Filter Profile Service
A repository of Filter information for the VO.
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Generic :Generic filters, not directly associated to any specific instrument.
Generic/Johnson :Johnson generic photometric systemid:Generic/Johnson.a
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full Generic/Johnson filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

Generic/Johnson.U3511.893531.053551.053010.004100.00657.001438.733.5e-9  Johnson U
X
Generic/Johnson.U
Filter Description

Filter ID (?) :Generic/Johnson.U
Description (?) :Johnson U
Phot.System (?) :Johnson
Detector Type (?) :Energy counter
Band Name (?) :U
Obs. Facility (?) :------
Instrument (?) :------
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 3511.89 ------- (Angstrom)
λmean (?) : 3531.05 ------- (Angstrom)
λcen (?) : 3520.30 ------- (Angstrom)
λeff (?) : 3551.05 ------- (Angstrom)
λpeak (?) : 3600.00 ------- (Angstrom)
λpivot (?) : 3511.89 ------- (Angstrom)
λphot (?) : 3565.76 ------- (Angstrom)
λmin (?) : 3010.00 ------- (Angstrom)
λmax (?) : 4100.00 ------- (Angstrom)
Weff (?) : 657.00 ------- (Angstrom)
FWHM (?) : 683.73 ------- (Angstrom)
Af/AV (?) : 1.62 ------- ()
Fsun (?) : 106.00 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Transmission components: Filterid:Generic/Johnson.U
 

You can download here the GaiaXPy base XML file for the full Generic/Johnson filter set.
Please, take a look to GaiaXPy documentation for more information.

- GaiaXPy base XML file.

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.49719e-9(erg/cm2/s/A)
  ------- 1438.73(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Generic/Johnson.U/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 8.82605e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Generic/Johnson.U/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 1493.78(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Generic/Johnson.U/ST
 


Filter added: 2010-04-17 05:58:56
Last update: 2021-07-27 19:15:02
Generic/Johnson.B4390.214430.544369.533709.095550.00972.504323.916.73e-9  Johnson B
Generic/Johnson.V5501.405537.165467.574698.007204.00889.803617.503.58e-9  Johnson V
Generic/Johnson.R6819.056939.526695.835233.339400.002070.002908.681.88e-9  Johnson R
Generic/Johnson.I8657.448780.668568.897000.0011800.002316.002309.239.24e-10  Johnson I
Generic/Johnson.J12317.3012487.8112094.219693.0015507.003193.551603.943.17e-10  Johnson J
Generic/Johnson.M49749.0550311.1748906.0741250.0062500.0011280.00148.251.8e-12  Johnson M
 

Filter Plots

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This research has made use of the Spanish Virtual Observatory (https://svo.cab.inta-csic.es) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020-112949GB-I00

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