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

CTIO :Cerro Tololo Inter-American Observatory
CTIO/DECam :Dark Energy Camera (DECam) is a high-performance, wide-field CCD imager mounted at the prime focus of the Blanco 4-m telescope at
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full CTIO/DECam filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

CTIO/DECam.u_filter3552.673580.783648.483035.594039.63764.481780.794.23e-9CTIODECamDECam u filter (filter only)
CTIO/DECam.u3814.333821.683856.883331.214070.00263.623631.007.48e-9CTIODECamDECam u filter (total transmission). DR1
CTIO/DECam.u_old3814.333821.683856.883342.084039.91263.622709.845.58e-9CTIODECamDECam u filter (total transmission). Old.
CTIO/DECam.g_filter4714.234773.994673.243931.245554.191313.994021.805.43e-9CTIODECamDECam g filter (filter only)
CTIO/DECam.g_old4808.514862.164770.063941.565528.131004.973976.905.16e-9CTIODECamDECam u filter (total transmission). Old.
CTIO/DECam.g4808.494862.244769.903850.485574.421003.723631.004.71e-9CTIODECamDECam g filter (total transmission). DR1
CTIO/DECam.VR_filter6218.656354.406075.854902.547656.342215.463223.172.5e-9CTIODECamDECam VR filter (filter only)
CTIO/DECam.r_filter6401.576444.806354.325620.207261.451369.093069.522.25e-9CTIODECamDECam r filter (filter only)
CTIO/DECam.r6417.656460.636370.445404.757295.861276.223631.002.64e-9CTIODECamDECam r filter (total transmission). DR1
CTIO/DECam.r_old6420.816463.926373.475540.727239.521262.613058.462.22e-9CTIODECamDECam r filter (total transmission). Old.
CTIO/DECam.i_old7813.527849.447773.536958.988646.471267.112471.091.21e-9CTIODECamDECam i filter (total transmission). Old.
CTIO/DECam.i7814.587850.777774.306793.738694.711281.013631.001.78e-9CTIODECamDECam i filter (total transmission). DR1
CTIO/DECam.i_filter7823.847858.777785.146988.248710.001369.582467.131.21e-9CTIODECamDECam i filter (filter only)
CTIO/DECam.z9168.859199.289154.888252.4210145.171289.353631.001.29e-9CTIODECamDECam z filter (total transmission). DR1
Filter Description

Filter ID (?) :CTIO/DECam.z
Description (?) :DECam z filter (total transmission). DR1
Phot.System (?) :DECam
Detector Type (?) :Photon counter
Band Name (?) :z
Obs. Facility (?) :CTIO
Instrument (?) :DECam
Comments (?) :The system response includes the total throughput of the system (instrument + atmosphere).

Mathematical properties

Property Calculated Specified Unit
λref (?) : 9168.85 ------- (Angstrom)
λmean (?) : 9199.28 ------- (Angstrom)
λcen (?) : 9234.17 ------- (Angstrom)
λeff (?) : 9154.88 ------- (Angstrom)
λpeak (?) : 9205.00 ------- (Angstrom)
λpivot (?) : 9168.85 ------- (Angstrom)
λphot (?) : 9174.83 ------- (Angstrom)
λmin (?) : 8252.42 ------- (Angstrom)
λmax (?) : 10145.17 ------- (Angstrom)
Weff (?) : 1289.35 ------- (Angstrom)
FWHM (?) : 1476.78 ------- (Angstrom)
Af/AV (?) : 0.494 ------- ()
Fsun (?) : 86.12 ------- (erg/cm2/s/A)


Data file: ascii, VOTable

Reference for filter response: Dark Energy Camera

Transmission components: Filter + Instrument + Atmosphereid:CTIO/DECam.z

You can download here the GaiaXPy base XML file for the full CTIO/DECam 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 (?) : ------- 7.96588e-10(erg/cm2/s/A)
  ------- 2233.79(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.z/Vega

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 1.29484e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.z/AB

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 10182.06(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.z/ST

Filter added: 2020-01-11 14:30:03
Last update: 2022-08-30 17:02:40
CTIO/DECam.z_old9169.289200.069155.108285.2210103.561307.532233.567.96e-10CTIODECamDECam z filter (total transmission). Old.
CTIO/DECam.z_filter9250.019281.689233.498363.0310169.171422.882227.057.8e-10CTIODECamDECam z filter (filter only)
CTIO/DECam.Y_old9892.559903.469882.839357.3210731.14689.972123.616.51e-10CTIODECamDECam Y filter (total transmission). Old.
CTIO/DECam.Y9896.119906.839886.459301.5310698.80674.513631.001.11e-9CTIODECamDECam Y filter (total transmission). DR1
CTIO/DECam.Y_filter10086.6010102.6110071.129404.2810806.111091.572087.356.15e-10CTIODECamDECam Y filter (filter only)

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)

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This research has made use of the Spanish Virtual Observatory ( 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: