Filter Profile Service
A repository of Filter information for the VO
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Keck :W.M. Keck Observatory
Keck/ESI :The Echellette Spectrograph and Imager (ESI) is a visible-wavelength, faint-object, imager and single-slit spectrograph in operation at the Cassegrain focus of the Keck II telescope since 1999.

Keck/ESI.B_fil4444.444480.854433.103709.045399.24962.674078.776.19e-9KeckESIESI B filter (filter only)
Keck/ESI.B4481.834516.454467.553729.015404.31913.054092.406.11e-9KeckESIESI B filter (+CCD)
Keck/ESI.V5441.955464.405420.334885.506385.01804.793651.573.7e-9KeckESIESI V filter (+CCD)
Keck/ESI.V_fil5443.955466.465422.254885.336386.88808.083650.313.69e-9KeckESIESI V filter (filter only)
X
Keck/ESI.V_fil
Filter Description

Filter ID (?) :Keck/ESI.V_fil
Description (?) :ESI V filter (filter only)
Phot.System (?) :ESI
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :Keck
Instrument (?) :ESI
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 5443.95 ------- (Angstrom)
λmean (?) : 5466.46 ------- (Angstrom)
λcen (?) : 5411.95 ------- (Angstrom)
λeff (?) : 5422.25 ------- (Angstrom)
λpeak (?) : 5294.57 ------- (Angstrom)
λpivot (?) : 5443.95 ------- (Angstrom)
λphot (?) : 5436.74 ------- (Angstrom)
λmin (?) : 4885.33 ------- (Angstrom)
λmax (?) : 6386.88 ------- (Angstrom)
Weff (?) : 808.08 ------- (Angstrom)
FWHM (?) : 790.19 ------- (Angstrom)
Af/AV (?) : 1.02 ------- ()
Fsun (?) : 185.69 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: ESI

Transmission components: Filter

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.69251e-9(erg/cm2/s/A)
  ------- 3650.31(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.V_fil/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.67298e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.V_fil/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 3589.50(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.V_fil/ST
 


Filter added: 2021-04-12 13:21:31
Last update: 2021-04-12 13:21:31
Keck/ESI.R6649.056676.856620.715989.257421.661050.022925.851.98e-9KeckESIESI R filter (+CCD)
Keck/ESI.R_fil6656.136684.126627.625991.337423.321038.772922.941.98e-9KeckESIESI R filter (filter only)
 

Filter Plots

© SVO,   10501 filters available,   Last update: 2021-10-25
 
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: