Astrosat :ASTROSAT is India first dedicated multi wavelength space observatory. Astrosat/UVIT :Filters for the Astrosat UV Imaging Telescope |
| Astrosat/UVIT.F148W | 1481.00 | 1481.00 | 1481.00 | 1250.22 | 1799.10 | 429.96 | 3631.00 | 4.84e-8 | Astrosat | UVIT | UVIT F148W filter | | Astrosat/UVIT.F148W_old | 1481.00 | 1481.00 | 1481.00 | 1250.22 | 1750.00 | 414.22 | 3631.00 | 4.89e-8 | Astrosat | UVIT | UVIT F148W filter (old) | | Astrosat/UVIT.F148Wa | 1485.00 | 1485.00 | 1485.00 | 1250.24 | 1750.00 | 402.18 | 3631.00 | 4.86e-8 | Astrosat | UVIT | UVIT F148Wa filter | | Astrosat/UVIT.F154W | 1541.00 | 1541.00 | 1541.00 | 1340.54 | 1799.08 | 371.95 | 3631.00 | 4.52e-8 | Astrosat | UVIT | UVIT F154W filter | | Astrosat/UVIT.F154W_old | 1541.00 | 1541.00 | 1541.00 | 1340.54 | 1799.08 | 372.00 | 3631.00 | 4.52e-8 | Astrosat | UVIT | UVIT F154W filter (old) | | Astrosat/UVIT.F169M | 1608.00 | 1608.00 | 1608.00 | 1428.36 | 1799.15 | 277.29 | 3631.00 | 4.25e-8 | Astrosat | UVIT | UVIT F169M filter | | Astrosat/UVIT.F169M_old | 1608.00 | 1608.00 | 1608.00 | 1428.40 | 1799.15 | 277.17 | 3631.00 | 4.25e-8 | Astrosat | UVIT | UVIT F169M filter (old) | | Astrosat/UVIT.F172M | 1717.00 | 1717.00 | 1717.00 | 1620.00 | 1828.44 | 118.23 | 3631.00 | 3.69e-8 | Astrosat | UVIT | UVIT F172M filter | | Astrosat/UVIT.F172M_old | 1717.00 | 1717.00 | 1717.00 | 1620.00 | 1828.44 | 118.43 | 3631.00 | 3.69e-8 | Astrosat | UVIT | UVIT F172M filter (old) | | Astrosat/UVIT.N219M | 2196.00 | 2196.00 | 2196.00 | 1947.19 | 2410.00 | 249.88 | 3631.00 | 2.26e-8 | Astrosat | UVIT | UVIT N219M filter | | Astrosat/UVIT.N219M_old | 2196.00 | 2196.00 | 2196.00 | 1946.96 | 2409.50 | 249.63 | 3631.00 | 2.26e-8 | Astrosat | UVIT | UVIT N219M filter (old) | | Astrosat/UVIT.N242W | 2418.00 | 2418.00 | 2418.00 | 1700.00 | 3050.00 | 767.13 | 3631.00 | 1.87e-8 | Astrosat | UVIT | UVIT N242W filter | | Astrosat/UVIT.N242W_old | 2418.00 | 2418.00 | 2418.00 | 1700.00 | 3050.00 | 767.17 | 3631.00 | 1.87e-8 | Astrosat | UVIT | UVIT N242W filter (old) | | Astrosat/UVIT.N245M | 2447.00 | 2447.00 | 2447.00 | 2193.22 | 2633.11 | 255.77 | 3631.00 | 1.82e-8 | Astrosat | UVIT | UVIT N245M filter | | Astrosat/UVIT.N245M_old | 2447.00 | 2447.00 | 2447.00 | 2192.73 | 2632.97 | 255.73 | 3631.00 | 1.82e-8 | Astrosat | UVIT | UVIT N245M filter (old) | | Astrosat/UVIT.N263M | 2632.00 | 2632.00 | 2632.00 | 2462.85 | 2842.72 | 260.20 | 3631.00 | 1.57e-8 | Astrosat | UVIT | UVIT N263M filter | | Astrosat/UVIT.N263M | Filter Description | Filter ID (?) : | Astrosat/UVIT.N263M |
| Description (?) : | UVIT N263M filter |
| Phot.System (?) : | UVIT |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Astrosat |
| Instrument (?) : | UVIT |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
2635.93 | 2632 | (Angstrom) |
| λmean (?) : |
2639.83 | 2632 | (Angstrom) |
| λcen (?) : |
2638.70 | ------- | (Angstrom) |
| λeff (?) : |
2637.47 | 2632 | (Angstrom) |
| λpeak (?) : |
2602.00 | ------- | (Angstrom) |
| λpivot (?) : |
2635.93 | ------- | (Angstrom) |
| λphot (?) : |
2639.92 | ------- | (Angstrom) |
| λmin (?) : |
2462.85 | ------- | (Angstrom) |
