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Date and Time of the Query: 2019-06-20 T04:49:11 PDT
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Diameter data point(s) for object NGC 5831

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 POSS1 103a-O
1973UGC...C...0000N
2.00 arcmin 1.80 arcmin ... ... ... ... ... About 25.0 B-mag arcsec^-2^ 7.40E+14 120.00 ... 0.90 0.10 0.10 26 ...
2 K_s (2MASS isophotal)
20032MASX.C.......:
48.3 (a) arcsec ... ... 0.940 (b/a) ... ... ... -30
[J2000]
20.0 K-mag arcsec^-2^ 1.38E+14 96.60 ... 0.94 0.06 0.06 20 150
[J2000]
3 K_s (2MASS "total")
20032MASX.C.......:
69.2 (a) arcsec ... ... 0.940 (b/a) ... ... ... -30
[J2000]
Diameter for "total" magnitude 1.38E+14 138.30 ... 0.94 0.06 0.06 20 150
[J2000]
4 POSS1 103a-O
1963MCG3..C...0000V
0.60 arcmin 0.50 arcmin ... ... ... ... ... Very high surface brightness 7.40E+14 36.00 ... 0.83 0.17 0.18 34 ...
5 RC3 D_25, R_25 (blue)
1991RC3.9.C...0000d
1.31 log(2a) + 1 ... ... 0.04
log(a/b)
0.05 ... ... 55
[J2000]
25.0 B-mag arcsec^-2^ 6.81E+14 122.50 14.90 0.91 0.09 0.09 24 55
[J2000]
6 RC3 A_e (Johnson B)
1991RC3.9.C...0000d
0.93 log(2a) + 1 ... ... ... 0.02 ... ... ... ... 6.81E+14 51.10 2.40 ... ... ... ... ...
7 RC3 D_0 (blue)
1991RC3.9.C...0000d
1.32 log(2a) + 1 ... ... ... ... ... ... ... 25.0 B-mag arcsec^-2^ 6.81E+14 125.40 ... ... ... ... ... ...
8 r (SDSS Isophotal)
2004SDSS2.C...0000:
70.32 (a) arcsec 55.62 arcsec ... ... ... ... 122.0
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 140.63 ... 0.79 0.21 0.23 38 122
[J2000]
9 r (SDSS Petrosian)
2004SDSS2.C...0000:
11.29 (a) arcsec ... ... ... 0.12 ... ... ... ... 4.77E+14 22.59 0.23 ... ... ... ... ...
10 r (SDSS de Vaucouleurs)
2004SDSS2.C...0000:
5.13 (a) arcsec ... ... 0.827 (b/a) 0.01 ... ... 120.3
[J2000]
... 4.77E+14 10.26 0.03 0.83 0.17 0.19 34 120
[J2000]
11 r (SDSS Exponential)
2004SDSS2.C...0000:
4.61 (a) arcsec ... ... 0.829 (b/a) 0.01 ... ... 120.9
[J2000]
... 4.77E+14 9.22 0.03 0.83 0.17 0.19 34 121
[J2000]
12 r (SDSS Isophotal)
2007SDSS6.C...0000:
68.37 (a) arcsec 52.70 arcsec ... ... ... ... 130.7
[J2000]
25.0 mag arcsec^-2^ 4.77E+14 136.74 ... 0.77 0.23 0.25 40 131
[J2000]
13 r (SDSS Petrosian)
2007SDSS6.C...0000:
11.18 (a) arcsec ... ... ... 0.111 ... ... ... ... 4.77E+14 22.36 0.22 ... ... ... ... ...
14 r (SDSS deVaucouleurs)
2007SDSS6.C...0000:
5.2520 (a) arcsec ... ... 0.814 (b/a) 0.017 ... ... 122.6
[J2000]
... 4.77E+14 10.50 0.04 0.81 0.19 0.20 36 123
[J2000]
15 r (SDSS Exponential)
2007SDSS6.C...0000:
4.5986 (a) arcsec ... ... 0.826 (b/a) 0.013 ... ... 122.9
[J2000]
... 4.77E+14 9.20 0.03 0.83 0.17 0.19 34 123
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 1973UGC...C...0000N
Published Object Name         : UGC 09678                     
Frequency Targeted            : POSS1 103a-O                  
Major Axis (2a)               : 2.00       arcmin                   2a = 120.00 arcsec
Uncertainty                   : ...                                 ... 
