... Posts tagged ?parameter estimation? ... Leccardi & Molendi (2007) have a paper in A&A ( astro-ph/0705.4199 ) discussing the biases in parameter estimation when spectral fitting is confronted with low counts data. Not surprisingly, they find that the bias is higher for lower counts, for standard chisq compared to C-stat, for grouped data compared to ungrouped. ... Tags: bias , C-stat , chi-square , chisq , Cstat , Fitting , parameter estimation , Peter Freeman , spectra . ... 1 Comment . ...

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• The AstroStat Slog nuisance parameter
• Comments on: A test for global maximum By: hlee By: aneta
• The AstroStat Slog Blog Archive [ArXiv] Matching Sources, July 11, 2007

... CentralProcessor 0.11 documentation . ... Normally the parameters are stored in a text file as key-value pairs. ... key = value . ... String values can optionally be enclosed in quotes (single or double quotes). If containing special characters (e.g. whitespace), they have to be enclosed in quotes. Numeric values should not be enclosed in quotes. ... Continuation of quoted values must also be enclosed in quotes. ... A value can be any value, thus also a vector or another repeated value set. ...

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• Task parameter manipulation
• User Parameters - Continuum imaging CentralProcessor 0.11 documentation
• Package: chs

... Apache HTTP Server Version 2.4 . ... macro_module . ... These macros have parameters. ... macro definition within a <Macro> section, following the apache style. user defined names for the macro and its parameters. macro names are case-insensitive, like apache directives. macro parameter names are case sensitive. macro parameters must have distinct names. error on empty parameter names. redefining a macro generates a warning. macro definitions can be nested... (but what for?) . ... Use of a macro: . ...

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• Program parameters
• httpd - Apache Hypertext Transfer Protocol Server - Apache HTTP Server
• mod_session_crypto - Apache HTTP Server

... Fit Teff, theta and E(B-V) to IUE spectrum and uvby photometry using a grid of helium-rich model flux distributions. models{ . ... simon/models/01980001/19325he90L.s . simon/models/01980001/20325he90L.s . simon/models/01980001/21325he90L.s . simon/models/01980001/22325he90L.s . simon/models/01980001/23325he90L.s . simon/models/01980001/24325he90L.s . simon/models/01980001/25325he90L.s . simon/models/01980001/26325he90L.s . ... IUE data file in "spectrum format 2" . ...

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• sfit help file
• Sfit Control Language: Classified Listing
• FFIT - Command Syntax

... StelScriptMgr Class Reference . ... const QStringљ . ... Stops any running script. ... If the file is not found or cannot be opened for some reason, an Empty string will be returned. const QString StelScriptMgr::getDescription . ... If the file is not found or cannot be opened for some reason, an Empty string will be returned. const QString StelScriptMgr::getLicense . ... Get the rate at which the script is running as a multiple of the normal execution rate. void StelScriptMgr::pauseScript . ...

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• Stellarium: SphereParams Struct Reference
• Stellarium: StelGeometryBuilder Class Reference
• Stellarium: TextParams Struct Reference

From XEphem running the Soft03Cmt database of 20121002, for the date and time of the observation: RA: 08:16:04.25 Dec: 27:48:13 2012-09-30 UT 09:45 UTC Measured: RA: 08:16:04.4 Dec: 27:48:12.9 Header listing for HDU #1: SIMPLE = T / This is a FITS file BITPIX = -32 / NAXIS = 2 / NAXIS1 = 4341 / NUMBER OF ELEMENTS ALONG THIS AXIS NAXIS2 = 4355 / NUMBER OF ELEMENTS ALONG THIS AXIS EXTEND = T / This file may contain ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/messier/m67/20110406/tmp/m67_4s_12800iso_1302145416.axy
• http://www.astro.louisville.edu/shared_skies/archive/select/stars/pegasus/enif/20101007/nikon_1286507318_enif.rdls
• http://www.astro.louisville.edu/shared_skies/archive/select/stars/pegasus/enif/20101007/nikon_1286507318_enif-indx.xyls

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...

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• Recent Advances in Parameter Estimation in Astronomy with Poisson-Distributed
• A Python-based IRAF Task Parameter Editor
• TwoFitlines: An Spectrum and Line Analysis Tool

Fortran 90 properties already in CF77 . ... Only the old form (fix form) of the source code is available. ... LOGICAL Default KIND number = 8 INTEGER Default int7 int15 KIND number = 6 1 2 digits = 46 7 15 radix = 2 2 2 range = 13 2 4 huge = 70368744177663 127 32767 bit_size = 46 8 16 INTEGER int31 int46 int64 KIND number = 4 6 8 digits = 31 46 63 radix = 2 2 2 range = 9 13 18 huge = 2147483647 70368744177663 9223372036854775807 bit_size = 32 46 46 REAL half Default,single double KIND ...

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• Tutorial on Fortran 90, Digital UNIX
• NAG's Fortran 90
• Notation

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

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• East Siberian Center for the Earth's Ionosphere Research. Modelling, secondary
• East Siberian Center for the Earth's Ionosphere Research. Capabilities and
• East Siberian Center for the Earth's Ionosphere Research. Specific character

... Space flight . ... Zero Gravity . ... Characteristics of a Complex Flight: . ... Characteristics of the Reduced Gravity (Lunar Gravitation): . ... Characteristics of the Reduced Gravity (Martian Gravitation): . ... Services / Zero Gravity: General description Technical description Flight parameters Photo gallery Price . ...

