| GTC/OSIRIS.sdss_g_filter | 4787.58 | 4847.55 | 4744.53 | 3800.00 | 5816.63 | 1321.19 | 3986.95 | 5.21e-9 | GTC | Osiris | GTC, Osiris, SDSS g (filter only) |
| GTC/OSIRIS.sdss_g | 4852.64 | 4910.44 | 4809.54 | 3944.04 | 5822.14 | 1179.72 | 3955.80 | 5.04e-9 | GTC | | GTC, OSIRIS, SDSS g filter (full trans) |
| GTC/OSIRIS.F643_filter | 6429.19 | 6431.23 | 6423.13 | 6059.30 | 6668.63 | 289.09 | 2963.57 | 2.15e-9 | GTC | Osiris | GTC, Osiris, F643 (filter only) |
| GTC/OSIRIS.F643 | 6429.66 | 6431.71 | 6423.57 | 6145.61 | 6670.75 | 287.62 | 2962.47 | 2.15e-9 | GTC | OSIRIS | GTC, OSIRIS, F643 filter (full trans) |
| GTC/OSIRIS.F643 | Filter Description | Filter ID (?) : | GTC/OSIRIS.F643 |
| Description (?) : | GTC, OSIRIS, F643 filter (full trans) |
| Phot.System (?) : | OSIRIS |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | GTC |
| Instrument (?) : | OSIRIS |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
6429.66 | ------- | (Angstrom) |
| λmean (?) : |
6431.71 | ------- | (Angstrom) |
| λcen (?) : |
6433.30 | ------- | (Angstrom) |
| λeff (?) : |
6423.57 | ------- | (Angstrom) |
| λpeak (?) : |
6530.00 | ------- | (Angstrom) |
| λpivot (?) : |
6429.66 | ------- | (Angstrom) |
| λphot (?) : |
6424.90 | ------- | (Angstrom) |
| λmin (?) : |
6145.61 | ------- | (Angstrom) |
| λmax (?) : |
6670.75 | ------- | (Angstrom) |
| Weff (?) : |
287.62 | ------- | (Angstrom) |
| FWHM (?) : |
288.50 | ------- | (Angstrom) |
| Af/AV (?) : |
0.832 | ------- | () |
| Fsun (?) : |
161.39 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
OSIRIS Transmission components: Filter + Instrument + Atmosphereid:GTC/OSIRIS.F643
You can download here the GaiaXPy base XML file for the full GTC/OSIRIS 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 (?) : |
------- |
2.14832e-9 | (erg/cm2/s/A) |
| |
------- |
2962.47 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GTC/OSIRIS.F643/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.63312e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GTC/OSIRIS.F643/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
5007.04 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GTC/OSIRIS.F643/ST |
| |
|
Filter added: 2019-09-14 15:16:26
Last update: 2021-07-27 19:26:15 |
| GTC/OSIRIS.sdss_r_filter | 6400.18 | 6464.79 | 6330.66 | 5280.00 | 7500.00 | 1568.89 | 3083.58 | 2.26e-9 | GTC | Osiris | GTC, Osiris, SDSS r (filter only) |
| GTC/OSIRIS.sdss_r | 6417.68 | 6481.65 | 6348.65 | 5280.00 | 7500.00 | 1522.03 | 3073.93 | 2.24e-9 | GTC | | GTC, OSIRIS, SDSS r filter (full trans) |
| GTC/OSIRIS.F648_filter | 6484.70 | 6486.51 | 6479.37 | 6210.00 | 6730.00 | 277.47 | 2897.23 | 2.07e-9 | GTC | Osiris | GTC, Osiris, F648 (filter only) |
| GTC/OSIRIS.F648 | 6485.42 | 6487.23 | 6480.09 | 6211.13 | 6730.00 | 278.11 | 2896.00 | 2.06e-9 | GTC | OSIRIS | GTC, OSIRIS, F648 filter (full trans) |
| GTC/OSIRIS.F657_filter | 6569.42 | 6572.47 | 6566.38 | 6269.27 | 6837.71 | 354.86 | 2881.73 | 2.0e-9 | GTC | Osiris | GTC, Osiris, F657 (filter only) |
