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akari [2017/08/31 12:19]
ahughes
akari [2023/04/11 15:17] (current)
Déborah Paradis
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 ====== AKARI ====== ====== AKARI ======
  
-The AKARI satellite ​was launched in February 2006 and the all-sky survey was performed during the period April 2006 — August 2007Its telescope +The Japanese ​AKARI mission ​was launched in February 2006. The telescope 
-mirror had a diameter of 685 mm and was capable of observing ​across the ''​2-180'' ​microns ​near to far-infrared spectral regions. +mirror had a diameter of 68.5 cm and was capable of observing ​infrared wavelengths between ​and 180 microns. ​AKARI was equipped with two science instruments: ​the FIS (Far-Infrared Surveyor) for far-infrared observations and the IRC (InfraRed Camera) for near and mid-infrared observations.
-The sky coverage of the Far-Infrared Surveyor ​was 99%, with +
-97% of the sky covered with multiple scans. The observed +
-wavelength coverage spans 50-180 microns continuously with four photometric bands, centered at 65, 90, 140 and 160 microns, at a resolution of 1' to 2'.+
  
 +CADE currently only serves data from the FIS all-sky survey. The survey data spans 50-180 microns continuously with four photometric bands centered at 65 microns, 90 microns, 140 microns, and 160 microns with angular resolution ranging from 1 to 1.5 arcmin. The sky coverage is greater than 99% for each band, with 97% of the sky covered with multiple scans. Absolute flux calibration was determined by comparison with COBE/DIRBE data.  ​
  
-A detailed description ​of FIR AKARI survey can be found in the paper 'The AKARI far-infrared all-sky survey ​maps' ​by Doi et al, 2015, PASJ, 67, 50. +The units of the Healpix ​maps are ''MJy/sr''​.\\
-http://​adsabs.harvard.edu/​abs/​2015PASJ...67...50D+
  
-Data in the WCS format can be downloaded here: http://www.ir.isas.jaxa.jp/​AKARI/​Archive/​Images/​FIS_AllSkyMap/​+Healpix maps made by DParadis.
  
 +=== References ===
 +  * 'The AKARI far-infrared all-sky survey maps' by Doi, Y. et al, 2015, PASJ, 67, 50. http://​adsabs.harvard.edu/​abs/​2015PASJ...67...50D
 +
 +  * '​Calibration of the AKARI far-infrared all-sky survey maps' by Takita, S. et al, 2015, PASJ, 67, 51 http://​adsabs.harvard.edu/​abs/​2015PASJ...67...51T
 +
 +^  __**AKARI 65**__ ​ ^  __**AKARI 160**__ ​ ^
 +|  <​html><​div id="​aladin-lite-div-akari65"​ class="​aladin-lite-container"></​div></​html> ​ |  <​html><​div id="​aladin-lite-div-akari160"​ class="​aladin-lite-container"></​div></​html> ​ |
  
 === Maps === === Maps ===
  
-65 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_65_1_4096.fits|AKARI_65_1_4096.fits]]+65 microns ​: \\ 
 +- Original resolution: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_65_1_4096.fits|AKARI_65_1_4096.fits]]
 <​html>​ <​html>​
 <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari65)">​Aladin</​button>​ <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari65)">​Aladin</​button>​
-</​html>​+</​html> ​\\ 
 +- 4 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_65_4arcm_1_2048.fits|AKARI_65_4arcm_1_2048.fits]] \\ 
 +- 16.2 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_65_16p2_1_1024.fits|AKARI_65_16p2_1_1024.fits]] \\ 
 +- 1 degree: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_65_1deg_1_256.fits|AKARI_65_1deg_1_256.fits]] \\
  
-90 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideS_1_4096.fits|AKARI_WideS_1_4096.fits]]+90 microns ​: \\ 
 +- Original resolution: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideS_1_4096.fits|AKARI_WideS_1_4096.fits]]
 <​html>​ <​html>​
 <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari90)">​Aladin</​button>​ <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari90)">​Aladin</​button>​
-</​html>​+</​html> ​\\ 
 +- 4 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideS_4arcm_1_2048.fits|AKARI_WideS_4arcm_1_2048.fits]] \\ 
 +- 16.2 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideS_16p2_1_1024.fits|AKARI_WideS_16p2_1_1024.fits]] \\ 
 +- 1 degree: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideS_1deg_1_256.fits|AKARI_WideS_1deg_1_256.fits]] \\
  
