AKARI IRC Pointed Observation Images

AKARI/IRC Pointed Observation Images (Phase 1&2)

Last Update : 2017/12/19

What's New!

2017/12/19: Egusa et al. 2016 reference updated
2016/07/06: Release a minor update of IRC Data User Manual (ver2.2)
2016/02/12: A paper (Egusa et al. 2016) of the data processing/calibration and basic performance of the data is now available.
2015/11/30: New warning 'Wusv' for MIR stacked images has been introduced. See Changes and IRC_DUM.pdf for details.
2015/05/25: Two data (OBSID = 5120023_001 and 5120025_001) are moved from DTIRC to DTFIS, as they are parallel observations of corresponding FIS obsevations. No change in the data contents.
2015/04/30: Version 1.0.1: Updates on WCS eye-checking result. See Changes and release notes for details.
2015/04/30: Data tables become sortable.
2015/03/31: AKARI/IRC Pointed Observation Images (Phase 1&2) Version 1 Public Release

[Brief Description]

This is the first release of processed images from Infrared Camera (IRC) on board the Japanese infrared satellite AKARI during Phase 1&2 pointed observations. The field of view of IRC is 10 arcmin and the PSF size is ~5 arcseconds in FWHM. The 9 photometric filters continuously cover the wavelength range from ~2 to ~26 micrometers. The above figures show examples of processed images as 3-color composites.

allsky
The above figure shows target positions in the Galactic coordinates from ~4000 (Red: ~3000 photometric, Blue: ~1000 spectroscopic) observations. The updated toolkit and data users manual are also available from the following links.

[Documents]

Start-up guide (PDF; 5.9 MB)
A summary of this release and quick guide for users.
Change Log
ReadMe_v1.0.1.txt
Description of data files, file formats, contents, and caveats for the users are presented. Users of the data are strongly recommended to read this note prior to analyze the data.
- summary201504.dat (1.9 MB)
  The full list of observations and summary of pipeline processing. Description for the columns is available in ReadMe.txt.
release_notes_v1.0.1.txt
Release notes for users. Process procedures and limitations are described in more detail than ReadMe.txt. Users of the data are strongly recommended to read this note prior to analyze the data.
IRC_DUM.pdf [v2.2] (11 MB)
IRC Data Users Manual with full description of the instruments, calibration, and data processing. Major updates are highlighted with a bold face.
Following paper describes details of the data processing and calibration, and basic performance of the data.
- Egusa F. et al., 2016, PASJ, 68, 19 (19pp) [ADS] [PASJ]

[Data Search]

New data packages with processed images are available from the following links. For raw data packages, please go to the DARTS website.
Caution: Please contact us when you use the stacked data with the warning of 'Wusv'.

Interactive data search
- By Source Name or Position
List of observations

[Imaging Toolkit]

irc20150331.tar.gz (26MB)
The latest (ver.150331) IRC imaging toolkit for Phase 1&2 used to produce the data in this release.
Major improvements are
- better calibration of time-dependent dark and MIR-S flat
- better stacking method
- better WCS matching
which inrease the S/N and reliability of output images.
Please read README_20150331.txt included in the package and the Data Users Manual (listed above) before using the toolkit.
Raw data to be processed with the toolkit are available from the DARTS website.

[Scientific Analysis]

The use of this data for the scientific analysis should follow the the guidelines for publication: AKARI Guidelines for Publication

[Contact]

Questions and comments are most appreciated. Please send them via helpdesk (see below for contact address).

AKARI Observer's Page

iris_help @ ir.isas.jaxa.jp