Filter Profile Service
A repository of Filter information for the VO.
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APO :Apache Point Observatory.
APO/Balzers :APO Balzers neutral density filters.id:APO/Balzers.a

APO/Balzers.ND87045.228395.996267.363000.0012000.005708.732764.501.67e-9APO Balzers neutral density ND8 filter
APO/Balzers.ND57032.008400.426258.993000.0012000.005654.652751.471.67e-9APO Balzers neutral density ND5 filter
APO/Balzers.ND47067.988417.896290.813000.0012000.005661.932753.311.65e-9APO Balzers neutral density ND4 filter
APO/Balzers.ND77063.298427.396286.643000.0012000.005603.022744.141.65e-9APO Balzers neutral density ND7 filter
X
APO/Balzers.ND7
Filter Description

Filter ID (?) :APO/Balzers.ND7
Description (?) :Balzers neutral density ND7 filter
Phot.System (?) :------
Detector Type (?) :Photon counter
Band Name (?) :------
Obs. Facility (?) :APO
Instrument (?) :------
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 7063.29 ------- (Angstrom)
λmean (?) : 8427.39 ------- (Angstrom)
λcen (?) : 8962.07 ------- (Angstrom)
λeff (?) : 6286.64 ------- (Angstrom)
λpeak (?) : 11930.00 ------- (Angstrom)
λpivot (?) : 7063.29 ------- (Angstrom)
λphot (?) : 7082.04 ------- (Angstrom)
λmin (?) : 3000.00 ------- (Angstrom)
λmax (?) : 12000.00 ------- (Angstrom)
Weff (?) : 5603.02 ------- (Angstrom)
FWHM (?) : 6075.85 ------- (Angstrom)
Af/AV (?) : 0.723 ------- ()
Fsun (?) : 105.77 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: APO Filter Inventory

Transmission components: Filterid:APO/Balzers.ND7

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 1.64897e-9(erg/cm2/s/A)
  ------- 2744.14(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/Balzers.ND7/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.18189e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/Balzers.ND7/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 6042.54(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : APO/Balzers.ND7/ST
 


Filter added: 2021-03-18 11:42:40
Last update: 2021-07-27 18:35:57
APO/Balzers.ND17099.278433.996317.383000.0012000.005645.352754.751.64e-9APO Balzers neutral density ND1 filter
APO/Balzers.ND107065.858438.506278.803000.0012000.005504.472747.381.65e-9APO Balzers neutral density ND10 filter
APO/Balzers.ND67094.278451.846310.663000.0012000.005532.082742.241.63e-9APO Balzers neutral density ND6 filter
APO/Balzers.ND37126.478469.136342.323000.0012000.005529.552738.771.62e-9APO Balzers neutral density ND3 filter
APO/Balzers.ND97134.658492.516342.523000.0012000.005423.972730.871.61e-9APO Balzers neutral density ND9 filter
APO/Balzers.ND27156.138496.326365.593000.0012000.005433.832733.421.6e-9APO Balzers neutral density ND2 filter
APO/Balzers.ND117344.718647.036512.233000.0012000.005008.972717.001.51e-9APO Balzers neutral density ND11 filter
APO/Balzers.ND127545.638812.346683.293000.0012000.004574.772679.031.41e-9APO Balzers neutral density ND12 filter
 

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 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: