||Department of Physics
Basic analysis using Gaia
is an image display and analysis tool. It provides the
usual facilities of image display tools, plus more astronomically
useful ones such as aperture & optimal photometry, contouring,
source detection, surface photometry, arbitrary region analysis,
celestial coordinate readout, calibration and modification, grid
overlays, blink comparison, defect patching and the ability to
query on-line (WWW) catalogues."
How to use Gaia
- Login into one of the AstroLab's Linux workstations
- Start an xterm command line window
- Make a directory for your workspace, e.g.
- Copy the required images from the "archive" or "current" into your workspace, e.g.
\cp -pr /archive/12/2005/05_02_01/saturn.ST9 .
\cp -pr /archive/archive/draco/2005/05_02_01/0171.fits .
- Initialise the Starlink
convert package, e.g.
- Gaia can now display a variety of formats including
and SBIG's compressed format (.ST9).
Gaia assumes that SBIG frames have
the .ST9 file extension. To display the image e.g.