Paranal :Paranal ESO Observatory Paranal/VISTA :Visible and Infrared Survey Telescope for Astronomy(VISTA) is a specialized 4-m class wide field survey telescope for the Southern hemisphere. VISTA is located at ESO Cerro Paranal Observatory in Chile on its own peak about 1500 m N-NE from the Very Large Telescope (VLT)id:Paranal/VISTA.a → GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full Paranal/VISTA filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information. |
| Paranal/VISTA.Z_filter | 8775.78 | 8790.05 | 8771.15 | 8160.07 | 9402.51 | 958.66 | 2253.03 | 8.77e-10 | Paranal | VIRCAM | VISTA Z filter (filter only) | | Paranal/VISTA.Z | 8793.59 | 8807.70 | 8788.99 | 8048.77 | 9460.00 | 888.00 | 2252.94 | 8.73e-10 | Paranal | VIRCAM | VISTA Z filter (full) | | Paranal/VISTA.NB980_filter | 9781.17 | 9781.45 | 9780.89 | 9636.90 | 9909.93 | 113.41 | 2225.50 | 6.97e-10 | Paranal | VIRCAM | VISTA NB980 filter (filter only) | | Paranal/VISTA.NB980 | 9781.40 | 9781.67 | 9781.13 | 9545.35 | 9986.63 | 113.46 | 2225.60 | 6.97e-10 | Paranal | VIRCAM | VISTA NB980 filter (full) | | Paranal/VISTA.NB990_filter | 9908.56 | 9908.86 | 9907.69 | 9763.75 | 10048.91 | 113.40 | 2170.93 | 6.63e-10 | Paranal | VIRCAM | VISTA NB990 filter (filter only) | | Paranal/VISTA.NB990 | 9908.70 | 9908.99 | 9907.83 | 9690.00 | 10113.29 | 113.53 | 2170.84 | 6.63e-10 | Paranal | VIRCAM | VISTA NB990 filter (full) | | Paranal/VISTA.Y_filter | 10206.95 | 10219.74 | 10192.54 | 9437.46 | 10990.90 | 879.56 | 2064.48 | 5.94e-10 | Paranal | VIRCAM | VISTA Y filter (filter only) | | Paranal/VISTA.Y | 10210.71 | 10223.37 | 10196.44 | 9260.00 | 11290.00 | 869.45 | 2063.58 | 5.93e-10 | Paranal | VIRCAM | VISTA Y filter (full) | | Paranal/VISTA.NB118_filter | 11907.49 | 11907.83 | 11907.05 | 11688.86 | 12042.16 | 116.94 | 1660.42 | 3.51e-10 | Paranal | VIRCAM | VISTA NB118 filter (filter only) | | Paranal/VISTA.NB118 | 11907.71 | 11908.05 | 11907.29 | 11688.85 | 12041.78 | 117.21 | 1660.37 | 3.51e-10 | Paranal | VIRCAM | VISTA NB118 filter (full) | | Paranal/VISTA.J | 12525.25 | 12556.20 | 12481.04 | 11246.03 | 14037.00 | 1541.38 | 1533.46 | 2.93e-10 | Paranal | VIRCAM | VISTA J filter (full) | | Paranal/VISTA.J_filter | 12530.34 | 12562.09 | 12485.17 | 11434.20 | 13767.77 | 1554.12 | 1532.87 | 2.93e-10 | Paranal | VIRCAM | VISTA J filter (filter only) | | Paranal/VISTA.H | 16432.75 | 16499.01 | 16347.74 | 14326.17 | 18660.00 | 2673.17 | 1015.60 | 1.13e-10 | Paranal | VIRCAM | VISTA H filter (full) | | Paranal/VISTA.H_filter | 16441.10 | 16508.72 | 16354.32 | 14641.35 | 18426.19 | 2719.57 | 1014.97 | 1.13e-10 | Paranal | VIRCAM | VISTA H filter (filter only) | | Paranal/VISTA.Ks_filter | 21467.75 | 21527.63 | 21376.44 | 19360.37 | 23708.16 | 2914.37 | 662.42 | 4.31e-11 | Paranal | VIRCAM | VISTA Ks filter (filter only) | | Paranal/VISTA.Ks | 21521.67 | 21578.06 | 21435.42 | 19098.84 | 24126.96 | 2793.43 | 659.09 | 4.27e-11 | Paranal | VIRCAM | VISTA Ks filter (full) | | Paranal/VISTA.Ks | Filter Description | Filter ID (?) : | Paranal/VISTA.Ks |
| Description (?) : | VISTA Ks filter (full) |
| Phot.System (?) : | VISTA |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | Ks |
| Obs. Facility (?) : | Paranal |
| Instrument (?) : | VIRCAM |
| Comments (?) : | Includes mirrors (M1,M2), ccd QE and atmosphere model (1.0) |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
21521.67 | ------- | (Angstrom) |
| λmean (?) : |
21578.06 | ------- | (Angstrom) |
| λcen (?) : |
21479.58 | ------- | (Angstrom) |
| λeff (?) : |
21435.42 | ------- | (Angstrom) |
| λpeak (?) : |
22130.00 | ------- | (Angstrom) |
| λpivot (?) : |
21521.67 | ------- | (Angstrom) |
| λphot (?) : |
21473.45 | ------- | (Angstrom) |
| λmin (?) : |
19098.84 | ------- | (Angstrom) |
| λmax (?) : |
24126.96 | ------- | (Angstrom) |
| Weff (?) : |
2793.43 | ------- | (Angstrom) |
| FWHM (?) : |
3057.43 | ------- | (Angstrom) |
| Af/AV (?) : |
0.126 | ------- | () |
| Fsun (?) : |
8.93 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Paranal Instrumentation: VIRCAM Transmission components: Filter + Instrument + Other optical components + Atmosphereid:Paranal/VISTA.Ks
You can download here the GaiaXPy base XML file for the full Paranal/VISTA 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 (?) : |
------- |
4.26595e-11 | (erg/cm2/s/A) |
| |
------- |
659.09 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Paranal/VISTA.Ks/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.35015e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Paranal/VISTA.Ks/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
56099.31 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Paranal/VISTA.Ks/ST |
| |
|
Filter added: 2020-01-15 23:03:34
Last update: 2025-03-25 13:43:41 |
|
| 
 ≡ 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=21578.05660166&id=Paranal/VISTA.Ks><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=21435.422066736&id=Paranal/VISTA.Ks><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=21521.671921971&id=Paranal/VISTA.Ks><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=21473.45117506&id=Paranal/VISTA.Ks><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=2793.4334964532,21479.577229449,1&id=Paranal/VISTA.Ks><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}
