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Date and Time of the Query: 2019-08-25 T00:37:12 PDT
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Spectral Energy Distribution (SED) for 4C +42.17:

15 Data Points
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Photometric Data --- Published and Homogenized [Frequency, Flux Density] Units

  Published UnitsHomogenized Units [Frequency, Flux Density]  
No.Observed PassbandMeasurementUncertaintyUnitsFreq (Hz)MeasurementUncertaintyUnitsModeAperture/QualifiersReference CodeNo.
1 J (2MASS/FLWO) 15.83 +/- 0.065 mag 2.43E+14 7.42E-04 +/- 4.44E-05 Jy Broad-band Profile-fit 2006AJ....131.1163S 1
2 J (2MASS/FLWO) 15.782 +/- 0.078 mag 2.43E+14 7.76E-04 +/- 5.57E-05 Jy Broad-band 4" aperture 2006AJ....131.1163S 2
3 H (2MASS/FLWO) 15.066 +/- 0.087 mag 1.80E+14 9.64E-04 +/- 7.72E-05 Jy Broad-band Profile-fit 2006AJ....131.1163S 3
4 H (2MASS/FLWO) 15.046 +/- 0.119 mag 1.80E+14 9.82E-04 +/- 1.08E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 4
5 K_s (2MASS/FLWO) 14.194 +/- 0.062 mag 1.39E+14 1.40E-03 +/- 8.00E-05 Jy Broad-band Profile-fit 2006AJ....131.1163S 5
6 K_s (2MASS/FLWO) 14.146 +/- 0.094 mag 1.39E+14 1.46E-03 +/- 1.27E-04 Jy Broad-band 4" aperture 2006AJ....131.1163S 6
7 5 GHz (VLA) 22 ... milliJy 4.89E+09 2.20E-02 ... Jy Broad-band Core flux; S/N = 54 1997A&AS..122..235L 7
8 4.85 GHz 195 +/- 23 milliJy 4.85E+09 1.95E-01 +/- 2.30E-02 Jy Broad-band 1991ApJS...75.1011G 8
9 4.85 GHz 190 +/- 15 % milliJy 4.85E+09 1.90E-01 +/- 2.85E-02 Jy Broad-band 1991ApJS...75....1B 9
10 1.40 GHz 623 ... milliJy 1.40E+09 6.23E-01 ... Jy Broad-band 1992ApJS...79..331W 10
11 408 MHz 1.74 +/- 0.04 Jy 4.08E+08 1.74E+00 +/- 4.01E-02 Jy Broad-band 1985A&AS...59..255F 11
12 365 MHz (Texas) 1.453 +/- 0.051 Jy 3.65E+08 1.45E+00 +/- 5.10E-02 Jy Broad-band Model:A;MFlag:+;EFlag:+;LFlag:+. 1996AJ....111.1945D 12
13 178 MHz 3.1 +/- 15.0% Jy 1.78E+08 3.10E+00 +/- 4.65E-01 Jy Broad-band 1967MmRAS..71...49G 13
14 74 MHz (VLA) 9.02 +/- 0.93 Jy 7.38E+07 9.02E+00 +/- 9.30E-01 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 14
15 26.3 MHz 34. +/- 6. Jy 2.63E+07 3.40E+01 +/- 6.00E+00 Jy Broad-band 1975AJ.....80..931V 15


Detailed Information for Each Entry

 No. 1
Reference Code : 2006AJ....131.1163S
Freq. targeted : J (2MASS/FLWO)      
Measurement    :  15.83       mag                  = 7.42E-30 W m^-2^ Hz^-1^
Uncertainty    :  0.065       mag                  = 4.44E-31
Significance   : uncertainty
Freq or Vel.   : 1.235        microns      (OBS   )= 2.43E+14 Hz
Frequency mode : Broad-band measurement
Coord. targeted:
Spatial mode   : Flux in fixed aperture
Notes          : From new raw data
Qualifiers     : Profile-fit                             

No. 2 Reference Code : 2006AJ....131.1163S Freq. targeted : J (2MASS/FLWO) Measurement : 15.782 mag = 7.76E-30 W m^-2^ Hz^-1^ Uncertainty : 0.078 mag = 5.57E-31 Significance : uncertainty Freq or Vel. : 1.235 microns (OBS )= 2.43E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 3 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 15.066 mag = 9.64E-30 W m^-2^ Hz^-1^ Uncertainty : 0.087 mag = 7.72E-31 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 4 Reference Code : 2006AJ....131.1163S Freq. targeted : H (2MASS/FLWO) Measurement : 15.046 mag = 9.82E-30 W m^-2^ Hz^-1^ Uncertainty : 0.119 mag = 1.08E-30 Significance : uncertainty Freq or Vel. : 1.662 microns (OBS )= 1.80E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 5 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 14.194 mag = 1.40E-29 W m^-2^ Hz^-1^ Uncertainty : 0.062 mag = 8.00E-31 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : Profile-fit
No. 6 Reference Code : 2006AJ....131.1163S Freq. targeted : K_s (2MASS/FLWO) Measurement : 14.146 mag = 1.46E-29 W m^-2^ Hz^-1^ Uncertainty : 0.094 mag = 1.27E-30 Significance : uncertainty Freq or Vel. : 2.159 microns (OBS )= 1.39E+14 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux in fixed aperture Notes : From new raw data Qualifiers : 4" aperture
No. 7 Reference Code : 1997A&AS..122..235L Freq. targeted : 5 GHz (VLA) Measurement : 22 milliJy = 2.20E-28 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4.885 GHz (OBS )= 4.89E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 14 56.97 +42 52 25.1 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Core flux; S/N = 54
No. 8 Reference Code : 1991ApJS...75.1011G Freq. targeted : 4.85 GHz Measurement : 195 milliJy = 1.95E-27 W m^-2^ Hz^-1^ Uncertainty : 23 milliJy = 2.30E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 061120.2 +425327 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 9 Reference Code : 1991ApJS...75....1B Freq. targeted : 4.85 GHz Measurement : 190 milliJy = 1.90E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 2.85E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 061120.3 +425328 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 10 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 623 milliJy = 6.23E-27 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 061120.3 +425328 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 11 Reference Code : 1985A&AS...59..255F Freq. targeted : 408 MHz Measurement : 1.74 Jy = 1.74E-26 W m^-2^ Hz^-1^ Uncertainty : 0.04 Jy = 4.01E-28 Significance : rms uncertainty Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 6 11 21.2 42 53 25 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 1.453 Jy = 1.45E-26 W m^-2^ Hz^-1^ Uncertainty : 0.051 Jy = 5.10E-28 Significance : internal error Freq or Vel. : 365 MHz (OBS )= 3.65E+08 Hz Frequency mode : Broad-band measurement; obtained by interpolation over frequency Coord. targeted: 061120.448 425327.55 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:A;MFlag:+;EFlag:+;LFlag:+.
No. 13 Reference Code : 1967MmRAS..71...49G Freq. targeted : 178 MHz Measurement : 3.1 Jy = 3.10E-26 W m^-2^ Hz^-1^ Uncertainty : 15.0% Jy = 4.65E-27 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 061122.5 +425148 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 14 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 9.02 Jy = 9.02E-26 W m^-2^ Hz^-1^ Uncertainty : 0.93 Jy = 9.30E-27 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 06 14 56.47 +42 52 31.2 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 15 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 34. Jy = 3.40E-25 W m^-2^ Hz^-1^ Uncertainty : 6. Jy = 6.00E-26 Significance : uncertainty Freq or Vel. : 26.3 MHz (OBS )= 2.63E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 061124. +425100. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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