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Date and Time of the Query: 2019-03-24 T16:23:32 PDT
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Diameter data point(s) for object 2MASX J15213123+3045334

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 K_s (2MASS isophotal)
20032MASX.C.......:
10.2 (a) arcsec ... ... 0.380 (b/a) ... ... ... -20
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 20.40 ... 0.38 0.62 0.75 68 160
[J2000]
2 K_s (2MASS "total")
20032MASX.C.......:
21.9 (a) arcsec ... ... 0.380 (b/a) ... ... ... -20
[J2000]
Diameter for "total" magnitude 1.38E+14 43.90 ... 0.38 0.62 0.75 68 160
[J2000]
3 r (SDSS Isophotal)
2005SDSS4.C...0000:
18.28 (a) arcsec 5.10 arcsec ... ... ... ... 162.3
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 36.56 ... 0.28 0.72 0.86 74 162
[J2000]
4 r (SDSS Petrosian)
2005SDSS4.C...0000:
4.16 (a) arcsec ... ... ... 0.58 ... ... ... ... 4.77E+14 8.33 1.15 ... ... ... ... ...
5 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
6.08 (a) arcsec ... ... 0.225 (b/a) 0.11 ... ... 165.9
[J2000]
... 4.77E+14 12.16 0.22 0.23 0.78 0.90 77 166
[J2000]
6 r (SDSS Exponential)
2005SDSS4.C...0000:
2.59 (a) arcsec ... ... 0.226 (b/a) 0.03 ... ... 167.1
[J2000]
... 4.77E+14 5.19 0.06 0.23 0.77 0.90 77 167
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 20032MASX.C.......:
Published Object Name         : 2MASX J15213123+3045334       
Frequency Targeted            : K_s (2MASS isophotal)         
Major Axis (2a)               : a = 10.2       arcsec               2a = 20.40 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : ...                                 2b = 7.75 arcsec
Uncertainty                   : ...                                 ...
Axis Ratio                    : b/a = 0.380                         b/a = 0.38
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.62
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.75
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 68 deg
Position Angle [Equinox]      :  -20   deg [J2000]                  160 deg [J2000]
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : 20.0 K-mag arcsec^-2^         
Frequency                     : 2.17         microns                1.38E+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          : 230.380142      30.759373    (J2000)
Qualifiers                    : From new, raw data
NED Comment                   :                                         

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J15213123+3045334 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 21.9 arcsec 2a = 43.90 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 16.68 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.380 b/a = 0.38 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.62 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.75 Uncertainty : ... ... Cos-1(b/a) : ... 68 deg Position Angle [Equinox] : -20 deg [J2000] 160 deg [J2000] Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Diameter for "total" magnitude Frequency : 2.17 microns 1.38E+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 : 230.380142 30.759373 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J152131.24+304533.9 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 18.28 arcsec 2a = 36.56 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 5.10 arcsec 2b = 10.20 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.28 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.72 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.86 Uncertainty : ... ... Cos-1(b/a) : ... 74 deg Position Angle [Equinox] : 162.3 deg [J2000] 162 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 : 230.3801727 30.7594070 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J152131.24+304533.9 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 4.16 arcsec 2a = 8.33 arcsec Uncertainty : 0.58 arcsec 1.15 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 : 230.3801727 30.7594070 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J152131.24+304533.9 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 6.08 arcsec 2a = 12.16 arcsec Uncertainty : 0.11 arcsec 0.22 arcsec Minor Axis (2b) : ... 2b = 2.74 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.225 b/a = 0.23 Uncertainty : 0.005 0.01 Ellipticity : ... 1 - b/a = 0.78 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 165.9 deg [J2000] 166 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 : 230.3801727 30.7594070 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 6 Published Units: Homogenized Units: Reference Code : 2005SDSS4.C...0000: Published Object Name : SDSS J152131.24+304533.9 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 2.59 arcsec 2a = 5.19 arcsec Uncertainty : 0.03 arcsec 0.06 arcsec Minor Axis (2b) : ... 2b = 1.17 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.226 b/a = 0.23 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.77 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.90 Uncertainty : ... ... Cos-1(b/a) : ... 77 deg Position Angle [Equinox] : 167.1 deg [J2000] 167 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 : 230.3801727 30.7594070 (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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