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Date and Time of the Query: 2019-03-19 T13:42:58 PDT
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Diameter data point(s) for object SDSS J152057.82+303826.3

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:
7.52 (a) arcsec 3.29 arcsec ... ... ... ... 173.1
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 15.04 ... 0.44 0.56 0.68 64 173
[J2000]
2 r (SDSS Petrosian)
2007SDSS6.C...0000:
1.74 (a) arcsec ... ... ... 0.213 ... ... ... ... 4.77E+14 3.48 0.43 ... ... ... ... ...
3 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
1.1717 (a) arcsec ... ... 0.389 (b/a) 0.052 ... ... 168.8
[J2000]
... 4.77E+14 2.34 0.10 0.39 0.61 0.74 67 169
[J2000]
4 r (SDSS Exponential)
2007SDSS6.C...0000:
0.7345 (a) arcsec ... ... 0.417 (b/a) 0.015 ... ... 168.1
[J2000]
... 4.77E+14 1.47 0.03 0.42 0.58 0.70 65 168
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2007SDSS6.C...0000:
Published Object Name         : SDSS J152057.82+303826.3      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 7.52       arcsec               2a = 15.04 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =       3.29 arcsec               2b = 6.58 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.44
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.56
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.68
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 64 deg
Position Angle [Equinox]      :  173.1 deg [J2000]                  173 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          : 230.2409215991  30.6406625030    (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 J152057.82+303826.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 1.74 arcsec 2a = 3.48 arcsec Uncertainty : 0.213 arcsec 0.43 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 : 230.2409215991 30.6406625030 (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 J152057.82+303826.3 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 1.1717 arcsec 2a = 2.34 arcsec Uncertainty : 0.052 arcsec 0.10 arcsec Minor Axis (2b) : ... 2b = 0.91 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.389 b/a = 0.39 Uncertainty : 0.019 0.02 Ellipticity : ... 1 - b/a = 0.61 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.74 Uncertainty : ... ... Cos-1(b/a) : ... 67 deg Position Angle [Equinox] : 168.8 deg [J2000] 169 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 : 230.2409215991 30.6406625030 (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 J152057.82+303826.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.7345 arcsec 2a = 1.47 arcsec Uncertainty : 0.015 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 0.61 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.417 b/a = 0.42 Uncertainty : 0.015 0.01 Ellipticity : ... 1 - b/a = 0.58 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.70 Uncertainty : ... ... Cos-1(b/a) : ... 65 deg Position Angle [Equinox] : 168.1 deg [J2000] 168 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 : 230.2409215991 30.6406625030 (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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