| GTC/OSIRIS.F657 | 6570.91 | 6573.96 | 6567.92 | 6271.64 | 6838.20 | 351.04 | 2881.25 | 2.0e-9 | GTC | OSIRIS | GTC, OSIRIS, F657 filter (full trans) |
| GTC/OSIRIS.F666_filter | 6675.11 | 6677.75 | 6676.23 | 6390.00 | 6918.37 | 352.34 | 2836.38 | 1.91e-9 | GTC | Osiris | GTC, Osiris, F666 (filter only) |
| GTC/OSIRIS.F666 | 6676.24 | 6678.88 | 6677.36 | 6390.00 | 6918.67 | 351.62 | 2837.07 | 1.91e-9 | GTC | OSIRIS | GTC, OSIRIS, F666 filter (full trans) |
| GTC/OSIRIS.F680_filter | 6789.98 | 6793.36 | 6788.82 | 6470.00 | 7068.49 | 384.82 | 2856.08 | 1.86e-9 | GTC | Osiris | GTC, Osiris, F680 (filter only) |
| GTC/OSIRIS.F680 | 6791.27 | 6794.64 | 6790.08 | 6470.84 | 7068.42 | 381.18 | 2856.17 | 1.86e-9 | GTC | OSIRIS | GTC, OSIRIS, F680 filter (full trans) |
| GTC/OSIRIS.F694_filter | 6947.05 | 6950.93 | 6942.84 | 6626.33 | 7270.00 | 428.97 | 2816.45 | 1.75e-9 | GTC | Osiris | GTC, Osiris, F694 (filter only) |
| GTC/OSIRIS.F694 | 6947.35 | 6951.21 | 6943.17 | 6629.94 | 7270.00 | 424.71 | 2816.33 | 1.75e-9 | GTC | OSIRIS | GTC, OSIRIS, F694 filter (full trans) |
| GTC/OSIRIS.F709 | 7076.92 | 7080.61 | 7072.85 | 6732.43 | 7384.56 | 425.82 | 2759.01 | 1.65e-9 | GTC | OSIRIS | GTC, OSIRIS, F709 filter (full trans) |
| GTC/OSIRIS.F709_filter | 7077.55 | 7081.25 | 7073.48 | 6732.31 | 7385.01 | 423.21 | 2758.72 | 1.65e-9 | GTC | Osiris | GTC, Osiris, F709 (filter only) |
| GTC/OSIRIS.F723 | 7228.33 | 7231.69 | 7224.68 | 6902.20 | 7534.70 | 395.30 | 2692.32 | 1.54e-9 | GTC | OSIRIS | GTC, OSIRIS, F723 filter (full trans) |
| GTC/OSIRIS.F723_filter | 7229.11 | 7232.45 | 7225.45 | 6902.51 | 7535.29 | 394.87 | 2691.99 | 1.54e-9 | GTC | Osiris | GTC, Osiris, F723 (filter only) |
| GTC/OSIRIS.F738 | 7371.35 | 7375.02 | 7367.28 | 7030.91 | 7665.67 | 424.90 | 2632.78 | 1.45e-9 | GTC | OSIRIS | GTC, OSIRIS, F738 filter (full trans) |
| GTC/OSIRIS.F738_filter | 7372.41 | 7376.09 | 7368.34 | 7031.92 | 7666.05 | 422.13 | 2632.34 | 1.45e-9 | GTC | Osiris | GTC, Osiris, F738 (filter only) |
| GTC/OSIRIS.F754 | 7537.42 | 7541.46 | 7532.80 | 7170.00 | 7860.00 | 464.26 | 2564.35 | 1.35e-9 | GTC | OSIRIS | GTC, OSIRIS, F754 filter (full trans) |
| GTC/OSIRIS.F754_filter | 7539.81 | 7543.86 | 7535.16 | 7170.00 | 7860.00 | 468.14 | 2563.36 | 1.35e-9 | GTC | Osiris | GTC, Osiris, F754 (filter only) |
| GTC/OSIRIS.F770 | 7700.31 | 7704.57 | 7695.50 | 7321.99 | 8200.00 | 470.39 | 2499.90 | 1.26e-9 | GTC | OSIRIS | GTC, OSIRIS, F770 filter (full trans) |
| GTC/OSIRIS.F770_filter | 7703.04 | 7707.30 | 7698.24 | 7327.01 | 8200.00 | 462.20 | 2498.82 | 1.26e-9 | GTC | Osiris | GTC, Osiris, F770 (filter only) |
| GTC/OSIRIS.sdss_i | 7676.30 | 7714.60 | 7634.00 | 6754.19 | 8778.25 | 1442.16 | 2523.89 | 1.28e-9 | GTC | | GTC, OSIRIS, SDSS i filter (full trans) |
| GTC/OSIRIS.sdss_i_filter | 7705.62 | 7744.84 | 7662.13 | 6756.25 | 8806.64 | 1417.01 | 2513.13 | 1.27e-9 | GTC | Osiris | GTC, Osiris, SDSS i (filter only) |
| GTC/OSIRIS.F785 | 7862.97 | 7867.32 | 7858.23 | 7432.08 | 8350.00 | 479.60 | 2440.06 | 1.18e-9 | GTC | OSIRIS | GTC, OSIRIS, F785 filter (full trans) |
