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Date and Time of the Query: 2019-08-17 T14:59:41 PDT
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Spectral Energy Distribution (SED) for 3C 344:

17 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 396 +/- 49 milliJy 4.85E+09 3.96E-01 +/- 4.90E-02 Jy Broad-band 1991ApJS...75.1011G 1
2 4.85 GHz 392 +/- 15 % milliJy 4.85E+09 3.92E-01 +/- 5.88E-02 Jy Broad-band 1991ApJS...75....1B 2
3 4830 MHz (NRAO) 495 ... milliJy 4.83E+09 4.95E-01 ... Jy Broad-band S/N = 45 1990ApJS...72..621L 3
4 4830 MHz (NRAO) 471 ... milliJy 4.83E+09 4.71E-01 ... Jy Broad-band S/N = 58 1990ApJS...74..129G 4
5 4830 MHz (NRAO) 415 ... milliJy 4.83E+09 4.15E-01 ... Jy Broad-band S/N = 51 1991ApJS...75..801G 5
6 1.4GHz 203.54 +/- 5 % milliJy 1.40E+09 2.04E-01 +/- 1.02E-02 Jy Broad-band 1995ApJ...450..559B 6
7 1.4GHz 1419.0 +/- 47.4 milliJy 1.40E+09 1.42E+00 +/- 4.74E-02 Jy Broad-band High peak 1998AJ....115.1693C 7
8 1400 MHz (NRAO) 1.32 +/- 0.05 Jy 1.40E+09 1.32E+00 +/- 5.00E-02 Jy Broad-band 1966ApJS...13...65P 8
9 1.40 GHz 1215 ... milliJy 1.40E+09 1.22E+00 ... Jy Broad-band 1992ApJS...79..331W 9
10 1.4GHz 306.89 ... milliJy 1.40E+09 3.07E-01 ... Jy Broad-band 1995ApJ...450..559B 10
11 750 MHz (NRAO) 2.19 +/- 0.07 Jy 7.50E+08 2.19E+00 +/- 7.00E-02 Jy Broad-band 1966ApJS...13...65P 11
12 408 MHz 4.415 +/- 8 % Jy 4.08E+08 4.42E+00 +/- 3.53E-01 Jy Broad-band 1973A&AS...11..291C 12
13 408 MHz 4.21 +/- 0.09 Jy 4.08E+08 4.21E+00 +/- 8.65E-02 Jy Broad-band 1985A&AS...59..255F 13
14 365 MHz (Texas) 4.949 +/- 0.073 Jy 3.65E+08 4.95E+00 +/- 7.30E-02 Jy Broad-band Model:A;MFlag:+;EFlag:+;LFlag:+. 1996AJ....111.1945D 14
15 178 MHz 8.6 +/- 12.5% Jy 1.78E+08 8.60E+00 +/- 1.07E+00 Jy Broad-band 1965MmRAS..69..183P 15
16 74 MHz (VLA) 16.19 +/- 1.65 Jy 7.38E+07 1.62E+01 +/- 1.65E+00 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 16
17 26.3 MHz 36. +/- 10. Jy 2.63E+07 3.60E+01 +/- 1.00E+01 Jy Broad-band 1975AJ.....80..931V 17


