CTIO :Cerro Tololo Inter-American Observatory CTIO/Y4KCam :Y4KCam is a 4Kx4K optical CCD optimized for wide-field broad-band imaging. |
| CTIO/Y4KCam.sdss_u | 3537.06 | 3550.86 | 3575.62 | 3076.80 | 3986.53 | 518.73 | 1499.79 | 3.52e-9 | CTIO | Y4KCam | Y4KCam SDSS u' filter | | CTIO/Y4KCam.B | 4230.76 | 4270.82 | 4265.54 | 3500.98 | 5230.86 | 1001.01 | 3817.92 | 6.29e-9 | CTIO | Y4KCam | Y4KCam B filter | | CTIO/Y4KCam.sdss_g | 4731.96 | 4791.51 | 4692.47 | 3862.48 | 5629.52 | 1405.64 | 3931.50 | 5.35e-9 | CTIO | Y4KCam | Y4KCam SDSS g' filter | | CTIO/Y4KCam.Y | 5335.70 | 5374.88 | 5304.64 | 4611.98 | 6594.50 | 1083.67 | 3629.30 | 3.87e-9 | CTIO | Y4KCam | Y4KCam Y filter | | CTIO/Y4KCam.sdss_r | 6220.04 | 6258.53 | 6177.43 | 5434.52 | 6996.19 | 1292.12 | 3129.63 | 2.46e-9 | CTIO | Y4KCam | Y4KCam SDSS r' filter | | CTIO/Y4KCam.Rc | 6564.99 | 6686.62 | 6452.87 | 5467.55 | 9731.50 | 1771.63 | 2933.91 | 2.11e-9 | CTIO | Y4KCam | Y4KCam Rc filter | | CTIO/Y4KCam.sdss_i | 7647.69 | 7685.17 | 7607.00 | 6764.25 | 8537.67 | 1477.56 | 2531.66 | 1.31e-9 | CTIO | Y4KCam | Y4KCam SDSS i' filter | | CTIO/Y4KCam.Ic | 8027.27 | 8077.29 | 7977.87 | 7051.98 | 9252.12 | 1718.25 | 2407.51 | 1.13e-9 | CTIO | Y4KCam | Y4KCam Ic filter | | CTIO/Y4KCam.Ic | Filter Description | Filter ID (?) : | CTIO/Y4KCam.Ic |
| Description (?) : | Y4KCam Ic filter |
| Phot.System (?) : | Cousins |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | I |
| Obs. Facility (?) : | CTIO |
| Instrument (?) : | Y4KCam |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
8027.27 | ------- | (Angstrom) |
| λmean (?) : |
8077.29 | ------- | (Angstrom) |
| λcen (?) : |
8078.30 | ------- | (Angstrom) |
| λeff (?) : |
7977.87 | ------- | (Angstrom) |
| λpeak (?) : |
7650.00 | ------- | (Angstrom) |
| λpivot (?) : |
8027.27 | ------- | (Angstrom) |
| λphot (?) : |
8011.26 | ------- | (Angstrom) |
| λmin (?) : |
7051.98 | ------- | (Angstrom) |
| λmax (?) : |
9252.12 | ------- | (Angstrom) |
| Weff (?) : |
1718.25 | ------- | (Angstrom) |
| FWHM (?) : |
1763.87 | ------- | (Angstrom) |
| Af/AV (?) : |
0.611 | ------- | () |
| Fsun (?) : |
111.75 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Y4KCam Filters Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.13401e-9 | (erg/cm2/s/A) |
| |
------- |
2407.51 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/Y4KCam.Ic/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.7103e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/Y4KCam.Ic/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
7708.66 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/Y4KCam.Ic/ST |
| |
|
Filter added: 2017-08-05 16:06:30
Last update: 2020-12-10 16:28:52 | | CTIO/Y4KCam.sdss_z | 9052.50 | 9080.05 | 9044.05 | 8247.80 | 9914.40 | 1359.39 | 2254.59 | 8.26e-10 | CTIO | Y4KCam | Y4KCam SDSS zi' filter |
|
© SVO, 8999 filters available, Last update: 2021-01-15 | 
 ≡ filter transmission<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></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://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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.SpectralAxis.Coverage.Bounds.Extent</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>Utype</b>: <i>photdm:PhotometricSystem.detectorType</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lmean&val=8077.2879364058&id=CTIO/Y4KCam.Ic><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></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=7977.8668226144&id=CTIO/Y4KCam.Ic><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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=8027.270899162&id=CTIO/Y4KCam.Ic><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=8011.2587195547&id=CTIO/Y4KCam.Ic><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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=1718.2450528116,8078.2990728925,0.883&id=CTIO/Y4KCam.Ic><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Bounds.Extent</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/extinctionlaw.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/sunspec.png><p><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://ssb.stsci.edu/cdbs_open/cdbs/current_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>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://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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}