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... Main page . ... Parameters . ... Modes: . ... Long-slit . ... Back to SAO web page . ... This page is designed by A.V. Moiseev . ... The SCORPIO-2 project: . Spectral Camera with Optical Reducer for Photometric and Interferometric Observations - 2 . The SCORPIO-2 main parameters . ... Spectral range . ... Spectral resolution . R=500-4000 in long-slit mode . R=4000-15000 in scanning FPI mode . The CCD detector . ... The quantum efficiency measurements for CCD detector ...

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• SCORPIO parameters
• Parameters of the 41 Dra system components
• IFP parameters

... RC0302+0455 . RC0308+0454 . ... RC0355+0449 . Radio source parameters . ... R.A.(B1950) Dec.( B1950) Freq. ... Parameters of optical candidates for identification . R.A.(J2000) Dec.( J2000) R.A.(B1950) Dec.( B1950) Magn. ... J2000) angle fwhm (X:Y) 03:08:33.98 +04:54:10.5 . ...

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... Configuration The dictionary accepts one obligatory parameter - RULES, which has to be set to the file describing parsing rules and output recipes. ... Each non-empty line is either a comment (when started with '#' symbol), or a conversion rule, and in the latter case has to contain whitespace-separated pattern and output recipe. Currently, pattern has to match the _integer_ (one, two or more) number of input tokens; they will be replaced with a single one. ...

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• astro-ph

Computer Ephemeris for 2014 from DE200/LE200. Orbital parameters of the Sun. Date Mean Perigee Mean Paral Aberrat Epsilon Nutat longitude longitude anomaly Dec 24 272.6887 283.1787 349.5100 8.941 20.832 2326 6.72 -8.19 Jan 3 282.5451 283.1792 359.3660 8.943 20.837 6.71 -8.18 13 292.4016 283.1796 9.2220 8.942 20.834 6.76 -8.11 23 302.2581 283.1801 19.0780 8.935 20.818 6.87 -7.99 Feb 2 ...

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• Sun orbital parameters for Computer Ephemeris for 2015 (DE200/LE200).
• Sun orbital parameters for Computer Ephemeris for 2016 (DE200/LE200).
• Optical static Fourier spectrometer

... Parameters of the Moon-perturbed orbit . ... From orbits consistent with this limitation and with the date of the launch October 1, 2000 as an example, an orbit was selected with apogee directed to the North Galactic pole at the begining and rotation of orbit plane was maximized. The initial state vector is given in the inertial coordinate system in epoch J2000.0. ... The orbit has initial perigee radius Rp=7000.0 km, initial apogee radius Ra=343000.0 km and initial period T=8.453 days. ...

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• Results of measurements of SRT antenna parameters in Pushchino
• MILLIMETRON

. The last update of data . 2016-04-10 . Visitors: . 96943 . Questions and comments: . lvg@sao.ru . Tables . Actual Version of the Nearby Galaxy Catalog in MRT format. Catalog of Nearby Galaxies . Global Parameters of the Nearby Galaxies . List of Apparent Magnitudes . List of Heliocentric Velocities . List of Inner Kinematics . List of Distances . List of the nearby galaxies with measured SFR . List of Bibliographic References .

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... Param?tres . ... Centre de Donn es sur les Satellites Naturels. Param tres et constantes . ... Satellites de Mars . Satellites de Jupiter . Satellites de Saturne . Satellites de Uranus . Satellites de Neptune . Satellite de Pluton . Masses de satellites . Dimensions de satellites . Param tres photom triques de satellites . Param tres de rotation et p les . El ments orbitaux moyens des satellites lointains de Jupiter, Saturne, Uranus et Neptune . ...

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• IMCCE-SAI: Natural Satellites Data Center (NSDC). Parameters
• The determination of parameters of the gravity anomalies sources
• Nat.Sat.Obs.Data

Light scattering by axisymmetric particles within a new approach to the T-matrix method The code AXISYM0.FOR realises the new approach to the solution of the light scattering problem suggested by Farafonov (Opt. ... Below them one finds also the description of the input and output parameters, and a list of some used subroutines. The comments given through the code's text allow one to follow its general structure. The file IN contains the input parameter values for a test run. ...

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• AI SPbU library of scattering codes
• Database of Optical Properties -- Level: subpage
• Database of Optical Properties -- Level: subsubpage

... Wind Baffle Parameters . ... As part of this analysis, the volume, mass, center of gravity and mass moment of inertia of the telescope and optics support structure (OSS) were computed. ... The total moment of inertia of the circular floor panel, wind baffle and telescope in azimuth should be correct to 30% but is dependent on estimates of the mass of equipment supported below and above the circular floor panel. ... Table 8 : Masses and mass moments of inertia of the wind baffle components. ...

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• sgs summary
• what to do with the trace data
• TUI:Scripts:Built In Scripts:NICFPS:Data Cube

THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...

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• http://selena.sai.msu.ru/Pug/Publications/m44_70_pugacheva.pdf
• Svetlana G. Pugacheva
• Comment