Filter Profile Service
A repository of Filter information for the VO

CFHT :Canada-France-Hawaii Telescope
CFHT/MegaCam :MegaPrime/MegaCam is the wide-field optical imaging facility at CFHT.

CFHT/MegaCam.u3692.63751.931434018452.72149.3CFHTMegaCamMegaCam 3rd generation u filter (installed in 2015)
CFHT/MegaCam.u_13817.73884.733154262525.42762.0CFHTMegaCamMegaCam 1st generation u filter (installed in 2002, valid until 2015).
CFHT/MegaCam.g4824.04722.4393955711292.83918.9CFHTMegaCamMegaCam 3rd generation g filter (installed in 2015)
CFHT/MegaCam.g_14899.94804.1403857611293.83902.4CFHTMegaCamMegaCam 1st generation g filter (installed in 2002, valid until 2015).
CFHT/MegaCam.gri6017.85381.3395182573715.03198.8CFHTMegaCamMegaCam 3rd generation gri filter (installed in 2015).
CFHT/MegaCam.r_16278.26207.9539470461120.23115.3CFHTMegaCamMegaCam 1st generation r filter (installed in 2002, valid until 2015).
CFHT/MegaCam.r6425.56336.5561572181381.63045.5CFHTMegaCamMegaCam 3rd generation r filter (installed in 2015)
X
CFHT/MegaCam.r
Filter Description

Filter ID (?) :CFHT/MegaCam.r
Description (?) :MegaCam 3rd generation r filter (installed in 2015)
Phot.System (?) :MegaCam
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :CFHT
Instrument (?) :MegaCam
Comments (?) :The filter response includes the full telescope (mirror+optics+CCD) response and also 1.25 airmasses of atmospheric attenuation.

 
Mathematical properties

Property Calculated Specified Unit
λmean (?) : 6425.46 ------- (Angstrom)
λcen (?) : 6403.70 ------- (Angstrom)
λeff (?) : 6336.47 ------- (Angstrom)
λpeak (?) : 5760.70 ------- (Angstrom)
λpivot (?) : 6382.58 ------- (Angstrom)
λphot (?) : 6365.18 ------- (Angstrom)
λmin (?) : 5614.81 ------- (Angstrom)
λmax (?) : 7218.06 ------- (Angstrom)
Weff (?) : 1381.63 ------- (Angstrom)
FWHM (?) : 1478.52 ------- (Angstrom)
Af/AV (?) : 0.85 ------- ()
Fsun (?) : ------- ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: MegaPipe

Transmission components: Filter + CCD + Instrument + Other optical components + Atmosphere

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.274e-9(erg/cm2/s/A)
  ------- 3045.54(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CFHT/MegaCam.r/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.711e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CFHT/MegaCam.r/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 4862.95(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CFHT/MegaCam.r/ST
 


Filter added: 2013-01-26 13:10:26
Last update: 2020-05-01 08:40:31
CFHT/MegaCam.i_27584.57498.3666385551409.52569.5CFHTMegaCamMegaCam 2nd generation g filter (installed in 2007, valid until 2015).
CFHT/MegaCam.i_17690.57613.7674287741220.82528.6CFHTMegaCamMegaCam 1st generation g filter (installed in 2002, valid until 2007).
CFHT/MegaCam.i7721.17641.5691286311342.02516.8CFHTMegaCamMegaCam 3rd generation i filter (installed in 2015)
CFHT/MegaCam.z_18857.68794.57956105521040.12251.8CFHTMegaCamMegaCam 1st generation z filter (installed in 2002, valid until 2015).
CFHT/MegaCam.z9004.88972.6835710073788.12246.4CFHTMegaCamMegaCam 3rd generation z filter (installed in 2015)
 

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)

© SVO,   6382 filters available,   Last update: 2020-08-15
 
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

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