Minor Axis (2b)               : 2b =  1.80      arcmin              2b = 108.00 arcsec 
Uncertainty                   : ...                                 ...
Axis Ratio                    : ...                                 b/a = 0.90
Uncertainty                   : ...                                 ...
Ellipticity                   : ...                                 1 - b/a = 0.10
Uncertainty                   : ...                                 ...
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.10
Uncertainty                   : ...                                 ...
Cos-1(b/a)                    : ...                                 26 deg
Position Angle [Equinox]      : ...                                 ...
Uncertainty                   : ...                                 ...
Significance                  : No uncertainty reported
Diameter Reference Level      : About 25.0 B-mag arcsec^-2^   
Frequency                     : 4050         A                      7.40E+14 Hz
Frequency Mode                : Broad-band detector (e.g. photographic plate)

Measurement Mode               
    Detector Type             : Photographic plate, print, or film
    Fitting Technique         : Eye estimate
    Measured Quantity         : "Outer" diameter
Coordinates Targeted          : 150136.         +012400.    (B1950)
Qualifiers                    : From new, raw data
NED Comment                   : Diameters flagged uncertain.            

No. 2 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J15040702+0113117 Frequency Targeted : K_s (2MASS isophotal) Major Axis (2a) : a = 48.3 arcsec 2a = 96.60 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 90.80 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.940 b/a = 0.94 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 20 deg Position Angle [Equinox] : -30 deg [J2000] 150 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 : 226.029221 1.219910 (J2000) Qualifiers : From new, raw data NED Comment :
No. 3 Published Units: Homogenized Units: Reference Code : 20032MASX.C.......: Published Object Name : 2MASX J15040702+0113117 Frequency Targeted : K_s (2MASS "total") Major Axis (2a) : a = 69.2 arcsec 2a = 138.30 arcsec Uncertainty : ... ... Minor Axis (2b) : ... 2b = 130.00 arcsec Uncertainty : ... ... Axis Ratio : b/a = 0.940 b/a = 0.94 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.06 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.06 Uncertainty : ... ... Cos-1(b/a) : ... 20 deg Position Angle [Equinox] : -30 deg [J2000] 150 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 : 226.029221 1.219910 (J2000) Qualifiers : From new, raw data NED Comment :
No. 4 Published Units: Homogenized Units: Reference Code : 1963MCG3..C...0000V Published Object Name : MCG +00-38-020 Frequency Targeted : POSS1 103a-O Major Axis (2a) : 0.60 arcmin 2a = 36.00 arcsec Uncertainty : ... ... Minor Axis (2b) : 2b = 0.50 arcmin 2b = 30.00 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.83 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.17 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.18 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : Very high surface brightness Frequency : 4050 A 7.40E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : "Inner" diameter Coordinates Targeted : 150136 +0124 (B1950) Qualifiers : From new, raw data NED Comment :
No. 5 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 09678 Frequency Targeted : RC3 D_25, R_25 (blue) Major Axis (2a) : log(2a) + 1 = 1.31 2a = 122.50 arcsec Uncertainty : 0.05 14.90 arcsec Minor Axis (2b) : ... 2b = 111.72 arcsec Uncertainty : ... ... Axis Ratio : log(a/b) = 0.04 b/a = 0.91 Uncertainty : 0.04 0.09 Ellipticity : ... 1 - b/a = 0.09 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.09 Uncertainty : ... ... Cos-1(b/a) : ... 24 deg Position Angle [Equinox] : 55 deg [J2000] 55 deg [J2000] Uncertainty : ... ... Significance : Mean error Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 150407.2 +011315. (J2000) Qualifiers : Homogenized from previously published data NED Comment :
No. 6 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 09678 Frequency Targeted : RC3 A_e (Johnson B) Major Axis (2a) : log(2a) + 1 = 0.93 2a = 51.10 arcsec Uncertainty : 0.02 2.40 arcsec Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : Mean error Diameter Reference Level : ... Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 150407.2 +011315. (J2000) Qualifiers : From new, raw data NED Comment : From magnitude-aperture curves.