| λmax (?) : |
2842.72 | ------- | (Angstrom) |
| Weff (?) : |
260.20 | ------- | (Angstrom) |
| FWHM (?) : |
271.84 | ------- | (Angstrom) |
| Af/AV (?) : |
2.11 | ------- | () |
| Fsun (?) : |
15.83 | ------- | (erg/cm2/s/A) |
| Effective area
Data file: ascii, VOTable Reference for filter response:
Tandon et al. 2020 Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.80426e-9 | (erg/cm2/s/A) |
| |
------- |
881.69 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Astrosat/UVIT.N263M/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.56668e-8 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Astrosat/UVIT.N263M/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
841.54 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Astrosat/UVIT.N263M/ST |
| |
Reference for calibration:
Tandon et al. 2020 |
Filter added: 2021-10-06 13:45:00
Last update: 2021-10-18 11:16:59 | | Astrosat/UVIT.N263M_old | 2632.00 | 2632.00 | 2632.00 | 2462.36 | 2842.22 | 259.99 | 3631.00 | 1.57e-8 | Astrosat | UVIT | UVIT N263M filter (old) | | Astrosat/UVIT.N279N | 2792.00 | 2792.00 | 2792.00 | 2722.12 | 2876.61 | 81.42 | 3631.00 | 1.4e-8 | Astrosat | UVIT | UVIT N279N filter | | Astrosat/UVIT.N279N_old | 2792.00 | 2792.00 | 2792.00 | 2721.92 | 2876.50 | 81.43 | 3631.00 | 1.4e-8 | Astrosat | UVIT | UVIT N279N filter (old) | | Astrosat/UVIT.VIS1 | 3466.00 | 3466.00 | 3466.00 | 3186.41 | 3738.62 | 371.29 | 3631.00 | 9.02e-9 | Astrosat | UVIT | UVIT VIS1 filter | | Astrosat/UVIT.VIS2 | 3909.00 | 3909.00 | 3909.00 | 3619.20 | 4166.45 | 360.35 | 3631.00 | 7.14e-9 | Astrosat | UVIT | UVIT VIS2 filter | | Astrosat/UVIT.BK7 | 4200.00 | 4200.00 | 4200.00 | 3064.99 | 5495.00 | 1817.15 | 3631.00 | 5.98e-9 | Astrosat | UVIT | UVIT BK7 filter | | Astrosat/UVIT.ND1 | 4354.00 | 4354.00 | 4354.00 | 3577.69 | 5446.79 | 949.36 | 3631.00 | 5.4e-9 | Astrosat | UVIT | UVIT ND1 filter | | Astrosat/UVIT.VIS3 | 4614.00 | 4614.00 | 4614.00 | 3869.42 | 5325.00 | 1156.87 | 3631.00 | 5.2e-9 | Astrosat | UVIT | UVIT VIS3 filter |
|
| 
 ≡ 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://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.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=2639.8346421828&id=Astrosat/UVIT.N263M><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 (photon counter)<br> Vg(λ) ≡ Vega spectrum<p><img src=showgraph.php?what=leff&val=2637.4686244436&id=Astrosat/UVIT.N263M><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=2635.9269584013&id=Astrosat/UVIT.N263M><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 (photon counter)<br> Vg(λ) ≡ Vega spectrum<p><img src=showgraph.php?what=lphot&val=2639.9197916396&id=Astrosat/UVIT.N263M><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=260.20275854301,2638.6956585065,33.842&id=Astrosat/UVIT.N263M><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 (photon counter).<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://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 (photon counter).<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://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}
