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Date and Time of the Query: 2019-04-19 T14:05:00 PDT
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Diameter data point(s) for object SDSS J082137.25+210658.5

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)
2006SDSS5.C...0000:
10.62 (a) arcsec 6.02 arcsec ... ... ... ... 95.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 21.24 ... 0.57 0.43 0.51 55 95
[J2000]
2 r (SDSS Petrosian)
2006SDSS5.C...0000:
3.23 (a) arcsec ... ... ... 0.18 ... ... ... ... 4.77E+14 6.45 0.37 ... ... ... ... ...
3 r (SDSS de Vaucouleurs)
2006SDSS5.C...0000:
3.96 (a) arcsec ... ... 0.644 (b/a) 0.12 ... ... 78.2
[J2000]
... 4.77E+14 7.92 0.24 0.64 0.36 0.41 50 78
[J2000]
4 r (SDSS Exponential)
2006SDSS5.C...0000:
1.48 (a) arcsec ... ... 0.647 (b/a) 0.03 ... ... 78.2
[J2000]
... 4.77E+14 2.95 0.06 0.65 0.35 0.41 50 78
[J2000]
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
10.62 (a) arcsec 6.02 arcsec ... ... ... ... 95.4
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 21.24 ... 0.57 0.43 0.51 55 95
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
3.23 (a) arcsec ... ... ... 0.184 ... ... ... ... 4.77E+14 6.45 0.37 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
3.9586 (a) arcsec ... ... 0.644 (b/a) 0.120 ... ... 78.2
[J2000]
... 4.77E+14 7.92 0.24 0.64 0.36 0.41 50 78
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
1.4773 (a) arcsec ... ... 0.647 (b/a) 0.030 ... ... 78.2
[J2000]
... 4.77E+14 2.96 0.06 0.65 0.35 0.41 50 78
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2006SDSS5.C...0000:
Published Object Name         : SDSS J082137.26+210658.6      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 10.62      arcsec               2a = 21.24 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =    6.02    arcsec               2b = 12.04 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.57
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.43
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.51
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 55 deg
Position Angle [Equinox]      :   95.4 deg [J2000]                  95 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          : 125.4052277     21.1162682    (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J082137.26+210658.6 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.23 arcsec 2a = 6.45 arcsec Uncertainty : 0.18 arcsec 0.37 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 : 125.4052277 21.1162682 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J082137.26+210658.6 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 3.96 arcsec 2a = 7.92 arcsec Uncertainty : 0.12 arcsec 0.24 arcsec Minor Axis (2b) : ... 2b = 5.10 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.644 b/a = 0.64 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.36 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 125.4052277 21.1162682 (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 : 2006SDSS5.C...0000: Published Object Name : SDSS J082137.26+210658.6 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.48 arcsec 2a = 2.95 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 1.91 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.647 b/a = 0.65 Uncertainty : 0.018 0.02 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 125.4052277 21.1162682 (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 : 2007SDSS6.C...0000: Published Object Name : SDSS J082137.25+210658.5 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 10.62 arcsec 2a = 21.24 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 6.02 arcsec 2b = 12.04 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.57 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.43 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.51 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 95.4 deg [J2000] 95 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 : 125.4052242512 21.1162694471 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J082137.25+210658.5 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 3.23 arcsec 2a = 6.45 arcsec Uncertainty : 0.184 arcsec 0.37 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 : 125.4052242512 21.1162694471 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 7 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J082137.25+210658.5 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 3.9586 arcsec 2a = 7.92 arcsec Uncertainty : 0.120 arcsec 0.24 arcsec Minor Axis (2b) : ... 2b = 5.10 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.644 b/a = 0.64 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.36 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 125.4052242512 21.1162694471 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 8 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J082137.25+210658.5 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 1.4773 arcsec 2a = 2.96 arcsec Uncertainty : 0.030 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 1.91 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.647 b/a = 0.65 Uncertainty : 0.018 0.02 Ellipticity : ... 1 - b/a = 0.35 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.41 Uncertainty : ... ... Cos-1(b/a) : ... 50 deg Position Angle [Equinox] : 78.2 deg [J2000] 78 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 : 125.4052242512 21.1162694471 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius

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