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Date and Time of the Query: 2019-02-18 T03:21:51 PST
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Diameter data point(s) for object 2MASS J12204785+1018030

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)
2004SDSS3.C...0000:
6.69 (a) arcsec 3.87 arcsec ... ... ... ... 57.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 13.38 ... 0.58 0.42 0.50 55 57
[J2000]
2 r (SDSS Petrosian)
2004SDSS3.C...0000:
1.65 (a) arcsec ... ... ... 0.05 ... ... ... ... 4.77E+14 3.30 0.09 ... ... ... ... ...
3 r (SDSS de Vaucouleurs)
2004SDSS3.C...0000:
1.59 (a) arcsec ... ... 0.400 (b/a) 0.09 ... ... 54.6
[J2000]
... 4.77E+14 3.18 0.17 0.40 0.60 0.72 66 55
[J2000]
4 r (SDSS Exponential)
2004SDSS3.C...0000:
0.92 (a) arcsec ... ... 0.437 (b/a) 0.02 ... ... 54.2
[J2000]
... 4.77E+14 1.84 0.04 0.44 0.56 0.68 64 54
[J2000]
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
6.69 (a) arcsec 3.87 arcsec ... ... ... ... 57.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 13.38 ... 0.58 0.42 0.50 55 57
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
1.65 (a) arcsec ... ... ... 0.047 ... ... ... ... 4.77E+14 3.29 0.09 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
1.5898 (a) arcsec ... ... 0.400 (b/a) 0.085 ... ... 54.6
[J2000]
... 4.77E+14 3.18 0.17 0.40 0.60 0.72 66 55
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
0.9195 (a) arcsec ... ... 0.437 (b/a) 0.019 ... ... 54.2
[J2000]
... 4.77E+14 1.84 0.04 0.44 0.56 0.68 64 54
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2004SDSS3.C...0000:
Published Object Name         : SDSS J122047.86+101802.9      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 6.69       arcsec               2a = 13.38 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =    3.87    arcsec               2b = 7.74 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.58
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.42
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.50
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 55 deg
Position Angle [Equinox]      :   57.3 deg [J2000]                  57 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          : 185.1994324     10.3008184    (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J122047.86+101802.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 1.65 arcsec 2a = 3.30 arcsec Uncertainty : 0.05 arcsec 0.09 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 : 185.1994324 10.3008184 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J122047.86+101802.9 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 1.59 arcsec 2a = 3.18 arcsec Uncertainty : 0.09 arcsec 0.17 arcsec Minor Axis (2b) : ... 2b = 1.27 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.400 b/a = 0.40 Uncertainty : 0.020 0.02 Ellipticity : ... 1 - b/a = 0.60 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.72 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 54.6 deg [J2000] 55 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 : 185.1994324 10.3008184 (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 : 2004SDSS3.C...0000: Published Object Name : SDSS J122047.86+101802.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.92 arcsec 2a = 1.84 arcsec Uncertainty : 0.02 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 0.80 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.437 b/a = 0.44 Uncertainty : 0.017 0.02 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] : 54.2 deg [J2000] 54 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 : 185.1994324 10.3008184 (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 J122047.86+101802.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 6.69 arcsec 2a = 13.38 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 3.87 arcsec 2b = 7.74 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.58 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.42 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.50 Uncertainty : ... ... Cos-1(b/a) : ... 55 deg Position Angle [Equinox] : 57.3 deg [J2000] 57 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 : 185.1994386109 10.3008188115 (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 J122047.86+101802.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 1.65 arcsec 2a = 3.29 arcsec Uncertainty : 0.047 arcsec 0.09 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 : 185.1994386109 10.3008188115 (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 J122047.86+101802.9 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 1.5898 arcsec 2a = 3.18 arcsec Uncertainty : 0.085 arcsec 0.17 arcsec Minor Axis (2b) : ... 2b = 1.27 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.400 b/a = 0.40 Uncertainty : 0.020 0.02 Ellipticity : ... 1 - b/a = 0.60 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.72 Uncertainty : ... ... Cos-1(b/a) : ... 66 deg Position Angle [Equinox] : 54.6 deg [J2000] 55 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 : 185.1994386109 10.3008188115 (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 J122047.86+101802.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.9195 arcsec 2a = 1.84 arcsec Uncertainty : 0.019 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 0.80 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.437 b/a = 0.44 Uncertainty : 0.017 0.02 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] : 54.2 deg [J2000] 54 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 : 185.1994386109 10.3008188115 (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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