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Date and Time of the Query: 2022-01-17 T18:43:02 PST
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Diameter data point(s) for object WISEA J122556.21+130656.3

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)
2005SDSS4.C...0000:
2.92 (a) arcsec 2.16 arcsec ... ... ... ... 169.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 5.84 ... 0.74 0.26 0.29 42 170
[J2000]
2 r (SDSS Petrosian)
2005SDSS4.C...0000:
0.58 (a) arcsec ... ... ... 0.01 ... ... ... ... 4.77E+14 1.15 0.03 ... ... ... ... ...
3 r (SDSS de Vaucouleurs)
2005SDSS4.C...0000:
0.04 (a) arcsec ... ... 0.944 (b/a) 0.01 ... ... 103.4
[J2000]
... 4.77E+14 0.08 0.01 0.94 0.06 0.06 19 103
[J2000]
4 r (SDSS Exponential)
2005SDSS4.C...0000:
0.06 (a) arcsec ... ... 0.929 (b/a) 0.02 ... ... 103.0
[J2000]
... 4.77E+14 0.12 0.03 0.93 0.07 0.07 22 103
[J2000]
5 r (SDSS Isophotal)
2007SDSS6.C...0000:
2.92 (a) arcsec 2.16 arcsec ... ... ... ... 169.6
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 5.84 ... 0.74 0.26 0.29 42 170
[J2000]
6 r (SDSS Petrosian)
2007SDSS6.C...0000:
0.58 (a) arcsec ... ... ... 0.013 ... ... ... ... 4.77E+14 1.15 0.03 ... ... ... ... ...
7 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
0.0402 (a) arcsec ... ... 0.944 (b/a) 0.007 ... ... 103.4
[J2000]
... 4.77E+14 0.08 0.01 0.94 0.06 0.06 19 103
[J2000]
8 r (SDSS Exponential)
2007SDSS6.C...0000:
0.0593 (a) arcsec ... ... 0.929 (b/a) 0.016 ... ... 103.0
[J2000]
... 4.77E+14 0.12 0.03 0.93 0.07 0.07 22 103
[J2000]
9 0.5-7 keV Chandra
2020CSC...C2..0000:
12.9919315 arcsec 12.9919315 arcsec ... 2.18281133 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 12.99 2.18 12.99 -11.99 0.99 0 0
[J2000]
10 0.2-0.5 keV Chandra
2020CSC...C2..0000:
26.6951928 arcsec 26.6951928 arcsec ... 4.89214775 ... ... 0.0
[J2000]
extent deconvolved with PSF 9.67E+16 26.70 4.89 26.70 -25.70 1.00 0 0
[J2000]
11 0.5-1.2 keV Chandra
2020CSC...C2..0000:
2.13589244 arcsec 2.13589244 arcsec ... 0.83832103 ... ... 0.0
[J2000]
extent deconvolved with PSF 2.22E+17 2.14 0.84 2.14 -1.14 0.64 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2005SDSS4.C...0000:
Published Object Name         : SDSS J122556.21+130656.3      
Frequency Targeted            : r (SDSS Isophotal)            
Major Axis (2a)               : a = 2.92       arcsec               2a = 5.84 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : b =    2.16    arcsec               2b = 4.32 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.74
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.26
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.29
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 42 deg
Position Angle [Equinox]      :  169.6 deg [J2000]                  170 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          : 186.4842224     13.1156254    (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 J122556.21+130656.3 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.58 arcsec 2a = 1.15 arcsec Uncertainty : 0.01 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 : 186.4842224 13.1156254 (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 J122556.21+130656.3 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 0.04 arcsec 2a = 0.08 arcsec Uncertainty : 0.01 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.944 b/a = 0.94 Uncertainty : 0.312 0.31 Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 19 deg Position Angle [Equinox] : 103.4 deg [J2000] 103 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 : 186.4842224 13.1156254 (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 J122556.21+130656.3 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.06 arcsec 2a = 0.12 arcsec Uncertainty : 0.02 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 0.11 arcsec Uncertainty : ... 