Filter Profile Service
Carlos Rodrigo
A repository of Filter information for the VO.
Grant PID2020-112494GBI00 funded by
Astronomy (7905)Planetary science (616)Earth Obs. (2452)


CFHT :Canada-France-Hawaii Telescope
CFHT/MegaCam :MegaPrime/MegaCam is the wide-field optical imaging facility at CFHT.id:CFHT/MegaCam.a
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full CFHT/MegaCam filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

CFHT/MegaCam.u3676.123692.623747.033147.514018.39452.672027.264.5e-9CFHTMegaCamMegaCam 3rd generation u filter (installed in 2015)
CFHT/MegaCam.u_13799.433817.723884.383317.464263.39525.362673.865.55e-9CFHTMegaCamMegaCam 1st generation u filter (installed in 2002, valid until 2015).
CFHT/MegaCam.g4763.984824.014721.063945.225572.031292.774001.505.29e-9CFHTMegaCamMegaCam 3rd generation g filter (installed in 2015)
CFHT/MegaCam.g_14846.424899.924803.424043.205767.781293.803979.985.08e-9CFHTMegaCamMegaCam 1st generation g filter (installed in 2002, valid until 2015).
CFHT/MegaCam.gri5672.586017.745376.103951.308257.043715.013558.613.32e-9CFHTMegaCamMegaCam 3rd generation gri filter (installed in 2015).
CFHT/MegaCam.r_16245.276278.196207.195401.987051.031120.203143.502.42e-9CFHTMegaCamMegaCam 1st generation r filter (installed in 2002, valid until 2015).
CFHT/MegaCam.r6382.596425.466335.655617.627220.251381.633078.432.27e-9CFHTMegaCamMegaCam 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
λref (?) : 6382.59 ------- (Angstrom)
λmean (?) : 6425.46 ------- (Angstrom)
λcen (?) : 6406.49 ------- (Angstrom)
λeff (?) : 6335.65 ------- (Angstrom)
λpeak (?) : 7080.10 ------- (Angstrom)
λpivot (?) : 6382.59 ------- (Angstrom)
λphot (?) : 6364.36 ------- (Angstrom)
λmin (?) : 5617.62 ------- (Angstrom)
λmax (?) : 7220.25 ------- (Angstrom)
Weff (?) : 1381.63 ------- (Angstrom)
FWHM (?) : 1477.66 ------- (Angstrom)
Af/AV (?) : 0.84 ------- ()
Fsun (?) : 162.07 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: MegaPipe

Transmission components: Filter + CCD + Instrument + Other optical components + Atmosphereid:CFHT/MegaCam.r
 

You can download here the GaiaXPy base XML file for the full CFHT/MegaCam filter set.
Please, take a look to GaiaXPy documentation for more information.

- GaiaXPy base XML file.

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.26546e-9(erg/cm2/s/A)
  ------- 3078.43(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CFHT/MegaCam.r/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.6721e-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)
  ------- 4934.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CFHT/MegaCam.r/ST
 


Filter added: 2013-01-26 13:10:26
Last update: 2021-07-27 18:54:22
CFHT/MegaCam.i_27542.837584.467497.316664.658563.891409.392577.071.36e-9CFHTMegaCamMegaCam 2nd generation g filter (installed in 2007, valid until 2015).
CFHT/MegaCam.i_17653.537690.497613.756742.258774.101220.842531.341.3e-9CFHTMegaCamMegaCam 1st generation g filter (installed in 2002, valid until 2007).
CFHT/MegaCam.i7682.937721.067641.206912.368638.341342.042520.291.28e-9CFHTMegaCamMegaCam 3rd generation i filter (installed in 2015)
CFHT/MegaCam.z_18815.008857.618793.447959.7410561.541040.082246.438.67e-10CFHTMegaCamMegaCam 1st generation z filter (installed in 2002, valid until 2015).
CFHT/MegaCam.z8979.629004.788969.538358.1010075.78788.112239.548.33e-10CFHTMegaCamMegaCam 3rd generation z filter (installed in 2015)
 

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)

© SVO,   (SVO Privacy Policy),   10970 filters available,   Last update: 2023-06-19
 
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 "Carlos Rodrigo", 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: