NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T19:44:10 PDT
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Spectral Energy Distribution (SED) for 4C +29.17:

8 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 4.85 GHz 646 +/- 84 milliJy 4.85E+09 6.46E-01 +/- 8.40E-02 Jy Broad-band 1991ApJS...75.1011G 1
2 4.85 GHz 641 +/- 15 % milliJy 4.85E+09 6.41E-01 +/- 9.62E-02 Jy Broad-band 1991ApJS...75....1B 2
3 4830 MHz (NRAO) 723 ... milliJy 4.83E+09 7.23E-01 ... Jy Broad-band S/N = 99 1990ApJS...72..621L 3
4 1.40 GHz 1990 ... milliJy 1.40E+09 1.99E+00 ... Jy Broad-band 1992ApJS...79..331W 4
5 408 MHz 5.215 +/- 8 % Jy 4.08E+08 5.22E+00 +/- 4.17E-01 Jy Broad-band 1972A&AS....7....1C 5
6 365 MHz (Texas) 6.579 +/- 0.139 Jy 3.65E+08 6.58E+00 +/- 1.39E-01 Jy Broad-band Model:A;MFlag:+;EFlag:C;LFlag:+. 1996AJ....111.1945D 6
7 178 MHz 8.3 +/- 12.5% Jy 1.78E+08 8.30E+00 +/- 1.04E+00 Jy Broad-band 1965MmRAS..69..183P 7
8 26.3 MHz 48. +/- 6. Jy 2.63E+07 4.80E+01 +/- 6.00E+00 Jy Broad-band 1975AJ.....80..931V 8


Detailed Information for Each Entry

 No. 1
Reference Code : 1991ApJS...75.1011G
Freq. targeted : 4.85 GHz            
Measurement    :  646         milliJy              = 6.46E-27 W m^-2^ Hz^-1^
Uncertainty    :  84          milliJy              = 8.40E-28
Significance   : rms noise
Freq or Vel.   : 4.85         GHz          (OBS   )= 4.85E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 050730.1        +290525 (B1950)
Spatial mode   : Modelled datum
Notes          : From new raw data; Corrected for contaminating sources
Qualifiers     :                                         

No. 2 Reference Code : 1991ApJS...75....1B Freq. targeted : 4.85 GHz Measurement : 641 milliJy = 6.41E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 9.62E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 050730.2 +290525 (B1950) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 3 Reference Code : 1990ApJS...72..621L Freq. targeted : 4830 MHz (NRAO) Measurement : 723 milliJy = 7.23E-27 W m^-2^ Hz^-1^ Uncertainty : milliJy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 4830 MHz (OBS )= 4.83E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 05 10 40.4 +29 08 51 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 99
No. 4 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 1990 milliJy = 1.99E-26 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: 050730.2 +290525 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1972A&AS....7....1C Freq. targeted : 408 MHz Measurement : 5.215 Jy = 5.22E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 4.17E-27 Significance : internal error Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: 050730.1 +290506. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 6.579 Jy = 6.58E-26 W m^-2^ Hz^-1^ Uncertainty : 0.139 Jy = 1.39E-27 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: 050728.372 290543.70 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:A;MFlag:+;EFlag:C;LFlag:+.
No. 7 Reference Code : 1965MmRAS..69..183P Freq. targeted : 178 MHz Measurement : 8.3 Jy = 8.30E-26 W m^-2^ Hz^-1^ Uncertainty : 12.5% Jy = 1.04E-26 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 050731.2 +290536 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 8 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 48. Jy = 4.80E-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: 050706. +291800. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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