Filter Profile Service
A repository of Filter information for the VO
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Misc :Miscellaneous. Filters not included in another category.
Misc/APASS :APASS filters. Defined in terms of SDSS and Johnson systems.

Misc/APASS.B4284.074313.354297.173613.135112.72843.113998.346.49e-9  APASS B filter, defined as identical to GCPD/Johnson.B_Landolt
Misc/APASS.sdss_g4669.534718.874640.423782.545549.261158.373965.955.52e-9  APASS g filter, defined as identical to SLOAN/SDSS.g
Misc/APASS.V5419.175446.495394.294796.166454.89870.583624.133.73e-9  APASS V filter, defined as identical to GCPD/Johnson.V_Landolt
Misc/APASS.sdss_r6156.336185.196122.335415.346989.141111.183161.982.53e-9  APASS r filter, defined as identical to SLOAN/SDSS.r
Misc/APASS.sdss_i7470.627499.717439.496689.478389.451044.552602.001.41e-9  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
λref (?) : 7470.62 ------- (Angstrom)
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 (?) : 0.675 ------- ()
Fsun (?) : 127.38 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 1.40943e-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 (?) : ------- 1.9668e-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: 2020-12-10 16:33:03
Misc/APASS.sdss_z8917.808961.498897.067960.4410833.251124.592244.678.5e-10  APASS z filter, defined as identical to SLOAN/SDSS.z
 

Filter Plots

© SVO,   8999 filters available,   Last update: 2021-01-15
 
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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