0.01 Axis Ratio : b/a = 0.929 b/a = 0.93 Uncertainty : 0.272 0.27 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 103.0 deg [J2000] 103 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 : 186.4842224 13.1156254 (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 J122556.21+130656.2 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 2.92 arcsec 2a = 5.84 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 2.16 arcsec 2b = 4.32 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.74 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.26 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.29 Uncertainty : ... ... Cos-1(b/a) : ... 42 deg Position Angle [Equinox] : 169.6 deg [J2000] 170 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 : 186.4842249088 13.1156248826 (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 J122556.21+130656.2 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 0.58 arcsec 2a = 1.15 arcsec Uncertainty : 0.013 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 : 186.4842249088 13.1156248826 (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 J122556.21+130656.2 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 0.0402 arcsec 2a = 0.08 arcsec Uncertainty : 0.007 arcsec 0.01 arcsec Minor Axis (2b) : ... 2b = 0.08 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.944 b/a = 0.94 Uncertainty : 0.312 0.31 Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 19 deg Position Angle [Equinox] : 103.4 deg [J2000] 103 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 : 186.4842249088 13.1156248826 (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 J122556.21+130656.2 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 0.0593 arcsec 2a = 0.12 arcsec Uncertainty : 0.016 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 0.11 arcsec Uncertainty : ... 0.01 Axis Ratio : b/a = 0.929 b/a = 0.93 Uncertainty : 0.272 0.27 Ellipticity : ... 1 - b/a = 0.07 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.07 Uncertainty : ... ... Cos-1(b/a) : ... 22 deg Position Angle [Equinox] : 103.0 deg [J2000] 103 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 : 186.4842249088 13.1156248826 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 9 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-7 keV Chandra Major Axis (2a) : 12.9919315 arcsec 2a = 12.99 arcsec Uncertainty : 2.18281133 arcsec 2.18 arcsec Minor Axis (2b) : 2b = 12.9919315 arcsec 2b = 12.99 arcsec Uncertainty : 2.18281133 2.18 Axis Ratio : ... b/a = 12.99 Uncertainty : ... 2.18 Ellipticity : ... 1 - b/a = -11.99 Uncertainty : ... 2.18 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.99 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 2.3 keV 5.56E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.2-0.5 keV Chandra Major Axis (2a) : 26.6951928 arcsec 2a = 26.70 arcsec Uncertainty : 4.89214775 arcsec 4.89 arcsec Minor Axis (2b) : 2b = 26.6951928 arcsec 2b = 26.70 arcsec Uncertainty : 4.89214775 4.89 Axis Ratio : ... b/a = 26.70 Uncertainty : ... 4.89 Ellipticity : ... 1 - b/a = -25.70 Uncertainty : ... 4.89 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 1.00 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.4 keV 9.67E+16 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :
No. 11 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-1.2 keV Chandra Major Axis (2a) : 2.13589244 arcsec 2a = 2.14 arcsec Uncertainty : 0.83832103 arcsec 0.84 arcsec Minor Axis (2b) : 2b = 2.13589244 arcsec 2b = 2.14 arcsec Uncertainty : 0.83832103 0.84 Axis Ratio : ... b/a = 2.14 Uncertainty : ... 0.84 Ellipticity : ... 1 - b/a = -1.14 Uncertainty : ... 0.84 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.64 Uncertainty : ... ... Cos-1(b/a) : ... 0 deg Position Angle [Equinox] : 0.0 deg [J2000] 0 deg [J2000] Uncertainty : ... ... Significance : 68% confidence Diameter Reference Level : extent deconvolved with PSF Frequency : 0.92 keV 2.22E+17 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Maps (e.g., 2MASS, VLA, Sloan) Fitting Technique : Deconvolved from beam (Gaussian deconvolution) Measured Quantity : Unspecified in paper Coordinates Targeted : Qualifiers : From new, raw data NED Comment :

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