NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-24 T04:00:54 PDT
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Spectral Energy Distribution (SED) for 4C +21.33:

9 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 0.230 ... Jy 5.00E+09 2.30E-01 ... Jy Broad-band 1990PKS90.C...0000W 1
2 2700 MHz 0.420 ... Jy 2.70E+09 4.20E-01 ... Jy Broad-band 1990PKS90.C...0000W 2
3 1410 MHz 1.000 ... Jy 1.41E+09 1.00E+00 ... Jy Broad-band 1990PKS90.C...0000W 3
4 635 MHz 1.600 ... Jy 6.35E+08 1.60E+00 ... Jy Broad-band 1990PKS90.C...0000W 4
5 178 MHz 5.700 ... Jy 1.78E+08 5.70E+00 ... Jy Broad-band 1990PKS90.C...0000W 5
6 178 MHz 5.7 +/- 27.5% Jy 1.78E+08 5.70E+00 +/- 1.57E+00 Jy Broad-band 1965MmRAS..69..183P 6
7 80 MHz 21.00 ... Jy 8.00E+07 2.10E+01 ... Jy Broad-band 1990PKS90.C...0000W 7
8 22 MHz (DRAO) 122 +/- 12 Jy 2.23E+07 1.22E+02 +/- 1.20E+01 Jy Broad-band 1986A&AS...65..485R 8
9 10 MHz (DRAO) 145E-26 +/- 35E-26 W/m^2^/Hz 1.00E+07 1.45E+02 +/- 3.50E+01 Jy Broad-band 1973AJ.....78.1030R 9


Detailed Information for Each Entry

 No. 1
Reference Code : 1990PKS90.C...0000W
Freq. targeted : 5000 MHz            
Measurement    :  0.230       Jy                   = 2.30E-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: 11 40 21.2      +21 45 51 (B1950)
Spatial mode   : Integrated from scans
Notes          : Homogenized from new and previously published data
Qualifiers     :                                         

No. 2 Reference Code : 1990PKS90.C...0000W Freq. targeted : 2700 MHz Measurement : 0.420 Jy = 4.20E-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: 11 40 21.2 +21 45 51 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 3 Reference Code : 1990PKS90.C...0000W Freq. targeted : 1410 MHz Measurement : 1.000 Jy = 1.00E-26 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: 11 40 21.2 +21 45 51 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 4 Reference Code : 1990PKS90.C...0000W Freq. targeted : 635 MHz Measurement : 1.600 Jy = 1.60E-26 W m^-2^ Hz^-1^ Uncertainty : Jy = 0.00E+00 Significance : no uncertainty reported Freq or Vel. : 635 MHz (OBS )= 6.35E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 11 40 21.2 +21 45 51 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 5 Reference Code : 1990PKS90.C...0000W Freq. targeted : 178 MHz Measurement : 5.700 Jy = 5.70E-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: 11 40 21.2 +21 45 51 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 6 Reference Code : 1965MmRAS..69..183P Freq. targeted : 178 MHz Measurement : 5.7 Jy = 5.70E-26 W m^-2^ Hz^-1^ Uncertainty : 27.5% Jy = 1.57E-26 Significance : uncertainty Freq or Vel. : 178 MHz (OBS )= 1.78E+08 Hz Frequency mode : Broad-band measurement Coord. targeted: 113948.4 +214300 (B1950) Spatial mode : Integrated from scans Notes : From new raw data; Uncorrected for known sources in beam Qualifiers :
No. 7 Reference Code : 1990PKS90.C...0000W Freq. targeted : 80 MHz Measurement : 21.00 Jy = 2.10E-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: 11 40 21.2 +21 45 51 (B1950) Spatial mode : Integrated from scans Notes : Homogenized from new and previously published data Qualifiers :
No. 8 Reference Code : 1986A&AS...65..485R Freq. targeted : 22 MHz (DRAO) Measurement : 122 Jy = 1.22E-24 W m^-2^ Hz^-1^ Uncertainty : 12 Jy = 1.20E-25 Significance : uncertainty Freq or Vel. : 22.25 MHz (OBS )= 2.23E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: 11 39 48.4 +21 43 00 (B1950) Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :
No. 9 Reference Code : 1973AJ.....78.1030R Freq. targeted : 10 MHz (DRAO) Measurement : 145E-26 W/m^2^/Hz = 1.45E-24 W m^-2^ Hz^-1^ Uncertainty : 35E-26 W/m^2^/Hz = 3.50E-25 Significance : uncertainty Freq or Vel. : 10 MHz (OBS )= 1.00E+07 Hz Frequency mode : Broad-band measurement Coord. targeted: Spatial mode : Flux integrated from map Notes : From new raw data Qualifiers :

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