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2022 March 19: The HLA footprint viewer no longer works
because it relies on Flash. If you need footprints, we
recommend using the
MAST Portal.
Note that the Portal also gives access to the new
Hubble Advanced Products (HAP), which include more recent
observations.
The HLA contains no observations acquired after
2017 October 1.
Hubble Legacy Archive Catalog Plotting Tool Help
You can plot the properties of sources from HLA source lists using the
catalog plotting tool (accessible via
either
the inventory
or images
view). The catalog plotting tool is implemented using the HTML5 Canvas
technology and works only on web browsers that support HTML5 (Firefox, Safari, Chrome,
Internet Explorer 9, etc.).
- Change the X and Y axis variables
by clicking on the Plot Options button.
- Change the catalog being plotted
using the SExtractor/DAOPhot popup menu.
- Change the limits of the axes
by clicking and dragging within the window to select the viewport.
Reset the axis scaling to the default using the Reset
Zoom button. You can also change the axis limits using the
Plot Options menu, which can be used to set
the limits manually, to flip the limits so the axis limits run from the largest
to smallest value, and to select logarithmic scaling for the axes.
- Select a subset of points
by dragging with the shift key held down. Selected points are displayed
in a different color. If you change the axis variables, you can see
where the selected points lie using different parameters. To clear
the selection, shift-drag over a small area that contains no points.
- See the parameters for a point
by clicking on a point with your keyboard's Option (or Alt) key
held down. A window will pop up showing all the source parameters.
- See the parameters for the entire catalog
by clicking the Show All Sources button.
The pop-up window displays the table using the same approach used for
the Inventory view. You can sort
the table and filter by column values. At the moment the filtering
does not apply to the catalog plot, but that is a high priority for
a future enhancement.
- Print the current view
by clicking the printer icon. Note that printing the page using the browser's
Print... menu (or the equivalent shortcut command)
does not usually produce good results for these plots: the plot may
not appear or may spill off the page. Use the Print button to get
better results.
- The help button opens a new window showing this page.
