| HST/WFPC2-WF.F160BW | 1506.81 | 1549.45 | 1594.59 | 1143.71 | 2124.26 | 547.72 | 423.32 | 5.59e-9 | HST | WFPC2 | F160BW filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F185W | 1968.45 | 1992.23 | 1973.36 | 1648.00 | 2711.97 | 380.93 | 742.11 | 5.74e-9 | HST | WFPC2 | F185W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F185W | Filter Description | Filter ID (?) : | HST/WFPC2-WF.F185W |
| Description (?) : | F185W filter for HST WFPC2 wide field camera (detector 4) |
| Phot.System (?) : | WFPC2-WF |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | HST |
| Instrument (?) : | WFPC2 |
| Comments (?) : | Response calculated using the stsynphot python package by STScI. In particular, function stsynphot.band("wfpc2,4,f185w"). Please, take a look to stsynphot documentation and HST instrument documentation |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
1968.45 | ------- | (Angstrom) |
| λmean (?) : |
1992.23 | ------- | (Angstrom) |
| λcen (?) : |
1948.24 | ------- | (Angstrom) |
| λeff (?) : |
1973.36 | ------- | (Angstrom) |
| λpeak (?) : |
1970.00 | ------- | (Angstrom) |
| λpivot (?) : |
1968.45 | ------- | (Angstrom) |
| λphot (?) : |
1991.52 | ------- | (Angstrom) |
| λmin (?) : |
1648.00 | ------- | (Angstrom) |
| λmax (?) : |
2711.97 | ------- | (Angstrom) |
| Weff (?) : |
380.93 | ------- | (Angstrom) |
| FWHM (?) : |
354.29 | ------- | (Angstrom) |
| Af/AV (?) : |
2.77 | ------- | () |
| Fsun (?) : |
2.05 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
stsynphot documentation Transmission components: Filter + CCD + Instrumentid:HST/WFPC2-WF.F185W
You can download here the GaiaXPy base XML file for the full HST/WFPC2-WF 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 (?) : |
------- |
5.74167e-9 | (erg/cm2/s/A) |
| |
------- |
742.11 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
HST/WFPC2-WF.F185W/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.80929e-8 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
HST/WFPC2-WF.F185W/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
469.31 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
HST/WFPC2-WF.F185W/ST |
| |
|
Filter added: 2019-07-16 12:16:58
Last update: 2022-03-01 15:25:38 |
| HST/WFPC2-WF.F170W | 1828.94 | 2158.75 | 1904.87 | 1209.51 | 8878.99 | 617.80 | 656.84 | 5.89e-9 | HST | WFPC2 | F170W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F218W | 2203.41 | 2224.64 | 2201.27 | 1770.15 | 2882.85 | 446.42 | 780.20 | 4.82e-9 | HST | WFPC2 | F218W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F255W | 2599.41 | 2616.70 | 2610.17 | 2137.46 | 3205.86 | 461.21 | 868.87 | 3.86e-9 | HST | WFPC2 | F255W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F157W | 1729.82 | 2880.21 | 2053.58 | 1141.30 | 9794.05 | 572.70 | 486.87 | 4.88e-9 | HST | WFPC2 | F157W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F300W | 2984.47 | 3037.78 | 3028.67 | 2339.21 | 3983.30 | 895.14 | 1074.23 | 3.62e-9 | HST | WFPC2 | F300W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F336W | 3344.09 | 3355.45 | 3349.48 | 2960.61 | 3802.00 | 452.60 | 1240.63 | 3.33e-9 | HST | WFPC2 | F336W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F343N | 3426.95 | 3426.99 | 3426.95 | 3399.08 | 3456.36 | 27.87 | 1281.23 | 3.27e-9 | HST | WFPC2 | F343N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F122M | 1705.25 | 3522.31 | 2957.12 | 1141.65 | 9648.48 | 285.42 | 247.30 | 2.55e-9 | HST | WFPC2 | F122M filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F375N | 3732.26 | 3732.30 | 3732.92 | 3700.94 | 3760.17 | 29.98 | 1652.60 | 3.56e-9 | HST | WFPC2 | F375N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.FQUVN33 | 3764.46 | 3764.84 | 3770.12 | 3681.77 | 3837.97 | 91.88 | 2052.65 | 4.34e-9 | HST | WFPC2 | FQUVN33 quad filter for HST WFPC2 wide field camera |
