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1641. The New User Interface for the OVRO Millimeter Array
... A new user interface for the OVRO Millimeter Array is in the early phase of implementation. ... Caltech's six element millimeter wave aperture synthesis array at the Owens Valley Radio Observatory (OVRO) is in the process of implementing a new user interface to facilitate observing and troubleshooting of an increasingly complex instrument. ... The design utilizes a client server architecture with a Java client providing the user interface on an arbitrary computer on the Internet. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/scotts.html -- 12.3 Кб -- 15.05.1998
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1642. GIM2D: An IRAF package for the Quantitative Morphology Analysis of Distant
... This paper describes the capabilities of GIM2D, an IRAF package for the quantitative morphology analysis of distant galaxies. GIM2D automatically decomposes all the objects on an input image as the sum of a S?rsic profile and an exponential profile. ... GIM2D (Galaxy IMage 2D) is an IRAF package written to perform detailed bulge/disk decompositions of low signal-to-noise images of distant galaxies. ... The segmentation image is used by GIM2D to deblend galaxy images. ... Create a residual image. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/sersic.html -- 15.7 Кб -- 15.05.1998
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1643. Analysis Tools for Nebular Emission Lines
... Up: Data Analysis Applications . ... The nebular analysis package in STSDAS has been substantially enhanced, and now includes several new ions and diagnostics, as well as updated atomic data for all supported ions. ... The nebular analysis package is a set of applications within IRAF/STSDAS for computing physical parameters in emission line nebulae (such as electron density, N e , and temperature, T e ), as well as ionic abundances of several elements relative to ionized hydrogen. ... Diagnostic . ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/shawr1.html -- 18.0 Кб -- 15.05.1998
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1644. An IRAF Port of the New IUE Calibration Pipeline
... The calibration pipeline that was used for the IUE final archive, NEWSIPS, is being ported to IRAF. ... A new spectral image processing system (NEWSIPS) was constructed for a final, archival reprocessing of the IUE data archive. ... The ported pipeline will enable recalibration from the raw data or from certain intermediate stages, will allow for different choices of reference files, and will accommodate the use of more appropriate processing techniques at intermediate stages. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/shawr2.html -- 14.6 Кб -- 15.05.1998
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1645. Remote Observing with the Keck Telescope: . ATM Networks and Satellite Systems
... As a technical demonstration project for the NASA Advanced Communications Technology Satellite (ACTS), we have implemented remote observing on the 10-meter Keck II telescope on Mauna Kea from the Caltech campus in Pasadena. The data connection consists of ATM networks in Hawaii and California, running at OC-1 speeds (45 Mbit/sec), and high data rate (HDR) satellite antennae at JPL in Pasadena and Tripler Army Medical Center in Honolulu. ... These networks were connected via NASA's ACTS satellite. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/shopbellp.html -- 14.7 Кб -- 15.05.1998
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1646. Structure Detection in Low Intensity X-Ray Images using the Wavelet Transform
... In the context of assessing and characterizing structures in X-ray images, we compare different approaches. The intensity level is often very low and necessitates a special treatment of Poisson statistics. ... Finally, using a set of ROSAT HRI deep pointings, the presence of small-scale structures in the central regions of clusters of galaxies is investigated. ... Hence, WT has been used for clusters and subclusters analysis (Slezak et al. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/starckjl.html -- 16.2 Кб -- 15.05.1998
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1647. NICMOS Software: An Observation Case Study
... Calibration and analysis of this observation posed very interesting challenges for the authors, in particular dealing with an exciting new instrument whose on-orbit calibration was not yet well defined. ... Five mosaic positions were observed during five consecutive orbits as well as observations for dark and flat calibration. ... Darks and flats had to be created from contemporaneous reference observations and problems within the calibration process had to be resolved. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/stobiee.html -- 11.9 Кб -- 15.05.1998
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1648. The ISO Spectral Analysis Package ISAP
Next: News on the ISOPHOT Interactive Analysis PIA . Up: Data Analysis Applications . ... We briefly describe the ISO Spectral Analysis Package ISAP. ... ISAP is written in pure IDL. Its command line mode as well as the widget based graphical user interface (GUI) are designed to provide ISO observers with a convenient and powerful tool to cope with data of a very complex character and structure. ... The ISO Spectral Analysis Package, ISAP, plays an important role in ISO data analysis. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/sturme.html -- 13.1 Кб -- 15.05.1998
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1649. HST Keyword Dictionary
... STScI has undertaken a project to place all HST keyword information in one source, the keyword database, and to provide a mechanism for making this keyword information accessible to all HST users, the keyword dictionary, which is a WWW interface to the keyword database. ... Along with forming the headers for the science data, most keyword values are ingested into HST archive catalog fields where they are accessible for archive searches and data characterization. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/swaded.html -- 13.2 Кб -- 15.05.1998
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1650. Grid OCL : A Graphical Object Connecting Language
... 1 A post doctoral programmer at Cardiff who has been developing Grid OCL since January 1996. ... In this paper, we present an overview of the Grid OCL graphical object connecting language. ... Grid OCL (Object Connecting Language) is a graphical interactive multi-threaded environment allowing users to construct complex algorithms by creating an object-oriented block diagram of the analysis required. Figure 1: Grid OCL's ToolBox window. ... Figure 2: A snapshot of Grid OCL's programming window. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/taylori.html -- 12.2 Кб -- 15.05.1998
