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2101. http://www.adass.org/adass/proceedings/adass94/blackburnj.ps
Astronomical Data Analysis Software and Systems IV ASP Conference Series, Vol. 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. FTOOLS: A FITS Data Processing and Analysis Software Package J. K. Blackburn 1;2 NASA Goddard Space Flight Center, Code 664.0, Greenbelt, MD 20771 Abstract. ... The user interface is controlled by standard IRAF parameter files. The package is self documenting through the IRAF help facility and a stand alone help task. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/blackburnj.ps -- 189.1 Кб -- 13.06.1995
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2102. http://www.adass.org/adass/proceedings/adass94/basartj.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Improvements in Filter Design for Removing Galactic ``Cirrus'' from IRAS Images J. P. Basart, L. X. He Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011 P. N. Appleton Department of Physics and Astronomy, Iowa State University, Ames, IA 50011 J. A. Pedelty Space Data and Computing Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771 Abstract. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/basartj.ps -- 328.3 Кб -- 13.06.1995
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2103. http://www.adass.org/adass/proceedings/adass94/barrettp.ps
Astronomical Data Analysis Software and Systems IV ASP Conference Series, Vol. ... With the advent of the Guide Star Catalog and other large astronomical source lists, an efficient method of storing and accessing such spatial data is necessary. ... Data Structures for Multiґdimensional PointґData A common query of astronomical databases is the range query (i.e., region search), which requests all records from a database whose specified attributes are within given ranges. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/barrettp.ps -- 144.3 Кб -- 13.06.1995
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2104. http://www.adass.org/adass/proceedings/adass94/ballesterp.ps
... This paper describes various methods for the analysis of spectroscopic data, particularly as they relate to wavelength calibration of echelleґformat spectra. ... A short introduction to robust regression by LeastґMedian of Squares is presented in Section 2. ... Wavelet transform can be useful in complementing robust techniques for mulґ tiresolution analysis, and Section 4 presents an application of the Mexican hat transform to the detection of spectral features. ... Robust Regression 2.1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/ballesterp.ps -- 810.6 Кб -- 13.06.1995
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2105. http://www.adass.org/adass/proceedings/adass94/jonesa.ps
... Judged by their instrumental profiles, spectrometers fall into two basic classes---Lorentzian and Gaussian---with many other line profile functions (sinc m functions, Voigt functions, Airy functions, etc.) falling into one of these two categories in some limit. We demonstrate that the Rayleigh, Sparrow, and Houston resolution criteria are of limited use compared to the ``equivalent width'' of the line profile. ... The Airy function is periodic over the interval \Deltax. Rayleigh criterion. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/jonesa.ps -- 2485.7 Кб -- 13.06.1995
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2106. http://www.adass.org/adass/proceedings/adass94/ansaris.ps
... A year later the data is then publicly available. ... 0077, 1982 00 40 03.01 +40 58 59.8 NGC224 L 23ґJUNґ79 SWP5610L APJ Vol. 0259, pg. ... 0077, 1982 00 40 00.51 +40 59 04.0 NGC224 L 12ґDECґ79 LWR6368L APJ Vol. 0259, pg. ... 0077, 1982 00 40 00.51 +40 59 04.0 NGC224 L 11ґJULґ80 SWP9494L APJ Vol. 0259, pg. 0077, 1982 00 40 00.51 +40 59 04.0 NGC224 L 12ґJULґ80 SWP9502L APJ Vol. 0259, pg. 0077, 1982 00 40 00.51 +40 59 04.0 NGC224 L 13ґJULґ80 LWR8236L APJ Vol. 0259, pg. ... 0077, 1982 Table 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/ansaris.ps -- 105.7 Кб -- 13.06.1995
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2107. http://www.adass.org/adass/proceedings/adass94/alland.ps