Detailed Information for Each Entry

 No. 1
Reference Code : 1991ApJS...75.1011G
Freq. targeted : 4.85 GHz            
Measurement    :  396         milliJy              = 3.96E-27 W m^-2^ Hz^-1^
Uncertainty    :  49          milliJy              = 4.90E-28
Significance   : rms noise
Freq or Vel.   : 4.85         GHz          (OBS   )= 4.85E+09 Hz
Frequency mode : Broad-band measurement
Coord. targeted: 164122.0        +373510 (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 : 392 milliJy = 3.92E-27 W m^-2^ Hz^-1^ Uncertainty : 15 % milliJy = 5.88E-28 Significance : uncertainty Freq or Vel. : 4.85 GHz (OBS )= 4.85E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 164122.1 +373511 (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 : 495 milliJy = 4.95E-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: 16 43 07.0 +37 30 20 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 45
No. 4 Reference Code : 1990ApJS...74..129G Freq. targeted : 4830 MHz (NRAO) Measurement : 471 milliJy = 4.71E-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: 16 43 07.4 +37 30 42 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 58
No. 5 Reference Code : 1991ApJS...75..801G Freq. targeted : 4830 MHz (NRAO) Measurement : 415 milliJy = 4.15E-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: 16 43 03.5 +37 29 58 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : S/N = 51
No. 6 Reference Code : 1995ApJ...450..559B Freq. targeted : 1.4GHz Measurement : 203.54 milliJy = 2.04E-27 W m^-2^ Hz^-1^ Uncertainty : 5 % milliJy = 1.02E-28 Significance : rms noise Freq or Vel. : 1.4 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement; synthetic band Coord. targeted: 164305.574 +372913.18 (J2000) Spatial mode : Peak flux Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 7 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 1419.0 milliJy = 1.42E-26 W m^-2^ Hz^-1^ Uncertainty : 47.4 milliJy = 4.74E-28 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 43 5.93 +37 29 34.4 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : High peak
No. 8 Reference Code : 1966ApJS...13...65P Freq. targeted : 1400 MHz (NRAO) Measurement : 1.32 Jy = 1.32E-26 W m^-2^ Hz^-1^ Uncertainty : 0.05 Jy = 5.00E-28 Significance : internal error Freq or Vel. : 1400 MHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 164123.5 +373539. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 1215 milliJy = 1.22E-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: 164122.1 +373511 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1995ApJ...450..559B Freq. targeted : 1.4GHz Measurement : 306.89 milliJy = 3.07E-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; synthetic band Coord. targeted: 164305.574 +372913.18 (J2000) Spatial mode : From fitting to map Notes : From new raw data; Corrected for contaminating sources Qualifiers :
No. 11 Reference Code : 1966ApJS...13...65P Freq. targeted : 750 MHz (NRAO) Measurement : 2.19 Jy = 2.19E-26 W m^-2^ Hz^-1^ Uncertainty : 0.07 Jy = 7.00E-28 Significance : internal error Freq or Vel. : 750 MHz (OBS )= 7.50E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 164123.5 +373539. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 12 Reference Code : 1973A&AS...11..291C Freq. targeted : 408 MHz Measurement : 4.415 Jy = 4.42E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 3.53E-27 Significance : internal error Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: 164120.7 +373536. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 13 Reference Code : 1985A&AS...59..255F Freq. targeted : 408 MHz Measurement : 4.21 Jy = 4.21E-26 W m^-2^ Hz^-1^ Uncertainty : 0.09 Jy = 8.65E-28 Significance : rms uncertainty Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 41 20.7 37 35 9 (B1950) Spatial mode : Total flux Notes : From new raw data Qualifiers :
No. 14 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 4.949 Jy = 4.95E-26 W m^-2^ Hz^-1^ Uncertainty : 0.073 Jy = 7.30E-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: 164120.583 373507.16 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:A;MFlag:+;EFlag:+;LFlag:+.
No. 15 Reference Code : 1965MmRAS..69..183P Freq. targeted : 178 MHz Measurement : 8.6 Jy = 8.60E-26 W m^-2^ Hz^-1^ Uncertainty : 12.5% Jy = 1.07E-26 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 164121.0 +373442 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 16 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 16.19 Jy = 1.62E-25 W m^-2^ Hz^-1^ Uncertainty : 1.65 Jy = 1.65E-26 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 16 43 05.89 +37 29 35.0 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 17 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 36. Jy = 3.60E-25 W m^-2^ Hz^-1^ Uncertainty : 10. Jy = 1.00E-25 Significance : uncertainty Freq or Vel. : 26.3 MHz (OBS )= 2.63E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 164130. +372000. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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