DARTS at ISAS/JAXA

Ginga LAC 観測データ

概要

説明

This is the observation data obtained by the Large Area Counter (LAC) onboard Ginga satellite. It contains telemetry data (First Reduction File =FRF) and summary lists of the LAC housekeeping and attitude information (LACDUMP files). Each FRF is made per one satellite-operation pass (a contact or remote pass), while LACDUMP is per one day. These files are NOT divided at the times of maneuvers and therefore may contain data of previous and/or next targets as well as those during maneuvers. The recommended background data are simply selected from all the blank sky observations performed within 3 days. Before using them, however, users are strongly advised to check if they are really applicable for background subtraction in each case.

Data Analysis

Currently, users can carry out (1) spectral analysis and (2) timing analysis of LAC data from pointing-mode observations. Detailed analysis of LAC scan-mode data (such as fitting of the scan profile) is not supported at present.

Please see the Data Analysis page for details.

キーワード

GINGA 📓📅ASTRO-C 📓📅Large Area Counter (LAC) 📓📅Astrophysics 📓📅X-ray 📓📅

バージョン

1.0

公開日

2004

時間範囲

from 1987-03-05 to 1991-10-29

識別子

タイトル: Ginga LAC 観測データ
ID: darts:ginga-lac-data
URL: https://darts.isas.jaxa.jp/datasets/darts:ginga-lac-data

データ配布

https://data.darts.isas.jaxa.jp/pub/ginga/GINGA-LAC-1.0/ (application/fits, text/plain, application/pdf, application/postscript)

データ構造 (自動生成されたサマリー)

pub/ginga/GINGA-LAC-1.0/
├── 00readme.txt
├── ginga_obs.dump, .txt
├── dat/
│   ├── 870309909/
│   ├── 870409800/
│   ├── ...
│   └── {NNNNNNNNN}/
│       ├── frf/          (same as fits_frf/{YYMM}/FR{YYMMDD}.[R|S]{NNNN}.fits.gz)
│       ├── frf_bgd/      (same as fits_frf/{YYMM}/FR{YYMMDD}.[R|S]{NNNN}.fits.gz)
│       ├── lacdump/      (same as lacdump/J{NNNNNN})
│       └── lacdump_bgd/  (same as lacdump/J{NNNNNN})
├── doc/  [not expanded]
├── fits_frf/
│   ├── README
│   ├── check_max_tdiff.pl, .log
│   ├── select_large_maxdiff.pl
│   ├── time_correction.pl
│   ├── time_correction_FR900127.R0517.pl
│   └── 8703/, 8704/, ..., {YYMM}/
│       ├── time_correction.log
│       └── FR{YYMMDD}.[R|S]{NNNN}.fits.gz
├── frf/                  (same as fits_frf/{YYMM}/FR{YYMMDD}.[R|S]{NNNN}.fits.gz)
└── lacdump/
    ├── README_in_Japanese
    └── J{NNNNNN}

作成者

ISAS > Institute of Space and Astronautical Science (宇宙科学研究所) [ROR: 034gcgw60]

貢献者

GSFC > Goddard Space Flight Center (GSFC > ゴダード宇宙飛行センター) [ROR: 0171mag52]
University of Leicester (レスター大学) [ROR: 04h699437]

著作権者

JAXA > Japan Aerospace Exploration Agency (宇宙航空研究開発機構) [ROR: 059yhyy33]
ISAS > Institute of Space and Astronautical Science (宇宙科学研究所) [ROR: 034gcgw60]

ライセンス

https://www.isas.jaxa.jp/en/researchers/data-policy/

参考文献

Makino, F. et al., (1987) Astrophysical Letters - The X-ray Astronomy Satellite ASTRO-C https://ui.adsabs.harvard.edu/abs/1987ApL....25..223M/abstract
Turner, M. J. L. et al. (1989) Publications of the Astronomical Society of Japan - The large area counter on Ginga. https://ui.adsabs.harvard.edu/abs/1989PASJ...41..345T%2Fabstract
Hayashida, K. et al. (1989) Publications of the Astronomical Society of Japan - The origin and behavior of the background in the large area counters on GINGA and its effect on the sensitivity https://ui.adsabs.harvard.edu/abs/1989PASJ...41..373H%2Fabstract