| HST/WFPC2-WF.FQUVN_B | 3829.50 | 3829.73 | 3832.99 | 3769.25 | 3892.29 | 73.47 | 2958.51 | 6.05e-9 | HST | WFPC2 | FQUVN quad filter (B position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F390N | 3888.33 | 3888.47 | 3888.54 | 3838.14 | 3937.74 | 60.05 | 3427.54 | 6.8e-9 | HST | WFPC2 | F390N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.FQUVN_C | 3912.91 | 3913.16 | 3915.91 | 3851.52 | 3979.94 | 76.27 | 3705.88 | 7.26e-9 | HST | WFPC2 | FQUVN quad filter (C position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.FQUVN_D | 3992.16 | 3992.44 | 3995.97 | 3927.16 | 4060.73 | 80.13 | 3927.98 | 7.39e-9 | HST | WFPC2 | FQUVN quad filter (D position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F380W | 3982.29 | 4013.17 | 4066.00 | 3245.70 | 4679.92 | 823.05 | 3248.11 | 6.14e-9 | HST | WFPC2 | F380W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F410M | 4087.79 | 4089.23 | 4087.43 | 3895.04 | 4277.13 | 184.93 | 4189.41 | 7.52e-9 | HST | WFPC2 | F410M filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F439W | 4311.49 | 4325.63 | 4309.61 | 3895.56 | 4768.19 | 633.97 | 4202.11 | 6.78e-9 | HST | WFPC2 | F439W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F437N | 4369.20 | 4369.24 | 4370.16 | 4337.81 | 4399.85 | 31.83 | 3977.27 | 6.25e-9 | HST | WFPC2 | F437N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F450W | 4556.22 | 4607.85 | 4545.40 | 3622.63 | 5353.38 | 789.39 | 3964.72 | 5.73e-9 | HST | WFPC2 | F450W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F467M | 4669.94 | 4671.55 | 4668.23 | 4477.16 | 4877.22 | 206.15 | 4223.32 | 5.81e-9 | HST | WFPC2 | F467M filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F469N | 4694.37 | 4694.41 | 4694.33 | 4664.46 | 4721.81 | 33.07 | 4229.75 | 5.75e-9 | HST | WFPC2 | F469N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F487N | 4865.19 | 4865.22 | 4865.89 | 4833.86 | 4893.57 | 33.92 | 2659.77 | 3.37e-9 | HST | WFPC2 | F487N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F502N | 5012.41 | 5012.45 | 5012.37 | 4982.26 | 5042.17 | 35.79 | 3949.67 | 4.71e-9 | HST | WFPC2 | F502N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.FQCH4N_D | 5435.38 | 5435.43 | 5435.33 | 5396.06 | 5474.01 | 43.25 | 3642.39 | 3.7e-9 | HST | WFPC2 | FQCH4N quad filter (D position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F547M | 5483.76 | 5495.23 | 5472.54 | 5003.77 | 6001.26 | 627.54 | 3618.49 | 3.61e-9 | HST | WFPC2 | F547M filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F555W | 5442.21 | 5519.13 | 5370.54 | 4391.89 | 7128.21 | 1427.58 | 3643.70 | 3.69e-9 | HST | WFPC2 | F555W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F569W | 5644.08 | 5691.47 | 5597.62 | 4835.16 | 7152.23 | 1161.77 | 3526.15 | 3.32e-9 | HST | WFPC2 | F569W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F588N | 5893.51 | 5893.62 | 5893.41 | 5837.09 | 5949.58 | 65.31 | 3355.12 | 2.9e-9 | HST | WFPC2 | F588N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F606W | 6001.01 | 6101.20 | 5898.88 | 4682.21 | 7334.60 | 1774.96 | 3306.13 | 2.75e-9 | HST | WFPC2 | F606W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.FQCH4N33 | 6199.42 | 6199.47 | 6199.37 | 6159.21 | 6237.55 | 44.46 | 3187.47 | 2.49e-9 | HST | WFPC2 | FQCH4N33 quad filter for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F622W | 6187.83 | 6224.63 | 6145.56 | 5369.55 | 7033.63 | 1211.43 | 3178.67 | 2.49e-9 | HST | WFPC2 | F622W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F631N | 6306.44 | 6306.48 | 6306.31 | 6272.15 | 6339.91 | 42.15 | 3127.94 | 2.36e-9 | HST | WFPC2 | F631N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F656N | 6563.81 | 6563.83 | 6563.76 | 6538.37 | 6587.39 | 28.34 | 2224.41 | 1.55e-9 | HST | WFPC2 | F656N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F658N | 6590.82 | 6590.85 | 6591.70 | 6558.42 | 6622.57 | 39.22 | 2678.94 | 1.85e-9 | HST | WFPC2 | F658N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F130LP | 5807.99 | 6618.28 | 5736.30 | 1783.02 | 10492.15 | 3762.06 | 2752.32 | 2.45e-9 | HST | WFPC2 | F130LP filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F165LP | 5849.16 | 6622.95 | 5747.42 | 1790.57 | 10491.44 | 3748.74 | 2788.00 | 2.44e-9 | HST | WFPC2 | F165LP filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F673N | 6732.27 | 6732.36 | 6732.17 | 6677.75 | 6783.63 | 63.30 | 2912.39 | 1.93e-9 | HST | WFPC2 | F673N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F675W | 6718.09 | 6748.64 | 6687.54 | 5954.65 | 7635.35 | 1166.42 | 2895.92 | 1.92e-9 | HST | WFPC2 | F675W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F702W | 6918.77 | 6996.97 | 6839.84 | 5868.22 | 8460.37 | 1772.92 | 2830.63 | 1.77e-9 | HST | WFPC2 | F702W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.POLQ | 6366.57 | 7078.40 | 6105.66 | 2251.71 | 10658.77 | 4133.72 | 2814.60 | 2.08e-9 | HST | WFPC2 | POLQ polarizer quad filter for HST WFPC2 wide field camera |
| HST/WFPC2-WF.POLQ_90 | 6391.08 | 7113.60 | 6118.59 | 2257.39 | 10746.56 | 4173.12 | 2812.86 | 2.06e-9 | HST | WFPC2 | POLQ_90 polarizer quad filter for HST WFPC2 wide field camera (90 degree rotation) |
| HST/WFPC2-WF.POLQ_45 | 6398.67 | 7128.81 | 6119.47 | 2260.35 | 10790.64 | 4215.95 | 2813.56 | 2.06e-9 | HST | WFPC2 | POLQ_45 polarizer quad filter for HST WFPC2 wide field camera (45 degree rotation) |
| HST/WFPC2-WF.FQCH4N_B | 7278.52 | 7278.58 | 7278.44 | 7234.81 | 7319.72 | 49.26 | 2668.76 | 1.51e-9 | HST | WFPC2 | FQCH4N quad filter (B position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F791W | 7875.56 | 7929.38 | 7823.46 | 6859.42 | 9275.62 | 1478.26 | 2467.85 | 1.19e-9 | HST | WFPC2 | F791W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F953N | 6972.91 | 8061.36 | 6507.67 | 5161.45 | 9603.55 | 137.61 | 2522.95 | 1.56e-9 | HST | WFPC2 | F953N filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F814W | 8001.59 | 8086.63 | 7929.85 | 6944.01 | 9821.93 | 1641.88 | 2453.81 | 1.15e-9 | HST | WFPC2 | F814W filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F785LP | 8693.66 | 8755.50 | 8655.58 | 7475.71 | 10752.05 | 1665.16 | 2281.23 | 9.05e-10 | HST | WFPC2 | F785LP filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.FQCH4N_C | 8900.54 | 8903.23 | 8901.51 | 8742.44 | 8998.45 | 69.95 | 2398.05 | 9.07e-10 | HST | WFPC2 | FQCH4N quad filter (C position) for HST WFPC2 wide field camera |
| HST/WFPC2-WF.F850LP | 9119.94 | 9153.52 | 9101.95 | 8314.40 | 10790.01 | 1115.40 | 2233.99 | 8.05e-10 | HST | WFPC2 | F850LP filter for HST WFPC2 wide field camera (detector 4) |
| HST/WFPC2-WF.F1042M | 10224.90 | 10230.29 | 10223.11 | 9890.95 | 10915.36 | 371.15 | 2022.23 | 5.8e-10 | HST | WFPC2 | F1042M filter for HST WFPC2 wide field camera (detector 4) |
 ≡ 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=1992.2250251693&id=HST/WFPC2-WF.F185W><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=1973.3573847108&id=HST/WFPC2-WF.F185W><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=1968.4521770037&id=HST/WFPC2-WF.F185W><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=1991.51916337&id=HST/WFPC2-WF.F185W><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=380.9282119621,1948.2442297153,1&id=HST/WFPC2-WF.F185W><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}
