Filter Profile Service
A repository of Filter information for the VO

Misc/APASS.B4313.34297.236135113843.13998.3  APASS B filter, defined as identical to GCPD/Johnson.B_Landolt
Misc/APASS.sdss_g4718.94640.4378355491158.43965.9  APASS g filter, defined as identical to SLOAN/SDSS.g
Misc/APASS.V5446.55394.347966455870.63624.1  APASS V filter, defined as identical to GCPD/Johnson.V_Landolt
Misc/APASS.sdss_r6185.26122.3541569891111.23162.0  APASS r filter, defined as identical to SLOAN/SDSS.r
Misc/APASS.sdss_i7499.77439.5668983891044.62602.0  APASS i filter, defined as identical to SLOAN/SDSS.i
X
Misc/APASS.sdss_i
Filter Description

Filter ID (?) :Misc/APASS.sdss_i
Description (?) :APASS i filter, defined as identical to SLOAN/SDSS.i
Phot.System (?) :SDSS
Detector Type (?) :Energy counter
Band Name (?) :i
Obs. Facility (?) :------
Instrument (?) :------
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λmean (?) : 7499.71 ------- (Angstrom)
λcen (?) : 7533.63 ------- (Angstrom)
λeff (?) : 7439.49 ------- (Angstrom)
λpeak (?) : 7105.00 ------- (Angstrom)
λpivot (?) : 7470.62 ------- (Angstrom)
λphot (?) : 7458.50 ------- (Angstrom)
λmin (?) : 6689.47 ------- (Angstrom)
λmax (?) : 8389.45 ------- (Angstrom)
Weff (?) : 1044.55 ------- (Angstrom)
FWHM (?) : 1238.95 ------- (Angstrom)
Af/AV (?) : 0.68 ------- ()

Transmission curve

Data file: ascii, VOTable

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 1.409e-9(erg/cm2/s/A)
  ------- 2602.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Misc/APASS.sdss_i/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 1.967e-9(erg/cm2/s/A)
  3631 3631.00(Jy)
b softening parameter (?) : 0.00000000018
ZP Type (?) : Asinh
PhotCal ID (?) : Misc/APASS.sdss_i/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 6703.35(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Misc/APASS.sdss_i/ST
 

Reference for calibration: SDSS Flux calibration


Filter added: 2015-12-18 11:55:19
Last update: 2018-03-21 17:34:01
Misc/APASS.sdss_z8961.58897.17960108331124.62244.7  APASS z filter, defined as identical to SLOAN/SDSS.z
 

Filter Plots

© SVO,   5065 filters available,   Last update: 2019-11-30
 
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

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