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1321. Remote Observing With Java
... Up: Telescope and Instrument Control Systems . ... The software is based on a client/server architecture and provides remote access for controlling, monitoring and troubleshooting the array. ... The server software is developed in C++ and runs on a UNIX host machine. ... This computer demonstration consists of remote observing with the Caltech Millimeter Array located at Owens Valley in California to show the feasibility and features of this software package. ... Figure 2: Array Status window. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/shuklah/ -- 8.3 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/shuklah/shuklah.html -- 8.3 Кб -- 16.07.1999
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1322. CICADA - Configurable Instrument Control and Data Acquisition
... Up: Telescope and Instrument Control Systems . ... CICADA (Young et al. 1997) is a multi-process, distributed application for the control of astronomical data acquisition systems. ... CICADA can be used to dynamically configure support for astronomical instruments that can be made up of multiple cameras and multiple instrument controllers. ... An example of a multiple part instrument configuration - a wide field imager (WFI) - is described here. ... Figure 1: The Controller Configuration GUI. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/youngpj/ -- 13.8 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/youngpj/youngpj.html -- 13.8 Кб -- 16.07.1999
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1323. A Search and Discovery Tool - AMASE
Next: Web-Based Tools For Exploration of ADC Data Holdings and NASA Data Archives . Up: Archiving and Information Services . ... The Astrophysics Multispectral Archive Search Engine (AMASE) is a metadatabase prototype built using object-oriented database methodology which allows mission data to be searched easily using scientific parameters. ... AMASE uses object-oriented database (OODB) techniques to ``merge'' astronomical data from heterogeneous sources. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/cheungcy/ -- 16.4 Кб -- 16.07.1999
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1324. Numerical Observatory: a Web Site for the Retrieval, Analysis, and
... We have developed a user-friendly, highly interactive, ``Cluster Archive'' web site ( http://sca.ncsa.uiuc.edu/ ) that permits users to retrieve, analyze, and visualize archived data from extremely high-resolution numerical simulations of more than 100 X-ray clusters, spanning several orders of magnitude in luminosity and mass. ... To meet this need, we have developed a ``numerical observatory'' in a workbench style system that allows users to interact with archived simulation data over the Web. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/dauesge/ -- 13.4 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/dauesge/dauesge.html -- 13.4 Кб -- 16.07.1999
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1325. Computational Technology for Bayesian Inference
... One of the most important practical differences between the Bayesian approach to statistical inference and the more traditional frequentist approach is the nature of the sums and integrals required to implement each approach. In both approaches, the sampling distribution for the data (i.e., the likelihood function) plays a key role; but frequentist calculations integrate the sampling distribution over the sample space, whereas Bayesian calculations integrate it over hypothesis (parameter) space. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/loredotj/ -- 48.8 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/loredotj/loredotj.html -- 48.8 Кб -- 16.07.1999
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1326. ESO/CDS Data-mining Tool Development Project
... ESO and CDS are currently developing the data-mining tools which will allow users to access and combine the information stored in the forms of catalogs at CDS, and catalogs and data at ESO. CDS counts with about 5000 tables handled by the VizieR system (the data-mine, based on Sybase), including catalogs which appeared recently in journal articles. ... Using data extracted from a Data-Mine (CDS, ESO, or somewhere else). ... which provides connection between the user, CDS, and ESO facilities. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/ortizpf/ -- 15.2 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/ortizpf/ortizpf.html -- 15.2 Кб -- 16.07.1999
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1327. The Prospects of DVD-R for Storing Astronomical Archive Data
... Up: Archiving and Information Services . ... 172, Astronomical Data Analysis Software and Systems VIII, eds. D. M. Mehringer, R. L. Plante, & D. A. Roberts (San Francisco: ASP), 269 . ... This paper reviews the current situation regarding DVDs and assesses the suitability and maturity of the technology for astronomical data archives. ... If it would turn out that DVD-R technology does not have a future, we will have to find an alternative route store our data. ... Data Management Division . ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/pirenneb/ -- 16.6 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/pirenneb/pirenneb.html -- 16.6 Кб -- 16.07.1999
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1328. Status and Future Plans for Parallelization of AIPS++
... During the past year, the parallel group of AIPS++ has been actively incorporating parallel processing into the most computationally intensive aspects of AIPS++. We report here the status of the AIPS++ parallelization effort and plans for future development. ... The goal of the AIPS++ parallelization project is to provide an easy to use, high performance processing system that allows astronomers to processes large datasets. ... Currently the parallel system shows good scaling up to 16 processors. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/robertsda/ -- 11.6 Кб -- 16.07.1999
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1329. Real-Time Linux Driving a Spectrometer
... We have been upgrading the software front-end to WASP (Wideband Autocorrelating SPectrometer, operating from 800 to 4000 MHz) from Lynx-OS to Real-Time Linux and will discuss Real-Time software aspects. We are using a standard parallel ``PIO'' card to receive data from the spectrometer and standard GPIB interfaces that drive a frequency synthesizer for bandpass calibration. WASP and its front-end computer are fully mobile and can be taken to any suitable radio telescope. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/teubenp/ -- 11.5 Кб -- 16.07.1999
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1330. Automatic Detection of Linear Features in Astronomical Images
... A new IRAF task has been developed that automatically identifies linear (line-like) features in an image or set of images. ... In order to automatically detect linear features, the first step is to select pixels in the image (Fig. 1 , left panel) that fall within a given data value range. ... Another aspect of extended linear features is that the image space pixels that describe them are in some way adjacent to one another and have a minimum and maximum length. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/cheselkam/ -- 12.9 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/cheselkam/cheselkam.html -- 12.9 Кб -- 16.07.1999
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1331. The Gemini Data Handling System: A Case History
... The Gemini Data Handling System, developed by the Canadian Astronomy Data Centre for the Gemini 8m Telescopes Project, provides the data handling infrastructure for the Observatory Control System and the instrument control systems. ... The Gemini Data Handling System (DHS), developed by the Canadian Astronomy Data Centre (CADC) for the Gemini telescopes, provides the data handling infrastructure for the Observatory Control System (OCS) and the instrument control systems. ... Solid design. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/gaudetsj/ -- 15.0 Кб -- 16.07.1999
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1332. The Scientific Uplink System for SIRTF, a Design Study
... 172, Astronomical Data Analysis Software and Systems VIII, eds. D. M. Mehringer, R. L. Plante, & D. A. Roberts (San Francisco: ASP), 107 . ... As such its ground segment design is driven by the requirement to provide strong support for the entire astronomical community in the form of Guaranteed Time, Legacy Program and Open Time Observers. In this contribution we present the current status of the software design of the Scientific Uplink Software for SIRTF . ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/heinrichsenih/ -- 17.7 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/heinrichsenih/heinrichsenih.html -- 17.7 Кб -- 16.07.1999
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1333. The STSDAS Table Selector Library
... To the user and the programmer such a subset appears to have fewer rows and/or columns than the entire table. The user defines a subset by appending expressions to the table name. ... Internally, the procedure that evaluates the expressions calls two interpreters: one to evaluate the row selector expression, and another to evaluate the column selector. ... The library implements a set of procedures that allows the user to select a subset of rows or columns from Stsdas tables. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/hodgepe/ -- 15.4 Кб -- 16.07.1999
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1334. Background Fluctuation Analysis from the Multiscale Entropy
Next: A New Entropy Measure Based on Multiple Resolution and Noise Modeling . ... The entropy measurement has been proposed for image restoration several years ago in astronomy. ... The multiscale entropy has the advantage to introduce a noise modeling, and the concept of information at different level of resolution. ... We show in this paper that it can also be used for background fluctuations analysis. ... Five simulated images were created by adding 400, 200, 100, 50, 0 sources to a noisy image. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/rgastaud/ -- 17.6 Кб -- 16.07.1999
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1335. Data Structure and Software of the UCAC-S Project
... Zacharias, N. & Zacharias, M. I. 1999, in ASP Conf. ... The USNO CCD Astrograph Catalog South (UCAC-S) project is a high precision astrometric survey of the entire southern hemisphere for the 7 - 16 magnitude range, aiming at an accuracy of 20 mas for 8-14 m stars. ... The ACT (Urban et al. 1998) and the Hipparcos and Tycho Catalogues (ESA 1997) are used as reference (UCAC-R), supplemented by an extragalactic link program carried out in parallel mainly at the Cerro Tololo (CTIO) 0.9-meter telescope....
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Ссылки http://www.adass.org/adass/proceedings/adass98/zachariasn/ -- 11.3 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/zachariasn/zachariasn.html -- 11.3 Кб -- 16.07.1999
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1336. Extracting Information from Text Data Bases
... The problem of computer assisted literature search is often misstated as the attempt to find, in a repository of electronic literature, a paper which, according to title and keywords, contains the desired information. ... To avoid these problems it is necessary to categorize and classify the documents in the text data base using the full text. ... Input patterns presented to the neural network will propagate selectively through it, depending on the different weights of the different connections. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/albrechtr/ -- 17.1 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/albrechtr/albrechtr.html -- 17.1 Кб -- 16.07.1999
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1337. PyFITS, a FITS Module for Python
... PyFITS is a module for reading, writing, and manipulating FITS files using the interactive, object-oriented language, Python. The module is composed of two files: a generic low-level C library for manipulating multidimensional arrays of C-type structures and a high-level Python module. ... PyFITS is python module for reading, writing, and manipulating FITS files. ... Since this module is fully integrated into Python, it allows fast and efficient access to a binary data file using array notation. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/barrettpa/ -- 14.1 Кб -- 16.07.1999
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1338. Pipeline Processing of Data in the VLT Era
Next: The Client Server Design of the Gemini Data Handling System . Up: Data Pipelines . ... The VLT Data Flow System pipeline and quality control subsystem provides a general infrastructure for standard reduction and quality assessment of data obtained at the VLT facility. ... re-processing of data from the VLT Science Archive. ... Each instrument must define a unique classification of all frames used by the pipeline including raw frames, calibration data and products generated. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/grosbolp/ -- 13.5 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/grosbolp/grosbolp.html -- 13.5 Кб -- 16.07.1999
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[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/grosbolp/grosbolp.html -- 13.5 Кб -- 16.07.1999
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1339. Study to Install an Information System at the University of the Istanbul
... Up: Archiving and Information Services . ... University of Istanbul, Faculty of Science, Astronomy and Space Sciences Department, 34452 University, Istanbul, Turkey . University of Istanbul Astronomy and Space Sciences Department's current computing system which no longer adequately meets the needs of its users--astronomers--has to be re-designed to operate like an Information System. ... The Astronomy and Space Sciences Department is now located on the University of Istanbul Campus at Beyazit. ...
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Ссылки http://www.adass.org/adass/proceedings/adass98/gulsecen/ -- 17.0 Кб -- 16.07.1999
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1340. The Pixon Method of Image Reconstruction
... The Pixon method is a high-performance, nonlinear image reconstruction method that provides statistically unbiased photometry and robust rejection of spurious sources. ... The next sections discuss image reconstruction in general (? 2. ), describe the Pixon method (? 3. ), and give some examples (? ... Where the kernel is a delta function, the Pixon element spans one pixel, and the Pixon method reduces to a nonnegative least-squares fit, with the noise-free data model smooth on the scale of the PSF....
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Ссылки http://www.adass.org/adass/proceedings/adass98/puetterrc/ -- 38.9 Кб -- 16.07.1999
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/puetterrc/puetterrc.html -- 38.9 Кб -- 16.07.1999
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[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass98/puetterrc/puetterrc.html -- 38.9 Кб -- 16.07.1999
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