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data:data_analysis_manual [2022/03/31 23:46]
Peter Young [Flare lines]
data:data_analysis_manual [2022/08/27 10:45] (current)
eric buchlin [Find data] Releases, SOAR TAP and sunpy-soar, pre-analysis
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 SPICE papers: SPICE papers:
   * Instrument paper: //Astron. Astrophys.//,​ **642**, A14, 2020. [[https://​doi.org/​10.1051/​0004-6361/​201935574|DOI]],​ [[https://​ui.adsabs.harvard.edu/​abs/​2020A%26A...642A..14S|ADS]]   * Instrument paper: //Astron. Astrophys.//,​ **642**, A14, 2020. [[https://​doi.org/​10.1051/​0004-6361/​201935574|DOI]],​ [[https://​ui.adsabs.harvard.edu/​abs/​2020A%26A...642A..14S|ADS]]
-  * First results: ​Submitted+  * First results: ​//Astron. Astrophys.//,​ **656**, A38, 2021. [[https://​doi.org/​10.1051/​0004-6361/​202141221|DOI]],​ [[https://​ui.adsabs.harvard.edu/​abs/​2021A%26A...656A..38F/​abstract|ADS]]
   * In-flight calibration:​ Not available yet   * In-flight calibration:​ Not available yet
   * Other papers can be found in the [[https://​ui.adsabs.harvard.edu/​public-libraries/​rIi8Zx4zTg2stP5nTojx2Q|SPICE ADS library]]   * Other papers can be found in the [[https://​ui.adsabs.harvard.edu/​public-libraries/​rIi8Zx4zTg2stP5nTojx2Q|SPICE ADS library]]
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 The full SPICE data set (to be cited in papers) has a DOI: [[https://​doi.org/​10.5270/​esa-lbmdy7c|doi:​10.5270/​esa-lbmdy7c]]. DOIs will also be attributed to each data release. The full SPICE data set (to be cited in papers) has a DOI: [[https://​doi.org/​10.5270/​esa-lbmdy7c|doi:​10.5270/​esa-lbmdy7c]]. DOIs will also be attributed to each data release.
  
 +
 +When browsing the SPICE catalog and archive you will see the following codes:
 +
 +**n-ras**: a raster scan with one of the narrow slits (2", 4" or 6")\\
 +**w-ras**: a raster scan with the wide slit (30"​)\\
 +**n-sit**: a sit-and-stare study with one of the narrow slits\\
 +**w-sit**: a sit-and-stare study with the wide slit\\
 +**n-exp**: a single exposure with a narrow slit that yields the entire spectrum\\
 +**w-exp**: a single exposure with the wide slit that yields the entire spectrum
 +
 +For the "​ras"​ data, the FITS file contains a single raster scan. If the raster is repeated, then each repeat goes in a new file.
 +
 +Rasters can be performed in the "​exp"​ mode, but each exposure will end up in a different FITS file.
 ===== Find data ===== ===== Find data =====
  
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     - Run SPICE\_GEN\_CAT. The catalogue file will be written to the data tree root directory (you need to have write access)     - Run SPICE\_GEN\_CAT. The catalogue file will be written to the data tree root directory (you need to have write access)
     - Run SPICE\_CAT     - Run SPICE\_CAT
-  * The catalogue file generated from all SPICE files is accessible [[http://​astro-sdc-db.uio.no/​vol/​spice/​fits/​spice_catalog.txt|through the UiO website]] (restricted to SPICE team)+  * The catalogue file generated from all SPICE files is accessible [[http://​astro-sdc-db.uio.no/​vol/​spice/​fits/​spice_catalog.csv|through the UiO website]] (restricted to SPICE team)
   * How to use it in [[data:​data_analysis_manual:​read_catalog_python|Python]]   * How to use it in [[data:​data_analysis_manual:​read_catalog_python|Python]]
-  * A CSV export of the part of the catalogue corresponding to each release is provided with the release.+  ​* How to use it in IDL: [[data:​data_analysis_manual#​the_spice_catalog|see below]] 
 +  ​* A CSV export of the part of the catalogue corresponding to each release is provided with the data releases. 
 + 
 +Data releases: 
 + 
 +  * All L1+ files with their latest versions (at a given date) are collected in a data release 
 +  * The releases are provided under https://​spice.osups.universite-paris-saclay.fr/​spice-data/​ 
 +  * The latest release is updated with new data as they arrive (and after a superficial validation step). 
 +  * Each release includes release notes, and a CSV catalog of the files in the release. 
 +  * The SPICE data used in a publication have to be cited properly. How to do this is explained in the release ​notes.
  
