Filter Profile Service
A repository of Filter information for the VO
Astronomy (6166)Planetary science (336)Earth Obs. (1901)

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 CTIO.

CTIO/DECam.u_filter3552.673580.783648.683034.174039.37764.481852.154.17e-9CTIODECamDECam u filter (filter only)
CTIO/DECam.u3814.333821.683857.113340.174039.75263.622734.635.51e-9CTIODECamDECam u filter (total transmission). DR1
CTIO/DECam.u_old3814.333821.683857.113340.174039.75263.622734.635.51e-9CTIODECamDECam u filter (total transmission). Old.
Filter Description

Filter ID (?) :CTIO/DECam.u_old
Description (?) :DECam u filter (total transmission). Old.
Phot.System (?) :DECam
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :CTIO
Instrument (?) :DECam
Comments (?) :Old throughput measurements: this is provided for legacy use only (e.g. trying to reproduce earlier published results). The DR1 values are to be used by default.
This u filter is identical to the new version.

Mathematical properties

Property Calculated Specified Unit
λref (?) : 3814.33 ------- (Angstrom)
λmean (?) : 3821.68 ------- (Angstrom)
λcen (?) : 3866.99 ------- (Angstrom)
λeff (?) : 3857.11 ------- (Angstrom)
λpeak (?) : 3960.00 ------- (Angstrom)
λpivot (?) : 3814.33 ------- (Angstrom)
λphot (?) : 3860.60 ------- (Angstrom)
λmin (?) : 3340.17 ------- (Angstrom)
λmax (?) : 4039.75 ------- (Angstrom)
Weff (?) : 263.62 ------- (Angstrom)
FWHM (?) : 256.06 ------- (Angstrom)
Af/AV (?) : 1.49 ------- ()
Fsun (?) : ------- ------- (erg/cm2/s/A)


Data file: ascii, VOTable

Reference for filter response: Dark Energy Camera

Transmission components: Filter + Instrument + Atmosphere

Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 5.51055e-9(erg/cm2/s/A)
  ------- 2734.63(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.u_old/Vega

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 7.31682e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.u_old/AB

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 1801.90(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : CTIO/DECam.u_old/ST

Filter added: 2017-04-24 14:36:59
Last update: 2020-08-30 19:07:49
CTIO/DECam.g_filter4714.234773.994674.323928.635553.941313.993941.475.41e-9CTIODECamDECam g filter (filter only)
CTIO/DECam.g_old4808.514862.164770.913938.765527.921004.983905.165.14e-9CTIODECamDECam u filter (total transmission). Old.
CTIO/DECam.g4808.494862.244770.833925.425529.961003.733905.015.14e-9CTIODECamDECam g filter (total transmission). DR1
CTIO/DECam.VR_filter6218.656354.406078.234894.647655.212215.453086.902.5e-9CTIODECamDECam VR filter (filter only)
CTIO/DECam.r_filter6401.566444.806355.205617.747260.481369.083036.312.25e-9CTIODECamDECam r filter (filter only)
CTIO/DECam.r6417.656460.626371.335519.977233.721276.223027.322.24e-9CTIODECamDECam r filter (total transmission). DR1
CTIO/DECam.r_old6420.816463.926374.345506.417238.441262.613025.712.23e-9CTIODECamDECam r filter (total transmission). Old.
CTIO/DECam.i_old7813.507849.427773.456949.708646.251267.092468.471.22e-9CTIODECamDECam i filter (total transmission). Old.
CTIO/DECam.i7814.587850.777774.196948.188645.681281.002467.821.22e-9CTIODECamDECam i filter (total transmission). DR1
CTIO/DECam.i_filter7823.847858.777784.926982.838705.931369.582465.011.22e-9CTIODECamDECam i filter (filter only)
CTIO/DECam.z9168.869199.299157.908341.2010074.261289.332247.338.03e-10CTIODECamDECam z filter (total transmission). DR1
CTIO/DECam.z_old9169.299200.079158.118284.4610102.191307.462247.148.03e-10CTIODECamDECam z filter (total transmission). Old.
CTIO/DECam.z_filter9250.019281.689236.258359.6810165.851422.882241.617.88e-10CTIODECamDECam z filter (filter only)
CTIO/DECam.Y_old9892.559903.479882.739354.9710729.79689.972145.996.59e-10CTIODECamDECam Y filter (total transmission). Old.
CTIO/DECam.Y9896.119906.839886.359364.7710685.78674.512146.186.58e-10CTIODECamDECam Y filter (total transmission). DR1
CTIO/DECam.Y_filter10086.6010102.6110071.299400.0710804.981091.572107.906.23e-10CTIODECamDECam Y filter (filter only)

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)

© SVO,   8400 filters available,   Last update: 2020-09-01
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This research has made use of the SVO Filter Profile Service ( supported from the Spanish MINECO through grant AYA2017-84089

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