NIRT :Nasa Infrared Telescope Facility NIRT/NSFCAM :NSFCam is a 1-5 micron camera, built at the Institute for Astronomy, |
| NIRT/NSFCAM.J | 12456.65 | 12483.80 | 12417.20 | 11481.78 | 13494.42 | 1515.94 | 1562.29 | 3.04e-10 | NIRT | NSFCAM | NSFCAM J | | NIRT/NSFCAM.H | 16229.53 | 16298.32 | 16141.42 | 14509.80 | 18091.05 | 2844.67 | 1045.88 | 1.2e-10 | NIRT | NSFCAM | NSFCAM H | | NIRT/NSFCAM.FeII | 16375.67 | 16376.29 | 16373.53 | 16071.99 | 16675.89 | 202.65 | 1017.05 | 1.14e-10 | NIRT | NSFCAM | NSFCAM FeII | | NIRT/NSFCAM.Spencer17 | 17244.25 | 17252.18 | 17235.38 | 16474.43 | 18022.98 | 953.78 | 963.28 | 9.72e-11 | NIRT | NSFCAM | NSFCAM Spencer 1.7 | | NIRT/NSFCAM.Kp | 21049.98 | 21125.21 | 20941.68 | 19017.96 | 23235.03 | 3400.97 | 693.68 | 4.74e-11 | NIRT | NSFCAM | NSFCAM Kp | | NIRT/NSFCAM.H2-1 | 21160.75 | 21161.15 | 21160.10 | 20946.80 | 21376.70 | 227.37 | 694.12 | 4.65e-11 | NIRT | NSFCAM | NSFCAM H2-1 | | NIRT/NSFCAM.Ks | 21396.15 | 21454.17 | 21307.82 | 19501.89 | 23377.11 | 3051.52 | 676.70 | 4.47e-11 | NIRT | NSFCAM | NSFCAM Ks | | NIRT/NSFCAM.Ks | Filter Description | Filter ID (?) : | NIRT/NSFCAM.Ks |
| Description (?) : | NSFCAM Ks |
| Phot.System (?) : | NSFCAM |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | Ks |
| Obs. Facility (?) : | NIRT |
| Instrument (?) : | NSFCAM |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
21396.15 | ------- | (Angstrom) |
| λmean (?) : |
21454.17 | ------- | (Angstrom) |
| λcen (?) : |
21454.07 | ------- | (Angstrom) |
| λeff (?) : |
21307.82 | ------- | (Angstrom) |
| λpeak (?) : |
20597.00 | ------- | (Angstrom) |
| λpivot (?) : |
21396.15 | ------- | (Angstrom) |
| λphot (?) : |
21346.41 | ------- | (Angstrom) |
| λmin (?) : |
19501.89 | ------- | (Angstrom) |
| λmax (?) : |
23377.11 | ------- | (Angstrom) |
| Weff (?) : |
3051.52 | ------- | (Angstrom) |
| FWHM (?) : |
3100.05 | ------- | (Angstrom) |
| Af/AV (?) : |
0.127 | ------- | () |
| Fsun (?) : |
9.12 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
NIRT Filter Transmission Profiles Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.46827e-11 | (erg/cm2/s/A) |
| |
------- |
676.70 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NIRT/NSFCAM.Ks/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.39756e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NIRT/NSFCAM.Ks/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
54990.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NIRT/NSFCAM.Ks/ST |
| |
|
Filter added: 2011-10-18 06:51:33
Last update: 2020-12-10 16:33:15 | | NIRT/NSFCAM.K | 21939.23 | 22005.45 | 21840.75 | 19859.30 | 24015.14 | 3241.18 | 647.72 | 4.07e-11 | NIRT | NSFCAM | NSFCAM K | | NIRT/NSFCAM.H2-2 | 22398.36 | 22398.77 | 22397.74 | 22176.70 | 22624.40 | 229.90 | 628.72 | 3.76e-11 | NIRT | NSFCAM | NSFCAM H2-2 | | NIRT/NSFCAM.Kcont | 22668.53 | 22670.47 | 22665.63 | 22180.28 | 23176.27 | 532.31 | 615.55 | 3.59e-11 | NIRT | NSFCAM | NSFCAM Kcont | | NIRT/NSFCAM.Spencer23 | 22747.26 | 22765.41 | 22720.78 | 21496.06 | 24112.65 | 1621.37 | 611.33 | 3.55e-11 | NIRT | NSFCAM | NSFCAM Spencer 2.3 | | NIRT/NSFCAM.CO | 22995.27 | 22995.84 | 22994.44 | 22716.90 | 23264.28 | 276.89 | 600.46 | 3.4e-11 | NIRT | NSFCAM | NSFCAM CO | | NIRT/NSFCAM.Lp | 37571.65 | 37741.32 | 37301.73 | 33056.80 | 42253.79 | 6829.04 | 248.31 | 5.35e-12 | NIRT | NSFCAM | NSFCAM Lp | | NIRT/NSFCAM.Mp | 46829.41 | 46847.29 | 46802.98 | 45086.25 | 48872.39 | 2404.85 | 164.74 | 2.25e-12 | NIRT | NSFCAM | NSFCAM Mp |
|
| 
 ≡ 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=21454.1716538&id=NIRT/NSFCAM.Ks><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=21307.8242136&id=NIRT/NSFCAM.Ks><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=21396.149957248&id=NIRT/NSFCAM.Ks><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=21346.4117717&id=NIRT/NSFCAM.Ks><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=3051.52467592,21454.0693764,0.966156&id=NIRT/NSFCAM.Ks><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://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>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}
