Filter Profile Service
A repository of Filter information for the VO.
Grant PID2020-112494GBI00 funded by
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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.id:Keck/ESI.a
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full Keck/ESI filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

Keck/ESI.B_fil4444.444480.854433.103713.955410.02962.674078.776.19e-9KeckESIESI B filter (filter only)
Keck/ESI.B4481.834516.454467.553733.295413.35913.054092.406.11e-9KeckESIESI B filter (+CCD)
Keck/ESI.V5441.955464.405420.334886.786398.46804.793651.573.7e-9KeckESIESI V filter (+CCD)
Keck/ESI.V_fil5443.955466.465422.254886.606400.01808.083650.313.69e-9KeckESIESI V filter (filter only)
Keck/ESI.R6649.056676.856620.715989.687424.001050.022925.851.98e-9KeckESIESI R filter (+CCD)
Keck/ESI.R_fil6656.136684.126627.625991.337424.961038.772922.941.98e-9KeckESIESI R filter (filter only)
X
Keck/ESI.R_fil
Filter Description

Filter ID (?) :Keck/ESI.R_fil
Description (?) :ESI R 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 (?) : 6656.13 ------- (Angstrom)
λmean (?) : 6684.12 ------- (Angstrom)
λcen (?) : 6697.70 ------- (Angstrom)
λeff (?) : 6627.62 ------- (Angstrom)
λpeak (?) : 6921.81 ------- (Angstrom)
λpivot (?) : 6656.13 ------- (Angstrom)
λphot (?) : 6646.38 ------- (Angstrom)
λmin (?) : 5991.33 ------- (Angstrom)
λmax (?) : 7424.96 ------- (Angstrom)
Weff (?) : 1038.77 ------- (Angstrom)
FWHM (?) : 1288.51 ------- (Angstrom)
Af/AV (?) : 0.79 ------- ()
Fsun (?) : 153.10 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: ESI

Transmission components: Filterid:Keck/ESI.R_fil
 

You can download here the GaiaXPy base XML file for the full Keck/ESI 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 (?) : ------- 1.97787e-9(erg/cm2/s/A)
  ------- 2922.94(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.R_fil/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.45699e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.R_fil/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 5365.97(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : Keck/ESI.R_fil/ST
 


Filter added: 2021-04-12 13:21:10
Last update: 2021-07-27 20:03:57
 

Filter Plots

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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 Spanish Virtual Observatory (https://svo.cab.inta-csic.es) 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: