IRSA Viewer Known Bugs and Issues

Software version released: October 2021.

This list last updated: October 2021

Table of Contents

Reporting Bugs
Suggested Browsers
Known Major Bugs
Known Minor Bugs

Reporting Bugs

The known bugs and issues in this version of the IRSA Viewer are listed here. If you think you have found a bug, before reporting it, please check this list, and read the online IRSA Viewer help. It may be a "feature" we already know about.

If you have found a real bug then please do let us know by sending email to the Help Desk. Please include your operating system version and your browser software and version.

Suggested Browsers and Platforms

Older browser versions than these may work, but we may not be able to support bug fixes for them. We make no guarantees for anything on Solaris.

Known Major Bugs

None known.

Known Minor Bugs

  1. Flipping. If you load in images and do not insist on north-up, then the 'flip' tool in the image toolbox works as advertised, e.g., flips just the x-axis. If you rotate north up first, then flip instead flips both the x- and y-axes.

    Workaround: Leave it as not-north up.

    Posted: 14 December 2017

  2. Regions files saved from large catalogs do not include all the sources. If the file has >15,000 sources, it will make a heatmap plot and show only a fraction of the sources on the image, even if the image is zoomed in. Saving the regions file at that point will not save all the sources.

    Workaround: Filter down the catalog by position or SNR until you have <15,000 sources.

    Posted: 14 Oct 2020

  3. Pixel values. when IRSA Viewer displays an image that is an extension of a multi-extension fits file, in the upper right of the tool, it often displays the pixel value as NaN when the number is very, very small or very, very large.

    Workaround: None known.

    Posted: 30 August 2017

  4. Searching in online help doesn't work

    If you try to search the online help using the search box in the upper right, it will complain about security and not actually search.

    Workaround: View the PDF and search within the PDF using your PDF viewer's search feature.

    Posted: 6 December 2019

  5. Mouse control is sometimes lost when resizing a table column. When grabbing the boundary of a table column to resize it, occasionally the mouse action will not be relayed properly, and you lose control of the mouse use easily.

    Workaround: Click on another part of the IRSA Viewer screen, and then you should regain control of your mouse clicks.

    Posted: 11 December 13

  6. VO catalog results not displayed
  7. For VO catalog searches, the tool retrieves the catalog but is unable to display it.

    Workaround: Download the catalog yourself from another VO access point (see here) and upload it separately to the tool.

    Posted: March 23, 2016

Known Idiosyncracies

  1. 'Lost' targets

    In some cases, images will be returned for a search where the target is just off the edge of the viable data from the image. In this case, the requested target will not appear on your retrieved image, and it may not be immediately obvious that your target is not, in fact on the image. This most often happens for big and/or irregular mosaics.

    Posted: 12 November 2013

  2. 'Lost' Downloads

    Depending on how your browser is configured, when you download data, your browser may save it in a counter-intuitive place. Under Safari (on the Mac), for small downloads, it might not appear to have done anything at all. It actually has; it's trying to be helpful by doing it quickly. To find where your browser has put your data, (a) search on your local disk for recently modified files; (b) look in the preferences for the browser configuration option of where to put downloaded files; or (c) look for a directory called "Downloads" or something similar.

    Posted: 12 November 2013

  3. Links from Data Discovery don't open in IRSA Viewer (or NED links don't open in NED)

    Data Discovery is launched from the box on the main IRSA page. When you search on targets in this box, it gives you back a list of data sets. Sometimes, when you click on the IRSA Viewer icon to load data into IRSA Viewer, the browser will start a new session of IRSA Viewer but not actually load anything into it. Sometimes when you click on the NED link, it points to an old (obsolete) version of NED. Either of these happen most frequently on Safari. To fix this, clear your browser cache.

    Posted: 14 Oct 2020

  4. Strange behavior when requesting catalogs

    Our catalog search options depend on other services, often other IRSA services, to search and display the catalogs. Sometimes these other services are down for maintenance or may be experiencing unusually heavy loads. On those occasions, the user may get an "Unresponsive script" error or a "Call failed on the server" error. Please do let us know if you continue to get these errors; we may not be aware of an overloaded or down server.

    Posted: 12 November 2013

  5. Slow behavior when requesting large tables

    When rendering long tables, the table can take several seconds to finish loading. For example, if you conduct a search returning 1000 entries, and change the page size from 50 to 2000, the browser will struggle for a few seconds trying to load the table. A message appears to let you know that that is what is going on.

    Posted: 12 November 2013

  6. Strange behavior, often transient

    Sometimes there can be unusual behavior in the tool. If something isn't working (especially if it used to work), try opening a new window without cookies, e.g., a "private window" in Firefox, or an "incognito window" in Chrome) and start the tool there. This usually resolves most of the odd behavior.

    Posted: 6 December 2019

  7. Background monitor email notification

    When you send something to the background monitor, it always gives you the choice of sending email to you when the job is done. However, it only actually sends you email for packaging files, not catalog search results.

    Posted: 12 November 2013