... The Abstract Data Interface (ADI) is a system within which both abstract data models and their mappings on to file formats can be defined. The data model system is objectґoriented and closely follows the Common Lisp Object System (CLOS) object model. ... Data Models ADI is a system for defining ``abstract data models.' ... Figure 1 shows a schematic view of the Array abstract model. ... Implementation ADI was designed as an objectґoriented system where data models are defined as classes. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/alland.ps -- 56.8 Кб -- 13.06.1995
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2108. http://www.adass.org/adass/proceedings/adass94/aket.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Calculating the Position and Velocity Components of HST T. B. Ake Astronomy Programs, Computer Sciences Corporation, Code 681/CSC, Goddard Space Flight Center, Greenbelt, MD 20771 Abstract. ... COSINCLI cosine of inclination cos i SINEINCL sine of inclination sin i CIRVELOC circular orbit linear velocity (meters/second) VC TIMEFFEC time parameters took effect (secs since 1/1/85) -- 2. ... Gamma 2ъ ?\Omega x; ? z = a 0 z + a 1 sin i cos(! ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/aket.ps -- 154.9 Кб -- 13.06.1995
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2109. http://www.adass.org/adass/proceedings/adass94/adorfhm2.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Interpolation of Irregularly Sampled Data Series---A Survey H.ґM. Adorf Space Telescope--European Coordinating Facility, European Southern Observatory, KarlґSchwarzschildґStr. ... This contribution surveys the methods used in astronomy for the interpolation of irregularly sampled oneґdimensional data series. ... Direct Fourier Transform This method (Scargle 1989) is applicable to data with arbitrary sampling. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/adorfhm2.ps -- 62.5 Кб -- 13.06.1995
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2110. http://www.adass.org/adass/proceedings/adass94/adorfhm1.ps
Astronomical Data Analysis Software and Systems IV ASP Conference Series, Vol. ... The POCS ґBased Combination Algorithm Assuming that the relative shifts between the undersampled frames are known, the POCS ґ algorithm (for two undersampled frames ) can be stated as follows: 1. guess initial high ґ resolution (hiґ res ) estimate 2. fractionally shift hiґ res frame to register it with lowґ resolution (loґ res ) frame #1 and replace pixel values in hiґ res frame by those from loґ ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/adorfhm1.ps -- 327.7 Кб -- 13.06.1995
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2111. http://www.adass.org/adass/proceedings/adass94/accomazzia.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. ADS Abstract Service Enhancements A. Accomazzi, C. S. Grant, G. Eichhorn, M. J. Kurtz, and S. S. Murray Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 Abstract. The Astrophysics Data System is enhancing functionality and access to the Abstract Service in several areas. A new WAIS server running the freeWAIS search engine has been added to the existing HTTP and ANSAґbased servers. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/accomazzia.ps -- 64.1 Кб -- 13.06.1995
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2112. http://www.adass.org/adass/proceedings/adass94/abbottt.ps
... Supporting all of these CCDs poses some unusual problems. ... For each test , we collect the following data : (1) nine bias frames, (2) sixteen pairs of flat fields (both of each pair have the same integration time) using a stable light source and with exposure levels ranging from just above bias to digital saturation, (3) nine lowґcountґlevel (of order a few hundred electrons per pixel) flatґfields with stable light source, (4) one flatґfield exposure obtained with 64 rapid ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/abbottt.ps -- 284.1 Кб -- 13.06.1995
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2113. http://www.adass.org/adass/proceedings/adass94/abbottm.ps
... 77, 1995 R. A. Shaw, H. E. Payne, and J. J. E. Hayes, eds. Interactive Fitting of EUVE Emission Line Spectra M. Abbott Center for EUV Astrophysics, 2150 N. Kittredge St., Berkeley, CA 94720ґ5030 Abstract. An interactive IRAF task for the analysis of Extreme Ulґ traviolet Explorer (EUVE) emission line spectra is presented. ... Also, model EUVE spectra may be constructed and overlaid using plasma emissivities and source emission measures supplied by the user. ... The user 3 Figure 2. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/abbottm.ps -- 1986.5 Кб -- 13.06.1995
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