| GTC/OSIRIS.F785_filter | 7865.99 | 7870.35 | 7861.26 | 7454.41 | 8350.00 | 473.64 | 2438.98 | 1.18e-9 | GTC | Osiris | GTC, Osiris, F785 (filter only) |
| GTC/OSIRIS.F802 | 7998.00 | 8002.59 | 7992.95 | 7567.03 | 8500.00 | 502.08 | 2391.67 | 1.12e-9 | GTC | OSIRIS | GTC, OSIRIS, F802 filter (full trans) |
| GTC/OSIRIS.F802_filter | 8002.82 | 8007.45 | 7997.71 | 7586.59 | 8500.00 | 496.89 | 2389.98 | 1.12e-9 | GTC | Osiris | GTC, Osiris, F802 (filter only) |
| GTC/OSIRIS.F819 | 8177.14 | 8182.45 | 8171.15 | 7660.00 | 8700.00 | 559.27 | 2332.50 | 1.05e-9 | GTC | OSIRIS | GTC, OSIRIS, F819 filter (full trans) |
| GTC/OSIRIS.F819_filter | 8186.29 | 8191.64 | 8180.27 | 7752.28 | 8700.00 | 550.96 | 2329.42 | 1.04e-9 | GTC | Osiris | GTC, Osiris, F819 (filter only) |
| GTC/OSIRIS.F838 | 8370.73 | 8375.96 | 8365.49 | 7960.00 | 8760.38 | 561.79 | 2273.34 | 9.73e-10 | GTC | OSIRIS | GTC, OSIRIS, F838 filter (full trans) |
| GTC/OSIRIS.F838_filter | 8381.58 | 8386.82 | 8376.37 | 7961.89 | 8765.21 | 554.18 | 2270.45 | 9.69e-10 | GTC | Osiris | GTC, Osiris, F838 (filter only) |
| GTC/OSIRIS.F858 | 8575.24 | 8580.49 | 8572.55 | 8162.44 | 8970.04 | 567.86 | 2242.54 | 9.14e-10 | GTC | OSIRIS | GTC, OSIRIS, F858 filter (full trans) |
| GTC/OSIRIS.F858_filter | 8589.56 | 8594.85 | 8586.94 | 8168.26 | 8974.49 | 563.75 | 2241.87 | 9.11e-10 | GTC | Osiris | GTC, Osiris, F858 (filter only) |
| GTC/OSIRIS.F878 | 8765.23 | 8770.97 | 8764.69 | 8320.18 | 9178.42 | 574.71 | 2244.64 | 8.76e-10 | GTC | OSIRIS | GTC, OSIRIS, F878 filter (full trans) |
| GTC/OSIRIS.F878_filter | 8781.98 | 8787.67 | 8781.47 | 8324.92 | 9185.00 | 598.17 | 2246.53 | 8.73e-10 | GTC | Osiris | GTC, Osiris, F878 (filter only) |
| GTC/OSIRIS.F893 | 8917.48 | 8921.77 | 8918.24 | 8510.00 | 9284.76 | 515.28 | 2273.48 | 8.57e-10 | GTC | OSIRIS | GTC, OSIRIS, F893 filter (full trans) |
| GTC/OSIRIS.F893_filter | 8929.21 | 8933.46 | 8929.94 | 8513.12 | 9289.22 | 508.31 | 2275.91 | 8.56e-10 | GTC | Osiris | GTC, Osiris, F893 (filter only) |
| GTC/OSIRIS.F902 | 9031.82 | 9034.42 | 9030.34 | 8670.00 | 9335.39 | 394.65 | 2272.32 | 8.35e-10 | GTC | OSIRIS | GTC, OSIRIS, F902 filter (full trans) |
| GTC/OSIRIS.F902_filter | 9038.85 | 9041.45 | 9037.18 | 8674.35 | 9339.33 | 395.97 | 2271.26 | 8.33e-10 | GTC | Osiris | GTC, Osiris, F902 (filter only) |
| GTC/OSIRIS.F911 | 9116.34 | 9119.28 | 9114.51 | 8740.00 | 9436.94 | 415.35 | 2265.13 | 8.17e-10 | GTC | OSIRIS | GTC, OSIRIS, F911 filter (full trans) |
| GTC/OSIRIS.sdss_z | 9087.10 | 9128.72 | 9065.16 | 8110.00 | 10461.35 | 1430.61 | 2231.48 | 8.1e-10 | GTC | | GTC, OSIRIS, SDSS z filter (full trans) |
| GTC/OSIRIS.F911_filter | 9126.05 | 9129.01 | 9124.23 | 8742.47 | 9442.93 | 423.47 | 2264.02 | 8.15e-10 | GTC | Osiris | GTC, Osiris, F911 (filter only) |
| GTC/OSIRIS.F919 | 9179.86 | 9182.15 | 9179.22 | 8850.00 | 9468.88 | 365.42 | 2268.06 | 8.07e-10 | GTC | OSIRIS | GTC, OSIRIS, F919 filter (full trans) |
| GTC/OSIRIS.F919_filter | 9188.61 | 9190.91 | 9188.04 | 8850.40 | 9474.42 | 374.51 | 2267.92 | 8.05e-10 | GTC | Osiris | GTC, Osiris, F919 (filter only) |
