Author Archives: Tom

Amazon AWS access to SkyView blocked.

DOS, Amazon web services, performance Continue reading

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WISE and 2MASS move to HTTPS

Access to data at IRSA recently has moved to requiring HTTPS URLs. This has broken SkyView’s access to the WISE and 2MASS surveys. We have just updated the URLs in the current version of SkyView to re-enable access to these … Continue reading

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Recent Heavy SkyView Usage

For the past several weeks there has been very intense usage of SkyView by a small number of users which has degraded responsiveness for other users. Most of the requests seem to be coming from virtual machines using Amazon Web … Continue reading

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SkyView V3.4.0: Handling Binary VOTables in SIAP data

Access to the TGSS ADR1 survey has taken a bit of a hit in the past couple of weeks. The TGSS data is served remotely by SkyView: we provide a resampling proxy to the underlying archive. As discussed in our … Continue reading

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TGSS issue

A couple of users noticed that requests for data from the TGSS ADR1 survey were not working. We’ve tracked this down to a change in the URLs used at the archive in the Netherlands used to store the TGSS data. … Continue reading

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SkyView V3.3.4: GLEAM Survey and new features

SkyView V3.3.4 has just been released. The new version includes a set of maps from the GaLactic and Extragalactic All-sky MWA Survey (GLEAM). The GLEAM survey was taken at the Murchison Widefield Array (MWA) and covers most of the sky … Continue reading

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SkyView V3.3.2: Links to Mosaicking Inputs

Version 3.3.2 of SkyView has been released with two significant changes: updated memory limits, and links to data inputs. The parameters used to set the heap size limits for SkyView web requests have been updated so that users will generally … Continue reading

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SkyView V3.3.1: Swift UVOT, UltraVista and CFHT HiPS data

We are about to release SkyView version 3.3.1.  This new version includes extended support for HiPS data and has many new surveys.  The primary new datasets are counts, intensity and exposure maps for the Swift UVOT instrument in seven filters.  … Continue reading

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SkyView v3.3.0: Swift XRT surveys

Versions 3.3.0 of SkyView was released today.  This includes an all-sky mosaic of the Swift XRT observations.  Over 129,000 XRT observations were combined to give coverage of just under 6% of the sky.  A set of three surveys were produced: … Continue reading

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SkyView and HiPS

Next week we’ll be releasing version 3.3.0 of SkyView.  The big change from the user perspective will be the new Swift XRT combined image.  This is similar in spirit to the venerable PSPC surveys — we’ve added all of the … Continue reading

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