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 J002301.15+001915.8 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0127 arcsec 2a = 0.03 arcsec Uncertainty : 2.669 arcsec 5.34 arcsec Minor Axis (2b) : ... 2b = 0.01 arcsec Uncertainty : ... 837.25 Axis Ratio : b/a = 0.365 b/a = 0.36 Uncertainty : 156.848 156.85 Ellipticity : ... 1 - b/a = 0.64 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.76 Uncertainty : ... ... Cos-1(b/a) : ... 69 deg Position Angle [Equinox] : 15.6 deg [J2000] 16 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 : 5.7547928267 0.3210787824 (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 J002301.15+001915.8 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0002 arcsec 2a = 0.00 arcsec Uncertainty : 0.160 arcsec 0.32 arcsec Minor Axis (2b) : ... 2b = 0.00 arcsec Uncertainty : ... 48.77 Axis Ratio : b/a = 0.487 b/a = 0.49 Uncertainty : 152.869 152.87 Ellipticity : ... 1 - b/a = 0.51 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.62 Uncertainty : ... ... Cos-1(b/a) : ... 61 deg Position Angle [Equinox] : 50.9 deg [J2000] 51 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 : 5.7547928267 0.3210787824 (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) : 3.11163886 arcsec 2a = 3.11 arcsec Uncertainty : 1.88524383 arcsec 1.89 arcsec Minor Axis (2b) : 2b = 3.11163886 arcsec 2b = 3.11 arcsec Uncertainty : 1.88524383 1.89 Axis Ratio : ... b/a = 3.11 Uncertainty : ... 1.89 Ellipticity : ... 1 - b/a = -2.11 Uncertainty : ... 1.89 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 : 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 :

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