Table information for 'filters.main'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

This table provides photometric filter characteristics derived from the SVO Filter Profile Service https://svo2.cab.inta-csic.es/svo/theory/fps/. Each row corresponds to a single photometric filter and contains basic bandpass information.

Exposing these data through TAP enables ADQL queries joining filter data with photometric datasets.

The table contains a selected subset of filters used in the published light-curve collections. The full transmission curves can be retrieved from the original SVO Filter Profile Service using the fps_url column.

These data are republished with permission from the SVO Filter Profile Service. If this table contributes to your research, please acknowledge the original service and cite the following references:

The SVO Filter Profile Service is funded by MCIN/AEI/10.13039/501100011033/ through grant PID2023-146210NB-I00.

For a list of all services and tables belonging to this table's resource, see Information on resource 'Filter Profiles'

Resource Reference URL: Resource info

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference 2020sea..confE.182R (ADS BibTeX entry for the publication) either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:filters_main,
  year=2026,
  title={Filter Profiles},
  author={Rodrigo, C. and Solano, E.},
  url={https://skvo.science.upjs.sk/tableinfo/filters.main},
  howpublished={{VO} resource provided by the Pavol Jozef Šafárik University Archive}
}

If this table contributes to your research, please acknowledge the original service and cite the following references:

Rodrigo, C., Cruz, P., Aguilar, J.F., et al. 2024, 2024A&A...689A..93R;
The SVO Filter Profile Service. Rodrigo, C., Solano, E., Bayo, A., 2012, 2012ivoa.rept.1015R;
The SVO Filter Profile Service. Rodrigo, C., Solano, E., 2020, 2020sea..confE.182R.

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
band band Human-readable name of the photometric band N/A instr.bandpass
band_ucd Band ucd UCD of the photometric band N/A meta.ucd
description description Description of the filter N/A meta.note
detector_type det_type Detector type: 0 = energy counter, 1 = photon counter. N/A meta.code
filter_id filter_id Filter Unique identifier within SVO Filter Profiles Service N/A meta.ref.ivoid
fps_identifier fps_id Identifier of the Filter Profile Service providing the data. N/A meta.ref.ivorn
fps_url FPS_URL URL to the SVO Filter Profile Service query returning the filter profile and metadata for this filter. N/A meta.ref.url
fsun fsun Solar flux integrated over the filter band. erg/(cm**2.s.Angstrom) phot.flux.density
fwhm fwhm Full width at half maximum. Defined as the difference between the two wavelengths for which filter transmission is half maximum. Angstrom instr.bandwidth
magsys magsys Magnitude system (e.g., Vega, AB, ST). N/A meta.code
phot_system phot_system Photometric system to which the filter belongs (e.g., Bessell). N/A N/A
photcal_id photcal_id Identifier of the photometric calibration. N/A meta.id
wavelength_cen lambda_cen Central wavelength. Defined as the central wavelength between the two points defining FWMH. Angstrom em.wl
wavelength_eff lambda_eff Effective wavelength. Defined as integ[x*filter(x)*vega(x) dx]/integ[filter(x)*vega(x) dx] Angstrom em.wl.effective
wavelength_max lambda_max Maximum wavelength. Calculated by SVO FP service as the last lambda value with a transmission at least 1% of maximum transmission. Angstrom em.wl;stat.max
wavelength_mean lambda_mean Mean wavelength. Defined as integ[x*filter(x) dx]/integ[filter(x) dx] Angstrom em.wl
wavelength_min lambda_min Minimum wavelength. Calculated by the SVO FP service as the first lambda value with a transmission at least 1% of maximum transmission. Angstrom em.wl;stat.min
wavelength_peak lambda_peak Peak wavelength. Defined as the lambda value with larger transmission. Angstrom em.wl
wavelength_phot lambda_phot Photon distribution based effective wavelength. Defined as integ[x^2*filter(x)*vega(x) dx]/integ[x*filter(x)*vega(x) dx]. Angstrom em.wl
wavelength_pivot lambda_pivot Pivot wavelength. Defined as sqrt{integ[x*filter(x) dx]/integ[filter(x) dx/x]}. Angstrom em.wl
wavelength_ref lambda_ref Reference wavelength. Defined as the same than the pivot wavelength. Angstrom em.wl;meta.main
width_eff width_eff Effective width. Defined as integ[x*filter(x) dx]. Equivalent to the horizontal size of a rectangle with height equal to maximum transmission and with the same area that the one covered by the filter transmission curve. Angstrom instr.bandwidth
zeropoint zp Photometric zero point in flux units. Jy phot.flux.density
zeropoint_type zp_type Type of zero point definition (e.g., Pogson). N/A meta.code
zeropoint_unit zp_u Photometric zero point unit N/A meta.unit

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

VO nerds may sometimes need VOResource XML for this table.