Asca

OSSERVATORIO ASTRONOMICO DI PALERMO GIUSEPPE S. VAIANA

Progetti di ricerca

Asca (1993 -)

Documentation and Resources:

This page contains an extensive set of documentation of ASCA data and its reduction and analysis. Links are also provided to the latest versions of these documents and to various ASCA-related Web Pages.

Organization of the Data

All of the data products reside in a "numbered" directory and are distributed among thesub-directories listed below.

If you are unfamiliar with these files, you should consult the ASCA Getting Started Guide.

Each of the sub-directory links below points to the actual directory containing the data on this disc.

aux Various files used for documentation, and other purposes.
The filter file needed to screen data is in this directory. For large
sequences, some of these files may have been compressed with
"gzip". calib Calibration files used to process this sequence Note
that these files are current as of the processing date, and
more recent ones may be available

images Images and source lists derived from the screened
data. spectra Spectra and response matrices extracted from the
screened data for each source

lcurves Light curves extracted from the screened data for each
detected source. screened Event files which have had "bad" data removed.
They are good for your first look at the data.

unscreened Event files which have been calibrated but not
reduced. These are the most basic files to use in your data
reduction. telem Raw spacecraft telemetry wrapped in FITS files.
For large sequences, these files may have been compressed
with "gzip"

aux Various files used for documentation, and other purposes. The filter file needed to screen data is in this directory. For large sequences, some of these files may have been compressed with "gzip".	calib Calibration files used to process this sequence Note that these files are current as of the processing date, and more recent ones may be available
images Images and source lists derived from the screened data.	spectra Spectra and response matrices extracted from the screened data for each source
lcurves Light curves extracted from the screened data for each detected source.	screened Event files which have had "bad" data removed. They are good for your first look at the data.
unscreened Event files which have been calibrated but not reduced. These are the most basic files to use in your data reduction.	telem Raw spacecraft telemetry wrapped in FITS files. For large sequences, these files may have been compressed with "gzip"