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data:data_analysis_manual

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Data analysis user's manual

This manual is very preliminary, please be patient or help adding what is missing.

Introduction

SPICE instrument and capabilities

SPICE papers:

  • Instrument paper: Astron. Astrophys., 642, A14, 2020. DOI, ADS
  • First results: Submitted
  • In-flight calibration: Not available yet
  • Other papers can be found in the SPICE ADS library

SPICE online information:

Data products

The data levels, FITS files, and headers are described in

The full SPICE data set (to be cited in papers) has a DOI: doi:10.5270/esa-lbmdy7c. DOIs will also be attributed to each data release.

Find data

UiO catalogue:

  • Can be generated with IDL/SolarSoft (SSW) from a local data tree:
    1. Make sure $SPICE_DATA points to the data tree you want to have catalogued
    2. Run SPICE_GEN_CAT. The catalogue file will be written to the data tree root directory (you need to have write access)
    3. Run SPICE_CAT
  • The catalogue file generated from all SPICE files is accessible through the UiO website (restricted to SPICE team)
  • How to use it in Python
  • A CSV export of the part of the catalogue corresponding to each release is provided with the release.

SOAR (and institute mirrors):

Quicklooks:

In the future: VSO. VSO through SSW or sunpy. Sunpy/Fido

Access data

SPICE team internal access:

Once the data will be released:

Read and display data (IDL)

External links:

Environment variables

Choose a location to store your SPICE data (e.g., '/my_data/spice') and then point the environment variable $SPICE_DATA to it:

''setenv,'SPICE_DATA=/my_data/spice' ''

This line should be added to your IDL_STARTUP file.

Data are organized under $SPICE_DATA with a year/month/day subdirectory structure. See the “Ingesting downloaded data” section below.

The SPICE catalog

The SPICE catalog can be accessed by doing:

IDL> spice_cat

Use the “SPICE_GEN_CAT” button to make sure you have the most up-to-date list.

Reference data-sets

Perhaps the most useful data from the early commissioning phase (before July 2020) are the raster scans on 28-May-2020.

16:05, 16:50 - disk center rasters with 20s exposures
17:50, 18:35 - north limb rasters with 20s exposures
19:35, 20:20 - south limb rasters with 20s exposures
21:20, 22:05 - west limb rasters with 20s exposures
23:05, 23:47 - east limb rasters with 20s exposures

The first true science observations were obtained during 18 to 22 November 2020. For example, an active region can be seen in the raster beginning 19:57 UT on 18-Nov-2020.

Read and display data (Python)

Links:

Analyze data

Instrument performance

Calibration reports (links)

Data calibration applied to L2 data (links)

Known instrumental artefacts: see release notes.

Line fitting

TBW

data/data_analysis_manual.1625072589.txt.gz · Last modified: by Peter Young