-SOAR (and institute mirrors):+SOAR:
   * [[https://​soar.esac.esa.int/​|SOAR]] ([[https://​issues.cosmos.esa.int/​solarorbiterwiki/​display/​SOSP/​SOAR+(Solar+Orbiter+Archive)+-+How+to+Use|how to use it]])   * [[https://​soar.esac.esa.int/​|SOAR]] ([[https://​issues.cosmos.esa.int/​solarorbiterwiki/​display/​SOSP/​SOAR+(Solar+Orbiter+Archive)+-+How+to+Use|how to use it]])
 +  * SOAR has a TAP interface that can be used for automated queries
 +  * The ''​sunpy-soar''​ Python module uses this TAP interface for queries through SunPy/Fido
 +    * Only queries by instrument / time / level / product [[https://​github.com/​sunpy/​sunpy-soar/​issues/​46|at the moment]]
  
 Quicklooks: Quicklooks:
   * Quicklook archive (to be developed)   * Quicklook archive (to be developed)
   * [[https://​github.com/​ITA-Solar/​solo-spice-ql/​wiki/​spice_xfiles|Quicklooks in SSW]]   * [[https://​github.com/​ITA-Solar/​solo-spice-ql/​wiki/​spice_xfiles|Quicklooks in SSW]]
 +  * [[https://​git.ias.u-psud.fr/​spice/​pre-analysis/​|Pre-analysis]] (per STP)
  
-In the future: VSO. VSO through SSW or sunpy. Sunpy/Fido+VSO: 
 +  * (in the near future
 +  * Accessible ​through ​IDL/SSW and Python/Fido
  
 ===== Tips and Advice on Analyzing SPICE Data ===== ===== Tips and Advice on Analyzing SPICE Data =====
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 | d->​get\_number\_windows() ​     | No. of spectral windows ​               | | d->​get\_number\_windows() ​     | No. of spectral windows ​               |
 | d->​get\_window\_data(i,/​load) ​ | Extract a data window ​                 | | d->​get\_window\_data(i,/​load) ​ | Extract a data window ​                 |
 +| d->​get\_lambda\_vector(i) ​     | Get wavelength vector for the window ​                 |
 | d->​get\_header(i) ​             | Extract a data window header ​          | | d->​get\_header(i) ​             | Extract a data window header ​          |
 | d->​get\_window\_id(i) ​         | Get the data window ID                 | | d->​get\_window\_id(i) ​         | Get the data window ID                 |
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 Use a 3-button mouse to browse the images and spectra: the middle button allows you to select a new pixel, the left button zooms in and the right button zooms out. Use a 3-button mouse to browse the images and spectra: the middle button allows you to select a new pixel, the left button zooms in and the right button zooms out.
 +
 +
 +===== Ephemeris information =====
 +
 +You can access ephemeris information from the SPICE headers. For example, the keywords:
 +
 +DSUN\_AU - distance of the spacecraft from the Sun in AU\\
 +EAR\_TDEL - light travel time from the spacecraft to Earth (seconds)
 +
 +The full list of keywords is given in the [[https://​spice.ias.u-psud.fr/​spice-data/​documents/​SPICE-UIO-DPDD-0002-1.4-Data_Product_Description_Document.pdf|DPDD]] - search for "Solar ephemeris keywords"​.
 +
 +Users should make sure to correct the SPICE observing times for EAR\_TDEL in order to compare with observations from Earth-orbiting spacecraft. This is especially important for highly-dynamic structures such as flares or CMEs.
 +
  
 ===== Read and display data (Python) ===== ===== Read and display data (Python) =====
data/data_analysis_manual.1648763166.txt.gz · Last modified: 2022/03/31 23:46 by Peter Young