Debian Astro Virtual Observatory packages

ADQL is a SQL-like language which includes astronomical facilities to query a database. This language has been defined by the IVOA in the Recommendation of 30 Oct 2008 (Version 2.0) and is mainly used in the Table Access Protocol (TAP).

Functionalities of the package:

• Parse: read ADQL queries in text and transform them into a Java object (actually, a syntactic tree).
• Manipulate: the generated object can be manipulated so than modifying the original query.
• Translate: an interface and some implementations lets translating SQL into other languages like SQL.

• Debian Astro Team
• Phil Wyett

• 1.4-1 (buster)
• 2.0~beta+ds-3 (sid)
• 2.0~beta+ds-3 (trixie)
• 1.5-2 (bookworm)
• 1.5-1 (bullseye)

• 21 regular users
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This package sets up a ready-to use VO data center using GAVO's Data Center Helper Suite (DaCHS), in particular by configuring a postgres database backend. The DaCHS server lets data center operators ingest their astronomical data into structured repositories and publish those to the Virtual Observatory.

• Debian Astronomy Team
• Markus Demleitner

• 2.10+dfsg-1 (sid)
• 2.3+dfsg-3 (bullseye)
• 2.9.1+dfsg-1 (trixie)
• 2.7+dfsg-2 (bookworm)
• 2.10.2 (upstream)

• 20 regular users
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The STIL Tool Set is a set of command-line tools based on STIL, the Starlink Tables Infrastructure Library. It deals with the processing of tabular data; the package has been designed for, but is not restricted to, astronomical tables such as object catalogues. Some of the tools are generic and can work with multiple formats (including FITS, VOTable, CDF, CSV, SQL and ASCII), and others are specific to the VOTable format. In some ways, STILTS forms the command-line counterpart of the GUI table analysis tool TOPCAT. The package is robust, fully documented, and designed for efficiency, especially with very large datasets.

This package contains the Jython package.

• Taylor, M. B.: STILTS - A Package for Command-Line Processing of Tabular Data. Astronomical Data Analysis Software and Systems XV 351:666-670 (2006) (eprint)

• Debian Astro Team
• Ole Streicher

• 3.4.7-4 (bookworm)
• 3.4-2 (bullseye)
• 3.5-2 (sid)
• 3.5-2 (trixie)
• 3.1.5-1 (buster)

• 66 total installations (of 247424 submissions)

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SAVOT (Simple Access to VOTable) is a library which can be used to access VOTables. The VOTable format developed within the framework of the Virtual Observatory (VO) is an XML standard for the interchange of data represented as a set of tables. VOTable is derived from the "Astrores" format, itself modeled on the "FITS Table" format.

SAVOT aims at providing Java VOTable parsers based on different parsing models and at providing small Java VOTable parsers which can be included in applets.

• Debian Astro Team
• Ole Streicher

• 4.0.0-2 (bookworm)
• 4.0.0-2 (buster)
• 4.0.0-2 (bullseye)
• 4.0.0-2 (trixie)
• 4.0.0-2 (sid)
• 4.0.0-1 (stretch)

• 88 total installations (of 247424 submissions)

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'pymoctool' is a command-line Python-based library for manipulating Multi-Order Coverage maps (MOCs).

Frequently astronomical survey catalogues or images are sparse and cover only a small part of the sky. In a Multi-Order Coverage map the extent of data in a particular dataset is cached as a pre-calculated mask image. The hierarchical nature enables fast boolean operations in image space, without needing to perform complex geometrical calculations. Services such as VizieR generally offer the MOC masks, allowing a faster experience in graphical applications such as Aladin, or for researchers quickly needing to locate which datasets may contain overlapping coverage.

The MOC mask image itself is tessellated and stored in NASA HealPix format, encoded inside a FITS image container. Using the HealPix (Hierarchical Equal Area isoLatitude Pixelization) tessellation method ensures that more precision (pixels) in the mask are available when describing complex shapes such as approximating survey or polygon edges, while only needing to store a single big cell/pixel when an coverage is either completely inside, or outside of the mask. Catalogues can be rendered on the mask as circles.

It is written in Python and uses the PyMOC library.

• Debian Astro Team
• Ole Streicher

• 0.5.2-2 (trixie)
• 0.5.2-2 (sid)
• 0.4.2-1 (stretch)
• 0.5.0-4 (buster)
• 0.5.0-5 (bullseye)
• 0.5.0-5 (bookworm)

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This library handles space-time information within the Virtual Observatory (VO) according to the IVOA (International Virtual Observatory Alliance) STC recommendation.

The VO knows two implementations for STC metadata, one in XML called STC-X and a linear string implementation called STC-S. This library provides support for the generating and parsing of STC-S expressions and STC-X documents. Moreover, it contains various helper functions for the transformation between Earth coordinate systems, for dealing with sky coordinates, for time parsing and time conversions, and for the definition and conversion of units in STC.

• Debian Astronomy Team
• Markus Demleitner

• 2.3+dfsg-3 (bullseye)
• 2.10+dfsg-1 (sid)
• 2.7+dfsg-2 (bookworm)
• 2.9.1+dfsg-1 (trixie)
• 2.10.2 (upstream)

• 26 regular users
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PyMOC provides a Python compatible library for handling MOCs.

Frequently astronomical survey catalogues or images are sparse and cover only a small part of the sky. In a Multi-Order Coverage map the extent of data in a particular dataset is cached as a pre-calculated mask image. The hierarchical nature enables fast boolean operations in image space, without needing to perform complex geometrical calculations. Services such as VizieR generally offer the MOC masks, allowing a faster experience in graphical applications such as Aladin, or for researchers quickly needing to locate which datasets may contain overlapping coverage.

The MOC mask image itself is tessellated and stored in NASA HealPix format, encoded inside a FITS image container. Using the HealPix (Hierarchical Equal Area isoLatitude Pixelization) tessellation method ensures that more precision (pixels) in the mask are available when describing complex shapes such as approximating survey or polygon edges, while only needing to store a single big cell/pixel when an coverage is either completely inside, or outside of the mask. Catalogues can be rendered on the mask as circles.

• Debian Astro Team
• Ole Streicher

• 0.4.2-1 (stretch)
• 0.5.2-2 (sid)
• 0.5.2-2 (trixie)
• 0.5.0-5 (bookworm)
• 0.5.0-5 (bullseye)
• 0.5.0-4 (buster)

• 76 regular users
• 14 recent
• 153 total installations (of 247424 submissions)

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SkyView is a "virtual" observatory dynamically generating images of the sky in different wavelength regimes from a static image database. SkyView is intended as a quick look facility to see the heavens.

This package includes the executable.

• T. McGlynn and K. Scollick: SkyView. Astronomical Data Analysis Software and Systems III 61:34 - 37 (1994) (eprint)

• Debian Astro Team
• Ole Streicher

• 3.5.7+repack-3 (sid)
• 3.5.7+repack-3 (trixie)
• 3.4.2+repack-2 (buster)
• 3.5.6+repack-1 (bookworm)
• 3.5.5+repack-2 (bullseye)

• 8 regular users
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TOPCAT is an interactive graphical viewer and editor for tabular data. Its aim is to provide most of the facilities that astronomers need for analysis and manipulation of source catalogues and other tables, though it can be used for non-astronomical data as well. It understands a number of different astronomically important formats (including FITS and VOTable) and more formats can be added.

This package contains the executable.

• Taylor, M. B.: TOPCAT & STIL: Starlink Table/VOTable Processing Software. Astronomical Data Analysis Software and Systems XIV 347:29-33 (2005) (eprint)

• Debian Astro Team
• Ole Streicher

• 4.10-1 (trixie)
• 4.8.7-3 (bookworm)
• 4.8-2 (bullseye)
• 4.10-1 (sid)
• 4.6.2-1 (buster)

• 13 regular users
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CASSIS (Centre d'Analyse Scientifique de Spectres Infrarouges et Submillimetriques), is suited for broad-band spectral surveys to speed up the scientific analysis of high spectral resolution observations. It uses a local spectroscopic database made of the two molecular spectroscopic databases JPL and CDMS, as well as the atomic spectroscopic database NIST. Its tools include a LTE model and the RADEX model connected to the LAMDA molecular collisional database. CASSIS can build a line list fitting the various transitions of a given species and to directly produce rotational diagrams from these lists. CASSIS is fully integrated intoHIPE, the Herschel Interactive Processing Environment, as a plug-in.

This is the end user tool.

• E. Caux, S. Bottinelli, C. Vastel and J. M. Glorian: CASSIS, a software package to analyse high spectral resolution observations. IAU Symposium :120 (2011)

• Debian Astro Maintainers
• Ole Streicher

• 5.1.1-1 (VCS)

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Splat-VO is an desktop client for viewing and analysis of Virtual Observatory (VO) spectral data. This graphical tool can display, analyse, compare and modify already extracted spectra stored in FITS, TEXT, and NDF/NDX formats. It can also interact with the Virtual Observatory registery and data-centres to dynamically query and download data for a particular section of the sky on-demand.

Splat-VO can work in multiple coordinate systems and can plot and overlay multiple spectra at the same time. Plots are displayed in a visually rich format. Analysis can be performed by selecting and zooming multiple, and fitting to emission and absorption lines.

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