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Date and Time of the Query: 2019-03-19 T22:14:22 PDT
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Diameter data point(s) for object 2MASS J15211971+3038373

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)
2005SDSS4.C...0000:
6.36 (a) arcsec 4.28 arcsec ... ... ... ... 173.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 12.73 ... 0.67 0.33 0.38 48 173
[J2000]
2 r (SDSS Petrosian)
2005SDSS4.C...0000:
0.91 (a) arcsec ... ... ... 0.02 ... ... ... ... 4.77E+14 1.82 0.03 ... ... ... ... ...
3 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
0.40 (a) arcsec ... ... 0.634 (b/a) 0.01 ... ... 174.0
[J2000]
... 4.77E+14 0.79 0.02 0.63 0.37 0.43 51 174
[J2000]
4 r (SDSS Exponential)
2005SDSS4.C...0000:
0.36 (a) arcsec ... ... 0.666 (b/a) 0.00 ... ... 172.6
[J2000]
... 4.77E+14 0.73 0.01 0.67 0.33 0.39 48 173
[J2000]
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
6.36 (a) arcsec 4.28 arcsec ... ... ... ... 173.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 12.73 ... 0.67 0.33 0.38 48 173
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.91 (a) arcsec ... ... ... 0.015 ... ... ... ... 4.77E+14 1.82 0.03 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.3975 (a) arcsec ... ... 0.634 (b/a) 0.009 ... ... 174.0
[J2000]
... 4.77E+14 0.80 0.02 0.63 0.37 0.43 51 174
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
0.3645 (a) arcsec ... ... 0.666 (b/a) 0.003 ... ... 172.6
[J2000]
... 4.77E+14 0.73 0.01 0.67 0.33 0.39 48 173
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2005SDSS4.C...0000:
Published Object Name         : SDSS J152119.73+303837.2      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 6.36       arcsec               2a = 12.73 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =    4.28    arcsec               2b = 8.57 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.67
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.33
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.38
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 48 deg
Position Angle [Equinox]      :  173.0 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          : 230.3322144     30.6436691    (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J152119.73+303837.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.91 arcsec 2a = 1.82 arcsec Uncertainty : 0.02 arcsec 0.03 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 : 230.3322144 30.6436691 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J152119.73+303837.2 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 0.40 arcsec 2a = 0.79 arcsec Uncertainty : 0.01 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 0.50 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.634 b/a = 0.63 Uncertainty : 0.015 0.01 Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 174.0 deg [J2000] 174 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 : 230.3322144 30.6436691 (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 : 2005SDSS4.C...0000: Published Object Name : SDSS J152119.73+303837.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.36 arcsec 2a = 0.73 arcsec Uncertainty : 0.00 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.666 b/a = 0.67 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.39 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 172.6 deg [J2000] 173 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 : 230.3322144 30.6436691 (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 J152119.73+303837.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 6.36 arcsec 2a = 12.73 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 4.28 arcsec 2b = 8.56 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.67 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.38 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 173.0 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 : 230.3322090918 30.6436672758 (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 J152119.73+303837.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.91 arcsec 2a = 1.82 arcsec Uncertainty : 0.015 arcsec 0.03 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 : 230.3322090918 30.6436672758 (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 J152119.73+303837.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.3975 arcsec 2a = 0.80 arcsec Uncertainty : 0.009 arcsec 0.02 arcsec Minor Axis (2b) : ... 2b = 0.50 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.634 b/a = 0.63 Uncertainty : 0.015 0.01 Ellipticity : ... 1 - b/a = 0.37 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.43 Uncertainty : ... ... Cos-1(b/a) : ... 51 deg Position Angle [Equinox] : 174.0 deg [J2000] 174 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 : 230.3322090918 30.6436672758 (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 J152119.73+303837.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.3645 arcsec 2a = 0.73 arcsec Uncertainty : 0.003 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.666 b/a = 0.67 Uncertainty : 0.012 0.01 Ellipticity : ... 1 - b/a = 0.33 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.39 Uncertainty : ... ... Cos-1(b/a) : ... 48 deg Position Angle [Equinox] : 172.6 deg [J2000] 173 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 : 230.3322090918 30.6436672758 (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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