No. 7 Published Units: Homogenized Units: Reference Code : 1991RC3.9.C...0000d Published Object Name : UGC 09678 Frequency Targeted : RC3 D_0 (blue) Major Axis (2a) : log(2a) + 1 = 1.32 2a = 125.40 arcsec Uncertainty : ... ... Minor Axis (2b) : ... ... Uncertainty : ... ... Axis Ratio : ... ... Uncertainty : ... ... Ellipticity : ... ... Uncertainty : ... ... Eccentricity : ... ... Uncertainty : ... ... Cos-1(b/a) : ... ... Position Angle [Equinox] : ... ... Uncertainty : ... ... Significance : No uncertainty reported Diameter Reference Level : 25.0 B-mag arcsec^-2^ Frequency : 4400 A 6.81E+14 Hz Frequency Mode : Broad-band detector (e.g. photographic plate) Measurement Mode Detector Type : Photographic plate, print, or film Fitting Technique : Eye estimate Measured Quantity : Isophotal diameter Coordinates Targeted : 150407.2 +011315. (J2000) Qualifiers : Homogenized from previously published data NED Comment : Extinction and inclination corrected.
No. 8 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J150407.00+011311.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 70.32 arcsec 2a = 140.63 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 55.62 arcsec 2b = 111.23 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.79 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.21 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.23 Uncertainty : ... ... Cos-1(b/a) : ... 38 deg Position Angle [Equinox] : 122.0 deg [J2000] 122 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 : 226.0291595 1.2199286 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 9 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J150407.00+011311.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 11.29 arcsec 2a = 22.59 arcsec Uncertainty : 0.12 arcsec 0.23 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 : 226.0291595 1.2199286 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 10 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J150407.00+011311.7 Frequency Targeted : r (SDSS de Vaucouleurs) Major Axis (2a) : a = 5.13 arcsec 2a = 10.26 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 8.49 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.827 b/a = 0.83 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.17 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : 120.3 deg [J2000] 120 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 : 226.0291595 1.2199286 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 11 Published Units: Homogenized Units: Reference Code : 2004SDSS2.C...0000: Published Object Name : SDSS J150407.00+011311.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.61 arcsec 2a = 9.22 arcsec Uncertainty : 0.01 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 7.64 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.829 b/a = 0.83 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.17 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : 120.9 deg [J2000] 121 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 : 226.0291595 1.2199286 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 12 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J150406.99+011311.7 Frequency Targeted : r (SDSS Isophotal) Major Axis (2a) : a = 68.37 arcsec 2a = 136.74 arcsec Uncertainty : ... ... Minor Axis (2b) : b = 52.70 arcsec 2b = 105.40 arcsec Uncertainty : ... ... Axis Ratio : ... b/a = 0.77 Uncertainty : ... ... Ellipticity : ... 1 - b/a = 0.23 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.25 Uncertainty : ... ... Cos-1(b/a) : ... 40 deg Position Angle [Equinox] : 130.7 deg [J2000] 131 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 : 226.0291548114 1.2199182228 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 13 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J150406.99+011311.7 Frequency Targeted : r (SDSS Petrosian) Major Axis (2a) : a = 11.18 arcsec 2a = 22.36 arcsec Uncertainty : 0.111 arcsec 0.22 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 : 226.0291548114 1.2199182228 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment :
No. 14 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J150406.99+011311.7 Frequency Targeted : r (SDSS deVaucouleurs) Major Axis (2a) : a = 5.2520 arcsec 2a = 10.50 arcsec Uncertainty : 0.017 arcsec 0.04 arcsec Minor Axis (2b) : ... 2b = 8.55 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.814 b/a = 0.81 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.19 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.20 Uncertainty : ... ... Cos-1(b/a) : ... 36 deg Position Angle [Equinox] : 122.6 deg [J2000] 123 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 : 226.0291548114 1.2199182228 (J2000) Qualifiers : From new, raw data; DIA_MAJ or DIA_MIN modified from published data NED Comment : Effective (half-light) radius
No. 15 Published Units: Homogenized Units: Reference Code : 2007SDSS6.C...0000: Published Object Name : SDSS J150406.99+011311.7 Frequency Targeted : r (SDSS Exponential) Major Axis (2a) : a = 4.5986 arcsec 2a = 9.20 arcsec Uncertainty : 0.013 arcsec 0.03 arcsec Minor Axis (2b) : ... 2b = 7.60 arcsec Uncertainty : ... 0.00 Axis Ratio : b/a = 0.826 b/a = 0.83 Uncertainty : 0.003 0.00 Ellipticity : ... 1 - b/a = 0.17 Uncertainty : ... ... Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.19 Uncertainty : ... ... Cos-1(b/a) : ... 34 deg Position Angle [Equinox] : 122.9 deg [J2000] 123 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 : 226.0291548114 1.2199182228 (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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