SVO Filter Profile Service

Generic :Generic filters, not directly associated to any specific instrument.
Generic/Johnson :Johnson generic photometric systemid:Generic/Johnson.a
→ GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full Generic/Johnson filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

Generic filters: Bessell Bessell_JHKLM Cousins Johnson Johnson_13col Johnson_UBVRIJHKL Stromgren

Filter ID

λ_ref

λ_mean

λ_eff

λ_min

λ_max

W_eff

ZP_ν

ZP_λ

3511.89

3531.05

3551.05

3010.00

4100.00

657.00

1438.73

3.5e-9

Johnson U

Generic/Johnson.B

4390.21

4430.54

4369.53

3709.09

5550.00

972.50

4323.91

6.73e-9

Johnson B

Generic/Johnson.V

5501.40

5537.16

5467.57

4698.00

7204.00

889.80

3617.50

3.58e-9

Johnson V

Generic/Johnson.R

6819.05

6939.52

6695.83

5233.33

9400.00

2070.00

2908.68

1.88e-9

Johnson R

Generic/Johnson.I

8657.44

8780.66

8568.89

7000.00

11800.00

2316.00

2309.23

9.24e-10

Johnson I

Generic/Johnson.I

Filter Description

Filter ID (?) : Generic/Johnson.I

Description (?) : Johnson I

Phot.System (?) : Johnson

Detector Type (?) : Energy counter

Band Name (?) : I

Obs. Facility (?) : ------

Instrument (?) : ------

Comments (?) : Johnson I generic filter

Mathematical properties

Property Calculated Specified Unit

λ_ref (?) : 8657.44 ------- (Angstrom)

λ_mean (?) : 8780.66 ------- (Angstrom)

λ_cen (?) : 8642.73 ------- (Angstrom)

λ_eff (?) : 8568.89 ------- (Angstrom)

λ_peak (?) : 8600.00 ------- (Angstrom)

λ_pivot (?) : 8657.44 ------- (Angstrom)

λ_phot (?) : 8647.59 ------- (Angstrom)

λ_min (?) : 7000.00 ------- (Angstrom)

λ_max (?) : 11800.00 ------- (Angstrom)

W_eff (?) : 2316.00 ------- (Angstrom)

FWHM (?) : 2205.45 ------- (Angstrom)

A_f/A_V (?) : 0.535 ------- ()

F_sun (?) : 96.57 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Transmission components: Filterid:Generic/Johnson.I

You can download here the GaiaXPy base XML file for the full Generic/Johnson filter set.
Please, take a look to GaiaXPy documentation for more information.

- GaiaXPy base XML file.

Calibration properties

Vega System
Property Specified Calculated Unit
Zero Point (?) : ------- 9.23651e-10 (erg/cm2/s/A)

------- 2309.23 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : Generic/Johnson.I/Vega

AB System
Property Specified Calculated Unit
Zero Point (?) : ------- 1.45234e-9 (erg/cm2/s/A)

------- 3631.00 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : Generic/Johnson.I/AB

ST System
Property Specified Calculated Unit
Zero Point (?) : ------- 3.631e-9 (erg/cm2/s/A)

------- 9077.89 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : Generic/Johnson.I/ST

Filter added: 2010-04-17 05:58:56
Last update: 2021-07-27 19:15:00

Generic/Johnson.J

12317.30

12487.81

12094.21

9693.00

15507.00

3193.55

1603.94

3.17e-10

Johnson J

Generic/Johnson.M

49749.05

50311.17

48906.07

41250.00

62500.00

11280.00

148.25

1.8e-12

Johnson M

Filter Plots

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 "Carlos Rodrigo", 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:

The SVO Filter Profile Service. Rodrigo, C., Solano, E., Bayo, A., 2012; https://ui.adsabs.harvard.edu/abs/2012ivoa.rept.1015R/abstract
The SVO Filter Profile Service. Rodrigo, C., Solano, E., 2020; https://ui.adsabs.harvard.edu/abs/2020sea..confE.182R/abstract