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1651. GUI-fying and Documenting your Shell Script
... We describe a simple method to annotate shell scripts and have a preprocessor extract a set of variables, present them to the user in a GUI (using Tcl/Tk) with context sensitive help, and run the script. ... When individual applications are (tightly) integrated into the scripting language, this offers very powerful scripts, fully graphical user interfaces and a result sometimes indistinguishable from applications. ... Here is an example header from a C-shell script with which Figure 1 was made. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/teubenp.html -- 10.5 Кб -- 15.05.1998
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1652. ADASS VII Electronic Proceedings
... Data Analysis Applications . ... Identification and Analysis of Binary Star Systems using Probability Theory . ... Constructing and Reducing Sets of HST Observations Using Accurate Spacecraft Pointing Information . ... The IRAF Mosaic Data Reduction Package . ... A Posteriori Guidance for Astronomical Images . ... ISO-SWS Data Analysis . ... Data Analysis with ISOCAM Interactive Analysis System -- Preparing for the Future . ... The VizieR System for Accessing Astronomical Data . ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/toc.html -- 24.4 Кб -- 15.05.1998
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1653. The Mosaic Data Capture Agent
... The Mosaic Data Capture Agent (DCA) plays a central role in connecting the raw data stream from the NOAO CCD Mosaic controller system to the rest of the data handling system (DHS). ... The major subsystems of the DCA at present are the message bus interface, an event loop and event handlers for processing message requests, a distributed shared object implementation, a keyword database system, the TCL interpreter, and a TCL-based keyword translation module. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/todyd1.html -- 15.6 Кб -- 15.05.1998
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1654. Message Bus and Distributed Object Technology
Next: Building Software from Heterogeneous Environments . ... The core technologies needed to achieve this flexibility are the message bus , distributed objects , and applications frameworks . ... The message bus is a facility used to bind, at runtime, distributed objects (program components) to construct applications. ... Message bus clients (e.g., components or services) can execute on any host computer connected to the message bus, allowing distributed applications to be easily constructed. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/todyd2.html -- 14.7 Кб -- 15.05.1998
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1655. The IRAF Mosaic Data Reduction Package
... The IRAF Mosaic Data Reduction Package, mscred , processes data from mosaics of CCDs such as the NOAO CCD Mosaic Camera . ... Most of the components of the original design (Valdes 1997a) for an IRAF Mosaic Data Reduction Package have been implemented in the first version of the mscred package. ... The raw data files are processed so that each image extension is flux and coordinate system calibrated. ... The mscred package supports a coordinate system that is quite accurate. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/valdesf.html -- 16.9 Кб -- 15.05.1998
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1656. An Optimal Data Loss Compression Technique for Remote Surface Multiwavelength
... Previous: Structure Detection in Low Intensity X-Ray Images using the Wavelet Transform Applied to Galaxy Cluster Cores Analysis . ... It also exploits the PCA's high generalizing ability to implement a simple learning algorithm for sequential compression of remote sensing imagery. ... Growing interest in lossy compression techniques for space-borne data acquisition is explained by the rapid progress in sensors, which combine high spatial resolution and fine spectral resolution. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/vasilyevs.html -- 14.6 Кб -- 15.05.1998
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1657. Automated Spectral Classification Using Neural Networks
Next: Methods for Structuring and Searching Very Large Catalogs . ... We have explored two automated classification methods: supervised classification using Artificial Neural Networks (ANN) and unsupervised classification using Self Organized Maps (SOM). These methods are used to classify IUE low-dispersion spectra of normal stars with spectral types ranging from O3 to G5. This paper describes the application of automated methods to the problem of the classification of stellar spectra. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/vieirae.html -- 9.9 Кб -- 15.05.1998
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1658. The INTEGRAL Science Data Centre
... INTEGRAL Science Data Centre, Chemin d'?cogia 16, CH-1290 Versoix, Switzerland . ... The INTEGRAL Science Data Centre, implemented by a consortium of scientific institutions, is the part of the ground segment which deals with the interface between the scientific community and the INTEGRAL data. ... This has led to the concept of the INTEGRAL Science Data Centre (ISDC). This centre is the interface between the INTEGRAL data and the users' community. ... 200 housekeeping records per instrument . ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/walterr.html -- 10.8 Кб -- 15.05.1998
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1659. Methodology of Time Delay Change Determination for Uneven Data Sets
... It was found in this way that the radio variations (5 MHz) followed the optical ones, but that the time delay was a linear function of time with the mean value being about 2370 days and with the rate of increase days/year. ... We take days/year as the test value. ... To show that the method has real abilities to determinate a value of of the time delay rate of increase in the light curves we again use Monte-Carlo simulation as it is explained in (1) and (2), but the actual value is 110 days/year. ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/oknyanskijv.html -- 17.5 Кб -- 15.05.1998
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1660. Accessing Astronomical Data over the WWW using dat OZ
Next: Distributed Searching of Astronomical Databases with Pizazz . Up: Archives and Information Services . ... The Department of Astronomy of the University of Chile hosts a number of astronomical databases created with dat OZ (Ortiz, 1997). ... Data can be retrieved by the users in a highly flexible way, from lists of user-selected quantities, to customized plots, including any additional multimedia information available for the database elements. ... Hipparcos Main Catalog ESA, (1997). ...
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Ссылки http://www.adass.org/adass/proceedings/adass97/ortizp.html -- 14.7 Кб -- 15.05.1998
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