Filter Profile Service
A repository of Filter information for the VO
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APO :Apache Point Observatory.
APO/SDSS :APO SDSS filters.

APO/SDSS.u3501.003517.423542.083042.103985.02563.561456.583.56e-9APO APO SDSS u filter
X
APO/SDSS.u
Filter Description

Filter ID (?) :APO/SDSS.u
Description (?) :APO SDSS u filter
Phot.System (?) :------
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :APO
Instrument (?) :------
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 3501.00 ------- (Angstrom)
λmean (?) : 3517.42 ------- (Angstrom)
λcen (?) : 3508.52 ------- (Angstrom)
λeff (?) : 3542.08 ------- (Angstrom)
λpeak (?) : 3526.00 ------- (Angstrom)
λpivot (?) : 3501.00 ------- (Angstrom)
λphot (?) : 3554.64 ------- (Angstrom)
λmin (?) : 3042.10 ------- (Angstrom)
λmax (?) : 3985.02 ------- (Angstrom)
Weff (?) : 563.56 ------- (Angstrom)
FWHM (?) : 614.25 ------- (Angstrom)
Af/AV (?) : 1.62 ------- ()
Fsun (?) : 99.48 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: APO Filter Inventory

Transmission components: Filter

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.56262e-9(erg/cm2/s/A)
  ------- 1456.58(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/SDSS.u/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 8.881e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/SDSS.u/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 1484.54(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/SDSS.u/ST
 


Filter added: 2021-03-18 12:07:47
Last update: 2021-03-18 12:07:47
APO/SDSS.g4763.084820.064723.573858.455685.961264.483996.255.28e-9APO APO SDSS g filter
APO/SDSS.r6247.036287.126201.755405.067172.221253.773148.752.42e-9APO APO SDSS r filter
APO/SDSS.i7718.297759.397672.606720.668725.781478.922508.911.26e-9APO APO SDSS i filter
APO/SDSS.z10829.8411128.8210500.638041.5413500.004306.711909.064.88e-10APO APO SDSS z filter
 

Filter Plots

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

and we would appreciate if you could include the following references in your publication: