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1981. http://www.adass.org/adass/proceedings/adass96/reprints/clarked.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. Practical Applications of a Relational Database of FITS Keywords De Clarke and S. L. Allen UCO/Lick Observatory, Kerr Hal l, UCSC, 1156 High Street, Santa Cruz, CA 95064 Abstract. ... 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, datatyp e, semantics, etc.) ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/clarked.pdf -- 138.2 Кб -- 14.01.1998
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1982. http://www.adass.org/adass/proceedings/adass96/reprints/cheny.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. Imaging by an Optimizing Method Y. Chen, T. P. Li, and M. Wu High Energy Astrophysics Lab, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, PRC, E-mail: cheny@astrosv1.ihep.ac.cn Abstract. The imaging problem can b e describ ed as an optimizing problem in mathematics. ... The Imaging by an Optimizing Method 181 Figure 2. a) The original ROSAT PSPC Crab nebula image. b) The image obtained from the AS algorithm. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/cheny.pdf -- 388.5 Кб -- 14.01.1998
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1983. http://www.adass.org/adass/proceedings/adass96/reprints/chavana.pdf
Astronomical Data Analysis Software and Systems VI ASP Conference Series, Vol. 125, 1997 Gareth Hunt and H. E. Payne, eds. A Distributed System for "Phase I I" Proposal Preparation A. M. Chavan and M. A. Albrecht European Southern Observatory, Karl-Schwarzschild-Str. 2, Dґ85748 Garching, Germany; E-mail: amchavan@eso.org Abstract. ... ESO is developing a Phase I I Prop osal Preparation system (P2PP) to collect detailed scientific programme descriptions, in the form of observation blocks (OB). ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/chavana.pdf -- 143.1 Кб -- 14.01.1998
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1984. http://www.adass.org/adass/proceedings/adass96/reprints/chans2.pdf
... CHECKPSF: check the PSF (Point Spread Function) model , Ї DUMPMARK: mark and lab el ob jects on the displayed frame, Ї EXAMPSFGP: examine the PSF model , Ї FINMISS: find missing stars not found with DAOFIND, Ї FINSHIFT: find the image shifts with resp ect to the reference image, Ї FINFIT: fit all the stars , including the missing stars , with the final PSF model , Ї FIRSTPSF: obtain the first iteration of a PSF Near-IR Imaging of Star-forming Regions with IRAF 2.3. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/chans2.pdf -- 159.8 Кб -- 14.01.1998
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1985. http://www.adass.org/adass/proceedings/adass96/reprints/chans1.pdf
... This is part of an effort to search for ob jects with an emission feature at 21 ?m from the IRAS data base. ... To date, we have searched the LRS sp ectra of all p ossible IRAS p oint sources with a 21 ?m feature in the IRAS LRS data base. ... Raw IRAS data in GIPSY are stored as 4-D data sets (cf. ... If all snip-sp ectra and also all PLSCAN Reliable IRAS-LRS Data via the Groningen IRAS Server 91 snip-sp ectra of a target source were consistent with each other, a final averaged sp ectrum is...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/chans1.pdf -- 207.9 Кб -- 14.01.1998
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1986. http://www.adass.org/adass/proceedings/adass96/reprints/buskoi.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. Error and Bias in the STSDAS fitting Package I. C. Busko Space Telescope Science Institute, Baltimore, MD 21218, E-mail: busko@stsci.edu Abstract. ... Results show that b oth methods may generate biased coefficients (at the few p ercent level), and over or under-estimate error bars (at the 10 p ercent level), in particular from low signal-to-noise data. ... Poisson noise introduced underestimation bias at a level of a few p ercent for lower (2ґ5) S/N data....
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/buskoi.pdf -- 349.3 Кб -- 14.01.1998
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1987. http://www.adass.org/adass/proceedings/adass96/reprints/bushouseh.pdf
... CALNICB processing is divided into the following ma jor steps: Ї read the list of input images from the association table and load all data, NICMOS Calibration Pip eline: Associations of Exp osures Ї determine processing parameters from header keywords, Ї combine multiple images (if any) at individual pattern p ositions, Ї measure and remove background illumination, Ї create mosaic images from overlapping pattern p ositions, and Ї create an up dated output association table. ... Table 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/bushouseh.pdf -- 133.6 Кб -- 14.01.1998
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1988. http://www.adass.org/adass/proceedings/adass96/reprints/brownl.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. POW: A Tcl/Tk Plotting and Image Display Interface Tool for GUIs L. E. Brown Hughes STX for NASA/GSFC, Code 664, Greenbelt, MD 20771, E-mail: elwin@redshift.gsfc.nasa.gov L. Angelini USRA for NASA/GSFC, Code 664, Greenbelt, MD 20771, E-mail: angelini@lheavx.gsfc.nasa.gov Abstract. 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 sp ecific cursor p ositions. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/brownl.pdf -- 141.5 Кб -- 14.01.1998
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1989. http://www.adass.org/adass/proceedings/adass96/reprints/belld.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. A Filtering KPNO L TEX Observing Proposals with Perl David J. Bell National Optical Astronomy Observatories, Tucson, AZ 85726-6732 Abstract. ... Observer A and prop osal information fields in these files are well-marked with L TEX tags, thus allowing automated extraction and imp ortation to observatory databases. ... L TEX Date Fields and Filter Output. ... Conclusion A A Perl script has b een develop ed for filtering KPNO L TEX observing prop osals. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/belld.pdf -- 134.2 Кб -- 14.01.1998
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1990. http://www.adass.org/adass/proceedings/adass96/reprints/ballesterp.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. Calibration and Performance Control for the VLT Instrumentation P. Ballester, K. Banse, and P. GrosbЬl European Southern Observatory, Karl-Schwarzschildstr. ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pip eline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/ballesterp.pdf -- 108.3 Кб -- 14.01.1998
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1991. http://www.adass.org/adass/proceedings/adass96/reprints/allens.pdf