| GTC/OSIRIS.F924 | 9232.76 | 9234.72 | 9232.05 | 8900.00 | 9507.18 | 340.71 | 2276.54 | 8.01e-10 | GTC | OSIRIS | GTC, OSIRIS, F924 filter (full trans) |
| GTC/OSIRIS.F924_filter | 9240.70 | 9242.64 | 9240.16 | 8905.20 | 9510.00 | 332.03 | 2276.34 | 7.99e-10 | GTC | Osiris | GTC, Osiris, F924 (filter only) |
| GTC/OSIRIS.F927 | 9276.94 | 9278.92 | 9276.80 | 8950.00 | 9554.28 | 341.91 | 2273.42 | 7.92e-10 | GTC | OSIRIS | GTC, OSIRIS, F927 filter (full trans) |
| GTC/OSIRIS.F927_filter | 9285.08 | 9287.03 | 9285.09 | 8952.96 | 9559.01 | 335.11 | 2274.16 | 7.91e-10 | GTC | Osiris | GTC, Osiris, F927 (filter only) |
| GTC/OSIRIS.F932 | 9311.64 | 9313.51 | 9312.14 | 8980.00 | 9570.54 | 337.00 | 2265.69 | 7.83e-10 | GTC | OSIRIS | GTC, OSIRIS, F932 filter (full trans) |
| GTC/OSIRIS.F932_filter | 9319.33 | 9321.18 | 9319.88 | 8989.08 | 9575.32 | 325.98 | 2267.34 | 7.83e-10 | GTC | Osiris | GTC, Osiris, F932 (filter only) |
| GTC/OSIRIS.F936 | 9360.21 | 9362.05 | 9359.31 | 9030.00 | 9624.61 | 329.10 | 2250.07 | 7.7e-10 | GTC | OSIRIS | GTC, OSIRIS, F936 filter (full trans) |
| GTC/OSIRIS.F936_filter | 9367.96 | 9369.78 | 9366.82 | 9036.64 | 9630.00 | 324.95 | 2249.19 | 7.68e-10 | GTC | Osiris | GTC, Osiris, F936 (filter only) |
| GTC/OSIRIS.F940 | 9410.51 | 9412.43 | 9406.81 | 9090.00 | 9683.84 | 341.01 | 2223.07 | 7.53e-10 | GTC | OSIRIS | GTC, OSIRIS, F940 filter (full trans) |
| GTC/OSIRIS.F940_filter | 9419.63 | 9421.56 | 9415.60 | 9094.67 | 9690.00 | 347.52 | 2217.33 | 7.49e-10 | GTC | Osiris | GTC, Osiris, F940 (filter only) |
| GTC/OSIRIS.sdss_z_filter | 9665.12 | 9753.60 | 9589.62 | 8110.34 | 11000.00 | 2341.52 | 2137.63 | 6.86e-10 | GTC | Osiris | GTC, Osiris, SDSS z (filter only) |
 ≡ filter transmission<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum.<p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl.effective</ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p>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.<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.bandwidth.extent.value</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission (energy counter).<br> Vg(λ) ≡ Vega spectrum.<p><i>(T(λ) must be multiplied by λ for photon counting devices)</i><p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>ref</sub><sup>2</sup> * F<sub>0,λ</sub>(erg/cm<sup>2</sup>/s/A)<p>In the case that filter owner specifies its own values, they will be the ones provided by the service when queried through the VO.<p><u>Property info:</u><ul><li><b>Unit</b>:Jy<li><b>UCD</b>:phot.flux.density<li><b>Utype</b>: <i>photdm:PhotCal.zeroPoint.flux.value</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission (energy counter).<br> Vg(λ) ≡ Vega spectrum.<p><i>(T(λ) must be multiplied by λ for photon counting devices)</i><p><u>Property info:</u><ul><li><b>Unit</b>:erg/cm2/s/A<li><b>Utype</b>: <i>PhotCal.ZeroPoint</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p>f(λ) ≡ flux of the spectrum<p><u>Property info:</u><ul><li><b>UCD</b>:meta.code<li><b>Utype</b>: <i>photdm:PhotometricSystem.detectorType</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lmean&val=6431.7064215661&id=GTC/OSIRIS.F643><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum.