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1601. Database Applications
... Previous: Data Archives . ... Dynamic Dynamic Queries (DDQ) . ... Access to Data Sources and the ESO SkyCat Tool . ... A Java Interface For SkyView . ... Java, Image Browsing, and the NCSA Astronomy Digital Image Library . ... QDB: An IDL-Based Interface to LASCO Databases . ... Astronomical Information Discovery and Access: Design and Implementation of the ADS Bibliographic Services . A. Accomazzi, G. Eichhorn, M. J. Kurtz, C. S. Grant, and S. S. Murray . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/database.html -- 3.5 Кб -- 23.06.1998
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1602. The Portable-CGS4DR Graphical User Interface
... Previous: An ExpectTk/Perl Graphical User Interface to the Revision Control System (RCS) . ... This paper describes the elements and style of the Portable-CGS4DR graphical user interface built around some extensions to Tcl and the Tk toolkit. ... Tcl (Ousterhout 1994) is an embeddable scripting language and Tk is a graphical user interface toolkit. ... It is these extensions that are the basis for the CGS4DR graphical user interface. ... Table: The Portable-CGS4DR Graphical User Interface Style. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/dalyp.html -- 10.3 Кб -- 23.06.1998
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1603. The Design and Implementation of Synthesis Calibration and Imaging in AIPS++
... Calibration of and imaging from data measured by synthesis arrays is accomplished in AIPS++ using a very general formulation of interferometry due to Hamaker, Bregman, & Sault (1996). ... We describe the design, the design process, and some details of the implementation. ... This difficulty is of course one of the motivations for the AIPS++ Project, in which object-oriented techniques have been adopted with the goal of simplifying development and maintenance of processing algorithms. ... calibrater ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/cornwellt.html -- 24.0 Кб -- 23.06.1998
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1604. The ROSAT RESULTS ARCHIVE: Tools and Methods
... The ROSAT Results Archive (RRA) is a publicly accessible collection of source lists, images, spectra, lightcurves and counting rates derived from pointed-phase observations of the ROSAT X-ray satellite observatory. ... This paper discusses the methods and tools used to screen ROSAT source results, and discusses ways in which the data will eventually be made accessible to the general astronomical community. ... Each field and source gets assigned a set of quality flags by these scripts: . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/corcoranm.html -- 11.6 Кб -- 23.06.1998
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1605. ASC Data Analysis Architecture
Next: Implementation Design of the ASC Data Model . ... The AXAF Science Center (ASC) is using an ``open architecture'' approach to develop its data analysis environment. The system is a loosely coupled environment consisting of several major applications: visualizer, browser, fitter/modeler, as well as the data analysis tool-box. The ASC Data Model and Interprocess Communications (IPC) provide the data interface between applications and tools. ... Figure: Data analysis environment. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/conroym.html -- 12.1 Кб -- 23.06.1998
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1606. A Graphical Field Extension for sky
... At Keck we use the graphical tool sky to plan observations and to control the telescope. ... The user controls the telescope by clicking on stars and an overlayed view of the instrument detectors. ... To point the telescope, the sky user selects a pointing origin with the mouse and then drags and rotates the instrument field until the desired orientation appears on the display. ... To point the telescope, the sky user specifies two points: a sky location and a detector location . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/conrada.html -- 14.1 Кб -- 23.06.1998
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1607. A Database-driven Cache Model for the DADS Optical Disk Archive
... Up: Data Archives . ... The Data Archive and Distribution System (DADS) manages the Hubble Data Archive (HDA), a WORM Optical Disk Archive which contains over two terabytes of Hubble Space Telescope data. ... We describe a system which uses the database request logs as input to a flexible cache model. ... The Cache Model consists of three major components. ... The model provides the basis for an operational cache index since it uses the same data as DADS uses to obtain datasets from optical disks. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/comeaut.html -- 13.3 Кб -- 23.06.1998
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1608. Fitting and Modeling in the ASC Data Analysis Environment
... These Proceedings were prepared in nearly the same manner as the ADASS IV volume (ASP Conference Series, Volume 77), as a single LaTeX document using a style based on the ASP conference style. ... The ADASS V volume (ASP Conference Series, Volume 101), edited by George Jacoby and Jeannette Barnes, contained links to the NASA Astrophysics Data System for as many of the references as possible-we have tried to do the same. ... Previous: Fitting and Modeling in the ASC Data Analysis Environment . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/colophon.html -- 5.0 Кб -- 23.06.1998
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1609. Practical Applications of a Relational Database of FITS Keywords
... Up: FITS-Flexible Image Transport System . ... We have therefore constructed a relational database schema which describes FITS keywords, and have implemented it using Sybase. ... This generalization led swiftly to the use of the ``Memes'' database to document itself, since the fields (columns) of a database table are memes with a large subset of the attributes of a FITS keyword (such as name, datatype, semantics, etc.) ... There are many practical applications for these abilities (see Table 1). ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/clarked.html -- 12.0 Кб -- 23.06.1998
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1610. Imaging by an Optimizing Method
... Up: Algorithms . ... The imaging problem can be described as an optimizing problem in mathematics. ... Computer simulations of rotating modulation collimator imaging show that the quality of images from this method is better than that from the traditional cross-correlation method. ... The imaging problem is: . ... The results show that this algorithm can be used in the imaging problem and usually results in a better image than that obtained from a traditional method such as cross-correlation. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/cheny.html -- 10.6 Кб -- 23.06.1998
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1611. A Distributed System for ``Phase II'' Proposal Preparation
... Up: Proposal Processing . ... ESO is prototyping a distributed ``Phase II'' system that will allow astronomers to prepare their observations at their home institutions, while maintaining a central repository for all observation data. ... ESO is developing a Phase II Proposal Preparation system (P2PP) to collect detailed scientific programme descriptions, in the form of observation blocks (OB). ... ESO's Phase II Proposal Preparation system is an integral part of the VLT Data Flow System (DFS). ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/chavana.html -- 11.1 Кб -- 23.06.1998
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1612. Near-IR Imaging of Star-forming Regions with IRAF
... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/chans2.html -- 7.4 Кб -- 23.06.1998
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1613. A Method for Obtaining Reliable IRAS-LRS Data via the Groningen IRAS Server
... A method for processing IRAS-LRS data via the Groningen IRAS server is presented. ... Using the GIPSY software, we are able to obtain and to select reliable LRS spectra from the IRAS database. ... Raw IRAS data in GIPSY are stored as 4-D data sets (cf. ... The IRAS data were obtained using the IRAS data base server of the Space Research Organisation of the Netherlands and the Dutch Expertise Centre for Astronomical Data Processing funded by the Netherlands Organisation for Scientific Research. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/chans1.html -- 12.8 Кб -- 23.06.1998
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1614. Error and Bias in the STSDAS fitting Package
... The fitting package in STSDAS (Space Telescope Science Data Analysis System) relies on two basic techniques (one linear and one non-linear) for fitting functions to data. ... Results show that both methods may generate biased coefficients (at the ~few percent level), and over or under-estimate error bars (at the ~10 percent level), in particular from low signal-to-noise data. ... Function coefficient errors are computed directly from the covariance matrix. ... Abscissa is signal-to-noise. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/buskoi.html -- 9.9 Кб -- 23.06.1998
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1615. NICMOS Calibration Pipeline: Processing Associations of Exposures
... The processing of these associated images presents new challenges to the HST data processing pipelines, which heretofore operated only on single images. ... Stage 1 (CALNICA) calibrates individual exposures without information from other members of the association. ... Stage 2 of calibration (CALNICB) only operates on associated images that have previously gone through CALNICA processing, and creates combined images for each distinct (non-overlapping) pointing within the association. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/bushouseh.html -- 13.2 Кб -- 23.06.1998
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1616. POW: A Tcl/Tk Plotting and Image Display Interface Tool for GUIs
... We present a new Tcl/Tk based GUI interface tool which features plotting of curve and image data and allows for user input via return of regions or specific cursor positions. ... Curves and Images may then be combined to form a displayed Graph. ... With the development of several GUI based tools for High Energy Astrophysics at the HEASARC, we found a need for a interface tool that supports combined curve plotting and image display in a native Tcl/Tk environment. POW is our answer. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/brownl.html -- 11.0 Кб -- 23.06.1998
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1617. Filtering KPNO LaTeX Observing Proposals with Perl
... Up: Proposal Processing . ... An automated observing proposal processing system has been in use at KPNO during the past three years. ... Observer and proposal information fields in these files are well-marked with LaTeX tags, thus allowing automated extraction and importation to observatory databases. ... The Kitt Peak observing proposal handling system (Bell et al. 1996) is an automated system for distributing, receiving, and processing LaTeX observing forms and associated PostScript figures. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/belld.html -- 13.0 Кб -- 23.06.1998
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1618. Calibration and Performance Control for the VLT Instrumentation
Next: The ESO VLT CCD Detectors Software . ... Up: Instrument-Specific Software . ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pipeline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ... Quality Control Pipeline provides quality assessment for instrument performance data and observing conditions, and tests the results of the Reduction Pipeline. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/ballesterp.html -- 9.3 Кб -- 23.06.1998
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1619. AXAF
... ASC Data Analysis Architecture . M. Conroy, W. Joye, J. Herrero, S. Doe, and A. Mistry . Implementation Design of the ASC Data Model . J. Herrero, O. Oberdorf, M. Conroy, and J. McDowell . ... H. He, J. McDowell, and M. Conroy . Simulated AXAF Observations with MARX . ... Modeling AXAF Obstructions with the Generalized Aperture Program. ... Fitting and Modeling in the ASC Data Analysis Environment . S. Doe, A. Siemiginowska, W. Joye, and J. McDowell . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/axaf.html -- 3.1 Кб -- 23.06.1998
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1620. Data Archives
... Remote Access to the Tycho Catalogue and the Tycho Photometric Annex . ... The LASCO Data Archive . ... The Evolution of the HST Archive . J. J. Travisano and J. G. Richon . Implementing a New Data Archive Paradigm to Face HST Increased Data Flow . ... Integrating the HST Guide Star Catalog into the NASA/IPAC Extragalactic Database: Initial Results . ... The ROSAT RESULTS ARCHIVE: Tools and Methods . ... A Database-driven Cache Model for the DADS Optical Disk Archive . ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/archives.html -- 4.1 Кб -- 23.06.1998
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