-140 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideL_1_4096.fits|AKARI_WideL_1_4096.fits]]+ 
 +140 microns ​: \\ 
 +- Original resolution: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideL_1_4096.fits|AKARI_WideL_1_4096.fits]]
 <​html>​ <​html>​
 <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari140)">​Aladin</​button>​ <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari140)">​Aladin</​button>​
-</​html>​+</​html> ​\\ 
 +- 4 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideL_4arcm_1_2048.fits|AKARI_WideL_4arcm_1_2048.fits]] \\ 
 +- 16.2 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideL_16p2_1_1024.fits|AKARI_WideL_16p2_1_1024.fits]] \\ 
 +- 1 degree: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_WideL_1deg_1_256.fits|AKARI_WideL_1deg_1_256.fits]] \\ 
  
-160 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_160_1_4096.fits|AKARI_160_1_4096.fits]]+160 microns ​: \\ 
 +- Original resolution ​: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_160_1_4096.fits|AKARI_160_1_4096.fits]]
 <​html>​ <​html>​
 <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari160)">​Aladin</​button>​ <button class="​aladin-btn"​ type="​button"​ onclick="​connector.runWithConnection(akari160)">​Aladin</​button>​
-</​html>​+</​html> ​\\ 
 +- 4 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_160_4arcm_1_2048.fits|AKARI_160_4arcm_1_2048.fits]] \\ 
 +- 16.2 arcmin: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_160_16p2_1_1024.fits|AKARI_160_16p2_1_1024.fits]] \\ 
 +- 1 degree: [[http://​cade.irap.omp.eu/​documents/​Ancillary/​AKARI/​AKARI_160_1deg_1_256.fits|AKARI_160_1deg_1_256.fits]] \\ 
  
  
-^  __**AKARI 65**__ ​ ^  __**AKARI 160**__ ​ ^ 
-|  <​html><​div id="​aladin-lite-div-akari65"​ class="​aladin-lite-container"></​div></​html> ​ |  <​html><​div id="​aladin-lite-div-akari160"​ class="​aladin-lite-container"></​div></​html> ​ | 
  
  
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 </​html>​ </​html>​
  
 +===HiPS ===
  
 +AKARI HiPS are available in Aladin Collections/​Image
 +
 +For SIGMA HiPS, enter the following URLs in Aladin ("​Files"​ then "Use directly a URL"):
 +http://​cade.irap.omp.eu/​documents/​Ancillary/​4Aladin/​AKARI_65_SIGMA ​
 +http://​cade.irap.omp.eu/​documents/​Ancillary/​4Aladin/​AKARI_WideS_SIGMA ​
 +http://​cade.irap.omp.eu/​documents/​Ancillary/​4Aladin/​AKARI_WideL_SIGMA ​
 +http://​cade.irap.omp.eu/​documents/​Ancillary/​4Aladin/​AKARI_160_SIGMA ​
 +
 +OR
 +
 +unzip the directory and put it directly in an Aladin window to display the map
 +
 +Uncertainty at 65 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​hips_zip/​AKARI_65_SIGMA.zip| AKARI_65_SIGMA.zip]]
 +
 +Uncertainty at 90 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​hips_zip/​AKARI_WideS_SIGMA.zip| AKARI_WideS_SIGMA.zip]]
 +
 +Uncertainty at 140 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​hips_zip/​AKARI_WideL_SIGMA.zip| AKARI_WideL_SIGMA.zip]]
 +
 +Uncertainty at 160 microns : [[http://​cade.irap.omp.eu/​documents/​Ancillary/​hips_zip/​AKARI_160_SIGMA.zip| AKARI_160_SIGMA.zip]]
  
  
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 </​script>​ </​script>​
 </​html>​ </​html>​
 +
 +=== Known Issues ===
 +The version 1 AKARI data release has the following known issues:
 +
 +(1) Zodiacal emission. Only the smooth component of the zodiacal emission is subtracted from the image data. The dust band and the Earth-resonant dust ring components remain in the image.
 +
 +(2) Moving bodies. Planets and asteroids in our solar system are not masked during the image processing. So the images near the ecliptic plane may contain the solar system objects.
 +
 +(3) Earth shine. Contamination of the stray light from the Earth shine near the north ecliptic pole is conspicuous especially in the shorter wavebands (N60 and WIDE-S).
 +
 +=== Version History ===
 +  * v1 CADE maps, April 2015
 +
 +=== Original WCS Data ===
 +http://​www.ir.isas.jaxa.jp/​AKARI/​Archive/​Images/​FIS_AllSkyMap/​
 +
 +=== Project Website ===
 +http://​www.ir.isas.jaxa.jp/​AKARI/​
 +