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Date and Time of the Query: 2022-01-25 T05:35:33 PST
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Diameter data point(s) for object MESSIER 043

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 0.5-7 keV Chandra
2020CSC...C2..0000:
2.77602186 arcsec 2.77602186 arcsec ... 0.45759223 ... ... 0.0
[J2000]
extent deconvolved with PSF 5.56E+17 2.78 0.46 2.78 -1.78 0.77 0 0
[J2000]
2 0.5-1.2 keV Chandra
2020CSC...C2..0000:
2.96871864 arcsec 2.96871864 arcsec ... 0.78596682 ... ... 0.0
[J2000]
extent deconvolved with PSF 2.22E+17 2.97 0.79 2.97 -1.97 0.80 0 0
[J2000]
3 1.2-2 keV Chandra
2020CSC...C2..0000:
2.87840084 arcsec 2.87840084 arcsec ... 0.35980556 ... ... 0.0
[J2000]
extent deconvolved with PSF 3.77E+17 2.88 0.36 2.88 -1.88 0.78 0 0
[J2000]


Detailed Information for Each Entry

 No. 1
                                Published Units:                    Homogenized Units:

Reference Code                : 2020CSC...C2..0000:
Published Object Name         :                               
Frequency Targeted            : 0.5-7 keV Chandra             
Major Axis (2a)               : 2.77602186 arcsec                   2a = 2.78 arcsec
Uncertainty                   : 0.45759223  arcsec                  0.46 arcsec              
Minor Axis (2b)               : 2b = 2.77602186 arcsec              2b = 2.78 arcsec 
Uncertainty                   : 0.45759223                                  0.46
Axis Ratio                    : ...                                 b/a = 2.78
Uncertainty                   : ...                                 0.46
Ellipticity                   : ...                                 1 - b/a = -1.78
Uncertainty                   : ...                                 0.46
Eccentricity                  : ...                                 [(a/b)2-1]/[(a/b)2+1] = 0.77
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. 2 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 0.5-1.2 keV Chandra Major Axis (2a) : 2.96871864 arcsec 2a = 2.97 arcsec Uncertainty : 0.78596682 arcsec 0.79 arcsec Minor Axis (2b) : 2b = 2.96871864 arcsec 2b = 2.97 arcsec Uncertainty : 0.78596682 0.79 Axis Ratio : ... b/a = 2.97 Uncertainty : ... 0.79 Ellipticity : ... 1 - b/a = -1.97 Uncertainty : ... 0.79 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.80 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 :
No. 3 Published Units: Homogenized Units: Reference Code : 2020CSC...C2..0000: Published Object Name : Frequency Targeted : 1.2-2 keV Chandra Major Axis (2a) : 2.87840084 arcsec 2a = 2.88 arcsec Uncertainty : 0.35980556 arcsec 0.36 arcsec Minor Axis (2b) : 2b = 2.87840084 arcsec 2b = 2.88 arcsec Uncertainty : 0.35980556 0.36 Axis Ratio : ... b/a = 2.88 Uncertainty : ... 0.36 Ellipticity : ... 1 - b/a = -1.88 Uncertainty : ... 0.36 Eccentricity : ... [(a/b)2-1]/[(a/b)2+1] = 0.78 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 : 1.56 keV 3.77E+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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