NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T08:29:20 PDT
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Spectral Energy Distribution (SED) for 4C +24.45:

13 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 2700 MHz 0.100 ... Jy 2.70E+09 1.00E-01 ... Jy Broad-band 1990PKS90.C...0000W 1
2 1410 MHz 0.200 ... Jy 1.41E+09 2.00E-01 ... Jy Broad-band 1990PKS90.C...0000W 2
3 1.40 GHz 167 ... milliJy 1.40E+09 1.67E-01 ... Jy Broad-band 1992ApJS...79..331W 3
4 1.4GHz 223.0 +/- 6.7 milliJy 1.40E+09 2.23E-01 +/- 6.70E-03 Jy Broad-band 1998AJ....115.1693C 4
5 408 MHz 1.057 +/- 8 % Jy 4.08E+08 1.06E+00 +/- 8.46E-02 Jy Broad-band 1972A&AS....7....1C 5
6 365 MHz (Texas) 1.416 +/- 0.064 Jy 3.65E+08 1.42E+00 +/- 6.40E-02 Jy Broad-band Model:D;MFlag:+;EFlag:+;LFlag:+. 1996AJ....111.1945D 6
7 178 MHz 2.3 +/- 15.0% Jy 1.78E+08 2.30E+00 +/- 3.45E-01 Jy Broad-band 1965MmRAS..69..183P 7
8 178 MHz 2.300 ... Jy 1.78E+08 2.30E+00 ... Jy Broad-band 1990PKS90.C...0000W 8
9 160 MHz 4.6 ... Jy 1.60E+08 4.60E+00 ... Jy Broad-band 1995AuJPh..48..143S 9
10 80 MHz 10. ... Jy 8.00E+07 1.00E+01 ... Jy Broad-band 1995AuJPh..48..143S 10
11 80 MHz 9.000 ... Jy 8.00E+07 9.00E+00 ... Jy Broad-band 1990PKS90.C...0000W 11
12 74 MHz (VLA) 6.28 +/- 0.66 Jy 7.38E+07 6.28E+00 +/- 6.60E-01 Jy Broad-band Corrected for clean bias 2007AJ....134.1245C 12
13 26.3 MHz 43. +/- 6. Jy 2.63E+07 4.30E+01 +/- 6.00E+00 Jy Broad-band 1975AJ.....80..931V 13


Detailed Information for Each Entry

 No. 1
Reference Code : 1990PKS90.C...0000W
Freq. targeted : 2700 MHz            
Measurement    :  0.100       Jy                   = 1.00E-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: 18 19 35.4      +24 31 45 (B1950)
Spatial mode   : Integrated from scans
Notes          : Homogenized from new and previously published data
Qualifiers     :                                         

No. 2 Reference Code : 1990PKS90.C...0000W Freq. targeted : 1410 MHz Measurement : 0.200 Jy = 2.00E-27 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 1410 MHz (OBS )= 1.41E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 19 35.4 +24 31 45 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 3 Reference Code : 1992ApJS...79..331W Freq. targeted : 1.40 GHz Measurement : 167 milliJy = 1.67E-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: 181931.7 +243029 (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 4 Reference Code : 1998AJ....115.1693C Freq. targeted : 1.4GHz Measurement : 223.0 milliJy = 2.23E-27 W m^-2^ Hz^-1^ Uncertainty : 6.7 milliJy = 6.70E-29 Significance : uncertainty Freq or Vel. : 1.40 GHz (OBS )= 1.40E+09 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 21 37.07 +24 33 14.0 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 5 Reference Code : 1972A&AS....7....1C Freq. targeted : 408 MHz Measurement : 1.057 Jy = 1.06E-26 W m^-2^ Hz^-1^ Uncertainty : 8 % Jy = 8.46E-28 Significance : internal error Freq or Vel. : 408 MHz (OBS )= 4.08E+08 Hz Frequency mode : Broad-band measurement; peak value reported Coord. targeted: 181933.5 +243136. (B1950) Spatial mode : Peak flux Notes : From new raw data Qualifiers :
No. 6 Reference Code : 1996AJ....111.1945D Freq. targeted : 365 MHz (Texas) Measurement : 1.416 Jy = 1.42E-26 W m^-2^ Hz^-1^ Uncertainty : 0.064 Jy = 6.40E-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: 181933.672 243145.02 (B1950) Spatial mode : Integrated from scans Notes : From new raw data Qualifiers : Model:D;MFlag:+;EFlag:+;LFlag:+.
No. 7 Reference Code : 1965MmRAS..69..183P Freq. targeted : 178 MHz Measurement : 2.3 Jy = 2.30E-26 W m^-2^ Hz^-1^ Uncertainty : 15.0% Jy = 3.45E-27 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 181934.4 +242948 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 8 Reference Code : 1990PKS90.C...0000W Freq. targeted : 178 MHz Measurement : 2.300 Jy = 2.30E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 19 35.4 +24 31 45 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 9 Reference Code : 1995AuJPh..48..143S Freq. targeted : 160 MHz Measurement : 4.6 Jy = 4.60E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 160 MHz (OBS )= 1.60E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 181933.3 +243130. (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 10 Reference Code : 1995AuJPh..48..143S Freq. targeted : 80 MHz Measurement : 10. Jy = 1.00E-25 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 181933.3 +243130. (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 11 Reference Code : 1990PKS90.C...0000W Freq. targeted : 80 MHz Measurement : 9.000 Jy = 9.00E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 80 MHz (OBS )= 8.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 19 35.4 +24 31 45 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 12 Reference Code : 2007AJ....134.1245C Freq. targeted : 74 MHz (VLA) Measurement : 6.28 Jy = 6.28E-26 W m^-2^ Hz^-1^ Uncertainty : 0.66 Jy = 6.60E-27 Significance : rms uncertainty Freq or Vel. : 73.8 MHz (OBS )= 7.38E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 18 21 37.18 +24 33 18.5 (J2000) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers : Corrected for clean bias
No. 13 Reference Code : 1975AJ.....80..931V Freq. targeted : 26.3 MHz Measurement : 43. Jy = 4.30E-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: 181948. +245700. (B1950) Spatial mode : Integrated from scans; Beam filling or dilution corrected Notes : From new raw data Qualifiers :

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