ARI's Gaia Services

All last new events (e.g. new feature, new data, bug correction) in the ARI's Gaia Services.

27th February 2018 ADQL auto-completion
On the web interface of TAP, the ADQL editor has been enhanced with an auto-completion mechanism.

The ADQL editor on the Web interface of the TAP service of ARI has been enhanced with an auto-completion mechanism. It is able to automatically complete ADQL keywords, ADQL functions, schema/table/column names as well as additional functions (i.e. UDF = User Defined Functions) provided by ARI. You can trigger it with the common keys combination: Ctrl + Space.

13th December 2017 Online time-series visualization
It is now possible to visualize the time-series of matching sources on the Single Source Search service.

As you may know, Gaia DR1 provides time-series for variable sources, although it concerns only very few sources (i.e. all identified as part of Cepheids and RR-Lyrae, so: 3,194 sources in DR1). It is however expected to have much more time-series in Gaia DR2 :)

So, in preparation for DR2+, a new feature is now available on the Single Source Search page: a simple interactive time-series visualizer. It does not aim to do advance manipulation but only to give good preview of the time-series of the sources you are interested in.

This plot appears automatically when searching by object name, position or ID ONLY IF any time-serie is available for all the matching sources.

With this tool, you can:

25th July 2017 Cone Search Estimation
The size of a cone search query can now be quickly estimated.

On the web page of the Cone Search Service, an estimation of the query result size (in sources and bytes) is now proposed when setting the cone parameters in the form.

The first number gives the maximum number of sources that can be returned by the Cone Search query. The second value is the estimated size of the resulting VOTable based on the maximum number of sources.

The color of the estimated size may change: orange for GiB, red for TiB and grey otherwise.

Besides, if the estimated size is bigger than the limit of the Cone Search service, then a red OVERFLOW label is displayed. Thus, you will know that if you run the Cone Search query, the result will probably be truncated. Then, you should probably choose a smaller radius or decrease the verbosity flag (i.e. the number of columns you want to get).

13th December 2016 TAP examples with STILTS scripts
A STILTS script is now available for all query examples provided along the TAP service.

From the Gaia DR1, the ARI's TAP service has a special resource providing a list of query examples. This list is visible and usable in TOPCAT as described in the help page: "How to get ADQL examples in TOPCAT?" .

TOPCAT is developed together with a derived command line tool of the same author: STILTS . Thanks to this tool, you can easily reproduce queries, crossmatches, plots and anything you do in TOPCAT with just a single script file.

So, now, all examples provided by the TAP service are now associated with a STILTS script that you can download, and execute in order to easily and quickly reproduce the example and its figure(s). Do not hesitate to take inspiration from these scripts to fulfill your own use-cases.

TAP Examples

14th September 2016 Gaia DR1 online!
The first Gaia Data Release is now available on ARI's Gaia Services.

The full Gaia DR1 is now available on ARI's Gaia Services.

On this website you can get all information about the content of this release. All of the eight tables are described in details on  Data & Statistics. In addition of a detailed textual description, you will find statistics and sky-maps for all numerical columns of all available tables.

To query these data, the ARI provides three services:

26th August 2016 TAP Upload enabled in the Web interface
A new feature in the Web interface for TAP queries.

The TAP Web interface has now a new feature: the ability to upload one or several table when submitting an ADQL query.

However, there are some limitations you should be aware of:

  • The TAP protocol supports ONLY the VOTable format for uploaded tables. The Web form has then the same constraint.
  • When selecting a file, you will be asked a table name. This table name must start with a latin letter ({aA-zZ}) and may be followed only by an underscore (_), another latin letter ({aA-zZ}) or a digit ({0-9}).
  • There is no limit on the number of tables you can submit. However, you are limited on the size of the whole requests (2MB) and on the total number of rows (see the Capabilities of the TAP service).
9th August 2016 Rehearsal Gaia data ready for testing
The rehearsal Gaia data are simulated data aiming to help testing Gaia data access services before the real Gaia data release.

The rehearsal Gaia data for the first release are now accessible through the ARI's Gaia services. These data are simulated just for test purpose. Thus, you can see how services provided by ARI work and how you could use them for your own scientific purpose.