Filter Profile Service
A repository of Filter information for the VO

Generic/Johnson.U3531.13570.630104100657.01564.2  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
λmean (?) : 3531.05 ------- (Angstrom)
λcen (?) : 3520.30 ------- (Angstrom)
λeff (?) : 3570.65 ------- (Angstrom)
λpeak (?) : 3600.00 ------- (Angstrom)
λpivot (?) : 3511.89 ------- (Angstrom)
λphot (?) : 3586.19 ------- (Angstrom)
λmin (?) : 3010.00 ------- (Angstrom)
λmax (?) : 4100.00 ------- (Angstrom)
Weff (?) : 657.00 ------- (Angstrom)
FWHM (?) : 683.73 ------- (Angstrom)
Af/AV (?) : 1.59 ------- ()

Transmission curve

Data file: ascii, VOTable

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.678e-9(erg/cm2/s/A)
  ------- 1564.20(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Generic/Johnson.U/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 8.538e-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)
  ------- 1544.19(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Generic/Johnson.U/ST
 


Filter added: 2010-04-17 05:58:56
Last update: 2018-08-13 11:23:22
Generic/Johnson.B4430.44378.137095550972.74023.8  Johnson B
Generic/Johnson.V5537.25466.146987204889.73562.5  Johnson V
Generic/Johnson.R6939.66695.6523394002070.02814.9  Johnson R
Generic/Johnson.I8780.78565.17000118002316.02282.8  Johnson I
Generic/Johnson.J12487.812100.99693155073193.51571.5  Johnson J
Generic/Johnson.M50311.448900.1412506250011279.5146.7  Johnson M
 

Filter Plots

© SVO,   5020 filters available,   Last update: 2019-07-28
 
If your research benefits from the use of the SVO Filter Profile Service, we would appreciate if you could include the following acknowledgement in your publication:

This research has made use of the SVO Filter Profile Service (http://svo2.cab.inta-csic.es/theory/fps/) supported from the Spanish MINECO through grant AYA2017-84089

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