... World coordinate system (WCS) information is needed for mapping b etween FITS pixels and many other systems. To p ermit an arbitrary numb er of WCS mappings, we extend the FITS metaphor by placing the WCS information in a FITS table. ... As an alternative, we store the bulk of the WCS information in a separate FITS table associated with the image HDUs. ... Thus the WCS table scheme p ermits archival documentation of arbitrary numb ers of WCS mappings for the FITS pixels of a given image. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/allens.pdf -- 128.7 Кб -- 14.01.1998
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1992. http://www.adass.org/adass/proceedings/adass96/reprints/albrechtr.pdf
Astronomical Data Analysis Software and Systems VI ASP Conference Series, Vol. ... In collab oration with the STScI and with the NICMOS Investigation Definition Team we have b een developing software to predict asp ects of NICMOS p erformance and to analyze NICMOS grism data. Quick look analysis software has b een develop ed to extract sp ectra from NICMOS grism images and matching direct images to supp ort ground testing and in-orbit verification. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/albrechtr.pdf -- 125.3 Кб -- 14.01.1998
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1993. http://www.adass.org/adass/proceedings/adass96/reprints/albrechtm.pdf
Astronomical Data Analysis Software and Systems VI ASP Conference Series, Vol. 125, 1997 Gareth Hunt and H. E. Payne, eds. Access to Data Sources and the ESO SkyCat Tool M. A. Albrecht, A. Brighton, T. Herlin, P. Biereichel European Southern Observatory D. Durand Canadian Astronomy Data Center, DAO/NRC Abstract. SkyCat is a tool that combines image visualization with access to astronomical catalogs and data archives. ... Access to Data Sources and the ESO SkyCat Tool 335 Figure 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/albrechtm.pdf -- 147.8 Кб -- 14.01.1998
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1994. http://www.adass.org/adass/proceedings/adass96/reprints/agafonovm.pdf
... 125, 1997 Gareth Hunt and H. E. Payne, eds. Image Reconstruction with Few Strip-Integrated Pro jections: Enhancements by Application of Versions of the CLEAN Algorithm M. I. Agafonov Radiophysical Research Institute (NIRFI), 25 B. Pecherskaya st., Nizhny Novgorod, 603600, Russia, E-mail: agfn@nirfi.nnov.su Abstract. ... On the other hand, TC-CLEAN accumulates its result from the most extended comp onents that satisfy the constraints, producing the smoothest solution (Agafonov & Podvo jskaya 1990). ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/agafonovm.pdf -- 154.5 Кб -- 14.01.1998
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1995. http://www.adass.org/adass/proceedings/adass96/reprints/accomazzia.pdf
Astronomical Data Analysis Software and Systems VI ASP Conference Series, Vol. ... The NASA Astrophysics Data System integrates a wealth of scientific bibliographic and data resources--originally generated in multiple formats and available from multiple providers--in three disciplineoriented, centralized databases. ... Currently the ADS Astronomy database allows users to search by author name, astronomical ob ject name, keywords,2 words in the title, and words in the abstract text. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/accomazzia.pdf -- 140.1 Кб -- 14.01.1998
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1996. http://www.adass.org/adass/proceedings/adass96/reprints/abbottm.pdf
... We present an overview of the ETOOLS pro ject and describ e some of the design features of the ETOOLS system. ... Event data sets will typically consist of several event lists and tables of auxiliary information, along with various filters that may have b een established, and images and light curves that have b een computed. ... Relationships and interactions are supp orted b etween basic ob jects, which implement additional functionality needed to fully represent event data (see ї4). ... Table. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/reprints/abbottm.pdf -- 119.8 Кб -- 14.01.1998
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1997. Footnotes
FFT. the FFT is written in C for efficiency and dynamically linked into Java at run time ...year. ... We do not discount the possibility of a version of Grid being made commercially available but none-the-less we will always provide a free version for download.. ... 1995. ISO is an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of ISAS and NASA...state. ... Germany. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/footnode.html -- 9.3 Кб -- 18.06.1997
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1998. http://www.adass.org/adass/proceedings/adass94/wangz.ps
... Outline of SWAS Software Design The SWAS data reduction software is designed to perform the following basic functions: (1) check data integrity, find time gaps and possible noise spikes, and flag bad data according to various diagnostics and ancillary ancillary (mostly instrument housekeep) information; (2) apply (ONґOFF/OFFґZERO) and passґ band calibration to each of the 2 s spectra ; (3) evaluate and apply wavelength calibration ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/wangz.ps -- 62.4 Кб -- 13.06.1995
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1999. http://www.adass.org/adass/proceedings/adass94/zhangc.ps
... With a stack of input images, one can identify bad pixels by comparing the deviation of a pixel from the mean with a userґspecified threshold times the clipping sigma. ... By uniform weighting, we mean that the weight is a constant for all pixels in an input image. ... In the code, the trimmed mean or median is used. ... If the error maps exist for input images, one does not have to compute the clipping sigma, because the sigma is available from the input error maps for each individual pixels. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/zhangc.ps -- 72.1 Кб -- 13.06.1995
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2000. http://www.adass.org/adass/proceedings/adass94/wellsd.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Visualization of GBT Geometry D. C. Wells National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903ґ2475 Abstract. ... Perspective images computed by AVS from geometric descriptions of the components of the telescope have been used when selecting locations for the installation of laser rangefinders and when checking geometrical relationships along the optical path. ... The AVS Network. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/wellsd.ps -- 1048.4 Кб -- 13.06.1995
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