<p><img src=showgraph.php?what=leff&val=6423.5678860508&id=GTC/OSIRIS.F643><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl.effective</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lpiv&val=6429.6583052937&id=GTC/OSIRIS.F643><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p><img src=showgraph.php?what=lphot&val=6424.9035340048&id=GTC/OSIRIS.F643><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<p>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.<p><img src=showgraph.php?what=weff&val=287.6206562566,6433.3038226837,1&id=GTC/OSIRIS.F643><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.bandwidth.extent.value</i></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
![(?)](javascript:Tip('<b>A<sub>f</sub>/A<sub>V</sub></b><br><table cellpadding=20><td class=helptd>Ratio between extintion at λ<sub>ref</sub> and visual extintion. <p>Calculated by the service using the extinction law by <a href="http://adsabs.harvard.edu/abs/1999PASP..111...63F" target="_blank">Fitzpatrick (1999)</a> improved by <a href="http://adsabs.harvard.edu/abs/2005ApJ...619..931I" target="_blank">Indebetouw et al (2005)</a> in the infrared. <p><img src="images/extlaw.png"><p>You can download the corresponding <a href=\"getextlaw.php\" target=\"_blank\">data file</a> for the opacity k<sub>λ</sub>. The extinction at each wavelength is calculated as: A<sub>λ</sub> = A<sub>V</sub> * k<sub>λ</sub>/k<sub>V</sub>, where k<sub>λ</sub> is the opacity for a given λ and k<sub>V</sub>=211.4<p><p><u>Property info:</u><ul></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission.<br> Sun(λ) ≡ Sun spectrum.<p><img src="images/sun.png"><p><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p><u>More info:</u><p>Sun spectrum from calspec database: sun_reference_stis_002 composed with sun_mod_001 for larger wavelengths.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/sun.dat" target="_blank">Sun composed spectrum</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>Unit</b>:erg/cm2/s/A<li><b>UCD</b>:phot.flux.density</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission.<br> Vg(λ) ≡ Vega spectrum.<p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>ref</sub><sup>2</sup> * F<sub>0,λ</sub>(erg/cm<sup>2</sup>/s/A)<p>Filter transmission is transformed to \"<i>energy counter</i>\" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<p>In the case that filter owner specifies its own values, they will be the ones provided by the service when queried through the VO.<p><u>VO PhotDM Utypes</u>: <br><i>PhotCal.MagnitudeSystem.type</i> -> VEGAmag <br><i>PhotCal.ZeroPoint.Flux.value</i> -> F<sub>0</sub><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>UCD</b>:phot.flux.density<li><b>Utype</b>: <i>photdm:PhotCal.ZeroPoint.Flux.value</i></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
