Suzaku Archive: Getting started
General
The Suzaku archive is divided in two main directories science and trend data. The science
data are organized by observations, where an observation contains data from all instruments
and is identified by a 9 digit number.
The /obs directory contain the science data and it is subdivided in directories named
after the first digits of the sequence number under which the observations are located.
The trend area instead is divided in months interval named YYYY_NN, where YYYY is the year
and NN is the numeric value for the month. For each month the trend (or monitor) data are organized
by type for each of the instrument. The archive structure is therefore:
Archive access : Web, wget, download script
At the HEASARC the Suzaku archive can be accessed using the web interfaces Browse , the wget protocol, or the download script.
- Access via Web : The archive access via the Web makes use of database tables to search for the science data. The currently available tables are :
- suzamaster records high-level information for each Suzaku observation.
- suzaxislog dedicated to the XIS to allow searches of the different instrument configurations
- Wget : If you have wget
installed, and the observation id is already known, the data can be retrieved via 'wget'.
For example using the HHTP protocal, if the user wants to retrieve the sequence '100001010' observed
in August 2005, she/he can retrive the entire sequence (see Example 1) or data for a single instrument
(see Example 2)
Example 1 (all on one line) wget -q -nH --cut-dirs=5 -r -l0 -c -N -np -R 'index*' -erobots=off --retr-symlinks https://heasarc.gsfc.nasa.gov/FTP/suzaku/data/obs/1/100001010/ Example 2 (all on one line) wget -q -nH --cut-dirs=5 -r -l0 -c -N -np -R 'index*' -erobots=off --retr-symlinks https://heasarc.gsfc.nasa.gov/FTP/suzaku/data/obs/1/100001010/xis/
-
download_wget : donwload_wget is a PERL script that
uses the wget protocol, similarly to the example above, but simplify the command and allow for more flexility.
You can retrive the
download_wget and place it in your local machine
Example: To download a specific sequence type:
> download_wget.pl https://heasarc.gsfc.nasa.gov/FTP/suzaku/data/obs/1/100001010 To get help type : > download_wget.pl help
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