DSCOVR :DSCOVR (Deep Space Climate Observatory) will succeed NASA's Advanced Composition Explore's (ACE) role in supporting solar wind alerts and warnings from the L1 orbit, the neutral gravity point between the Earth and sun approximately one million miles from Earth. DSCOVR/EPIC :EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer (317 – 780 nm) onboard NOAA's DSCOVR (Deep Space Climate Observatory) spacecraft.id:DSCOVR/EPIC.a |
| DSCOVR/EPIC.317nm | 3174.06 | 3174.07 | 3174.04 | 3160.00 | 3190.00 | 12.17 | 1173.36 | 3.49e-9 | DSCOVR | EPIC | DSCOVR EPIC 317nm band normalized SRF | | DSCOVR/EPIC.317nm | Filter Description | Filter ID (?) : | DSCOVR/EPIC.317nm |
| Description (?) : | DSCOVR EPIC 317nm band normalized SRF |
| Phot.System (?) : | EPIC |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | DSCOVR |
| Instrument (?) : | EPIC |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3174.06 | ------- | (Angstrom) |
| λmean (?) : |
3174.07 | ------- | (Angstrom) |
| λcen (?) : |
3174.01 | ------- | (Angstrom) |
| λeff (?) : |
3174.04 | ------- | (Angstrom) |
| λpeak (?) : |
3174.17 | ------- | (Angstrom) |
| λpivot (?) : |
3174.06 | ------- | (Angstrom) |
| λphot (?) : |
3174.04 | ------- | (Angstrom) |
| λmin (?) : |
3160.00 | ------- | (Angstrom) |
| λmax (?) : |
3190.00 | ------- | (Angstrom) |
| Weff (?) : |
12.17 | ------- | (Angstrom) |
| FWHM (?) : |
10.80 | ------- | (Angstrom) |
| Af/AV (?) : |
1.77 | ------- | () |
| Fsun (?) : |
74.74 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
EPIC Transmission components: Filter + Instrumentid:DSCOVR/EPIC.317nm | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.49157e-9 | (erg/cm2/s/A) |
| |
------- |
1173.36 | (Jy) |
| PhotCal ID (?) : |
DSCOVR/EPIC.317nm/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.08048e-8 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| PhotCal ID (?) : |
DSCOVR/EPIC.317nm/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1220.21 | (Jy) |
| PhotCal ID (?) : |
DSCOVR/EPIC.317nm/ST |
| |
|
Filter added: 2020-08-28 16:31:29
Last update: 2021-07-27 19:00:54 | | DSCOVR/EPIC.325nm | 3249.35 | 3249.35 | 3249.34 | 3240.00 | 3260.20 | 10.56 | 1195.39 | 3.39e-9 | DSCOVR | EPIC | DSCOVR EPIC 325nm band normalized SRF | | DSCOVR/EPIC.340nm | 3397.59 | 3397.63 | 3397.63 | 3366.71 | 3424.75 | 27.63 | 1262.34 | 3.28e-9 | DSCOVR | EPIC | DSCOVR EPIC 340nm band normalized SRF | | DSCOVR/EPIC.388nm | 3877.91 | 3877.93 | 3875.84 | 3854.12 | 3902.41 | 26.26 | 3190.90 | 6.36e-9 | DSCOVR | EPIC | DSCOVR EPIC 388nm band normalized SRF | | DSCOVR/EPIC.443nm | 4423.02 | 4423.05 | 4423.03 | 4399.17 | 4451.28 | 27.50 | 4439.27 | 6.8e-9 | DSCOVR | EPIC | DSCOVR EPIC 443nm band normalized SRF | | DSCOVR/EPIC.551nm | 5514.61 | 5514.64 | 5514.59 | 5490.43 | 5540.85 | 30.02 | 3592.31 | 3.54e-9 | DSCOVR | EPIC | DSCOVR EPIC 551nm band normalized SRF | | DSCOVR/EPIC.680nm | 6797.85 | 6797.89 | 6797.82 | 6757.30 | 6862.49 | 20.04 | 2883.98 | 1.87e-9 | DSCOVR | EPIC | DSCOVR EPIC 680nm band normalized SRF | | DSCOVR/EPIC.687nm | 6875.29 | 6875.29 | 6875.29 | 6865.37 | 6889.77 | 8.69 | 2846.20 | 1.81e-9 | DSCOVR | EPIC | DSCOVR EPIC 687nm band normalized SRF | | DSCOVR/EPIC.764nm | 7636.70 | 7636.70 | 7636.70 | 7624.82 | 7650.76 | 10.38 | 2521.19 | 1.3e-9 | DSCOVR | EPIC | DSCOVR EPIC 764nm band normalized SRF | | DSCOVR/EPIC.779nm | 7792.20 | 7792.20 | 7792.23 | 7771.31 | 7812.42 | 18.79 | 2447.98 | 1.21e-9 | DSCOVR | EPIC | DSCOVR EPIC 779nm band normalized SRF |
|
| 
 ≡ 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=3174.0702657068&id=DSCOVR/EPIC.317nm><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=3174.0356641405&id=DSCOVR/EPIC.317nm><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=3174.0577794413&id=DSCOVR/EPIC.317nm><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=3174.0439242025&id=DSCOVR/EPIC.317nm><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=12.172401702825,3174.0064715661,0.42209934&id=DSCOVR/EPIC.317nm><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><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}
