NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-18 T22:49:32 PDT
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Spectral Energy Distribution (SED) for PKS 0331-448:

7 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 5000 MHz 0.220 ... Jy 5.00E+09 2.20E-01 ... Jy Broad-band 1990PKS90.C...0000W 1
2 4.85 GHz 204 +/- 14 milliJy 4.85E+09 2.04E-01 +/- 1.40E-02 Jy Broad-band 1994ApJS...91..111W 2
3 4.85 GHz 204 +/- 14 milliJy 4.85E+09 2.04E-01 +/- 1.40E-02 Jy Broad-band 1994ApJS...90..173G 3
4 2700 MHz 0.280 ... Jy 2.70E+09 2.80E-01 ... Jy Broad-band 1990PKS90.C...0000W 4
5 843 MHz (SUMSS) 1016 +/- 30.5 milliJy 8.43E+08 1.02E+00 +/- 3.05E-02 Jy Broad-band 2008SUMSS.2.1.....: 5
6 408 MHz 1.55 +/- 0.06 Jy 4.08E+08 1.55E+00 +/- 6.00E-02 Jy Broad-band 1981MNRAS.194..693L 6
7 408 MHz 1.550 ... Jy 4.08E+08 1.55E+00 ... Jy Broad-band 1990PKS90.C...0000W 7


Detailed Information for Each Entry

 No. 1
Reference Code : 1990PKS90.C...0000W
Freq. targeted : 5000 MHz            
Measurement    :  0.220       Jy                   = 2.20E-27 W m^-2^ Hz^-1^
Uncertainty    :              Jy                   = 0.00E+00
Significance   : no uncertainty reported
Freq or Vel.   :     5000     MHz          (OBS   )= 5.00E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 03 31 55.6      -44 48 57 (B1950)
Spatial mode   : Integrated from scans
Notes          : Homogenized from new and previously published data
Qualifiers     :                                         

No. 2 Reference Code : 1994ApJS...91..111W Freq. targeted : 4.85 GHz Measurement : 204 milliJy = 2.04E-27 W m^-2^ Hz^-1^ Uncertainty : 14 milliJy = 1.40E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 033334.2 -443910 (J2000) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 3 Reference Code : 1994ApJS...90..173G Freq. targeted : 4.85 GHz Measurement : 204 milliJy = 2.04E-27 W m^-2^ Hz^-1^ Uncertainty : 14 milliJy = 1.40E-28 Significance : rms noise Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 033154.0 -444916 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 4 Reference Code : 1990PKS90.C...0000W Freq. targeted : 2700 MHz Measurement : 0.280 Jy = 2.80E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 2700 MHz (OBS )= 2.70E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 03 31 55.6 -44 48 57 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 5 Reference Code : 2008SUMSS.2.1.....: Freq. targeted : 843 MHz (SUMSS) Measurement : 1016 milliJy = 1.02E-26 W m^-2^ Hz^-1^ Uncertainty : 30.5 milliJy = 3.05E-28 Significance : uncertainty Freq or Vel. : 843 MHz (OBS )= 8.43E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 033335.71 -443901.0 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1981MNRAS.194..693L Freq. targeted : 408 MHz Measurement : 1.55 Jy = 1.55E-26 W m^-2^ Hz^-1^ Uncertainty : 0.06 Jy = 6.00E-28 Significance : rms noise Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 033155.4 -444904 (B1950) Spatial mode : Modelled datum Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 7 Reference Code : 1990PKS90.C...0000W Freq. targeted : 408 MHz Measurement : 1.550 Jy = 1.55E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 03 31 55.6 -44 48 57 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :

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