... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

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• Database of Optical Properties -- Level: subpage

Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

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• Energetic Particles
• IKI SSC INTMINS APRIL98

... Delivery Procedures . ... File Structure . Reference Files . ... The procedure compares two FITS reference files tables. ... The compared elements are limited to those specified in the COLUMNS parameter (which is necessary for this program to run). ... The parameter COLUMNS is an n-element array of strings with the names of the columns to compare within the table. ... When a combination is missing (in the new_file ;or in the old_file) the procedure will flag it in the standard output. ...

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• Fine Guidance Sensor Instrument Handbook
• Mode = POSConfig = FGS
• Index

The beam pattern and the polarization characteristics . of the radio telescope RATAN-600 . The Mueller matrix elements was computed via formulas [1]: . ... The BP were computed by the aperture method, proceeding from the fild distribution in the aperture of the primary mirror. The components of the main and cross-polarization components of the electric field in the vertical aperture of the primary mirror was computed in Frenel diffraction approximation. ...

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• Determination of atmospheric parameters and calculation of chemical composition
• Absorption bands identified with DIBs

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... Moscow 119992, Russia . ... 84/32, Moscow 117997, Russia . ... Our CCD observations compared to times of minima derived from the archival photographic plates and from the NSVS and ASAS-3 data clearly show that the orbital period of the system is variable. ... The phased light curve for the light elements . ... CCD, Moscow . ... and for the current linear light elements (in excellent agreement with the NSVS, ASAS, and our CCD observations): . ...

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• XWare > APOD

function pred_flx, line ,logT,wvl, DEM ,Z=Z,NH=NH, fobs = fobs , fsigma = fsigma ,$ ulim=ulim,verbose=verbose, _extra=e ;+ ;function pred_flx ; return line fluxes for a given DEM and compare with observed fluxes. ; ;syntax ; f=pred_flx( line ,logT,wvl, DEM ,Z=Z,NH=NH, fobs = fobs , fsigma = fsigma ,$ ; ulim=ulim,verbose=verbose,effar=effar,wvlar=wvlar,fH2=fH2,He1=He1,$ ; HeII=HeII,/fano) ; ;parameters ; line [ ...

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• The AstroStat Slog parameter estimation
• Chandra Images for SNR J0519.5-6902
• Spectral Analysis

Following designations of elements/ parameters are used in AMPLE. ... mean anomaly . ... Node . ... Apart conventional orbital elements AMPLE gives possibility to calculate for each minor planet the following often used functions: . ... MOID . ... To calculate MOID user should order the name or the number of the major or minor planet through dialog. ... To calculate CT user should order the name or the number of the major or minor planet through dialog as it is proposed for MOID calculation. ...

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• ENGAMPLE
• AY2008 (preface)
• AY2011 (preface)

. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

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Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

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• Restrictions on the Scenario Parameters
• Initial parameters of compact stars
• The COOC Criterion (Criterion of Observations versus Calculations)

... 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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• Modelling Spectro-photometric Characteristics of Eclipsing Binaries
• Observation Interval Determination for the Chandra X-ray Observatory
• ADASS 2003 Conference Proceedings

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). Parameter . ... Default . Constraints . columns . ... List of fully qualified column names . elements . ... Int . Number of the elements to be set. 0 means all elements from element to end of row (inclusive) . ... Number of the first element to be set. fromrow . ... Number of the first row . rows . ... Number of rows. 0 means all rows from row to end of column (inclusive) . ...

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Observed maximum rotation velocity uncorrected for inclination effect. This quantity is calculated from 21-cm line widths at different levels and/or rotation curves (generally in H_alpha). ... These data are characterized by some secondary parameters: telescope, velocity resolution, level of the 21-cm line width and bibliographic reference. ... we start from a standard sample (a set of measurements giving a large and homogeneous sample). ... HyperLeda . ...

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• First results from follow-up spectroscopy with the NOT
• Documentation: LEDA: parameter: vvir
• Line parameter measurements

... Classes . ... Class List . ... casa::SpectralList . ... SpectralList ( uInt nmax) . ... SpectralList (const SpectralElement &in) . ... Convert to and from a Record (see details in SpectralElement ). void casa::SpectralList::insert . ... Insert in sort order in the list. void casa::SpectralList::insert . ... References list_p , and casa::PtrBlock< T >::nelements() . ... const SpectralElement & casa::SpectralList::operator[] . ... PtrBlock < SpectralElement *> casa::SpectralList::list_p [private] . ...

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• Cosmological Parameter Survey Using the Gravitational Lensing Method
• The Elements of Gravitational Lensing
• Absolute Parameters

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/Shev/Publications/ms38/ms084.pdf
• http://selena.sai.msu.ru/Pug/Publications/ms38/ms080.pdf
• http://selena.sai.msu.ru/Ber/Publications/ms40/88_Yamashita%20et_al.pdf

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Investigations of the ionospheric response to strong magnetics storms which are usual for our latitudes, are of great interest. ... In the figure, we present ionospheric parameter dynamics during three perturbed days in July 2000. ...

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... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

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• Influence of onboard events onto spin parameters
• Concerning Steady State Corotation of the Io Plasma Torus
• Space Physics Group of Oulu

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

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• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/submit.htm
• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/button.htm
• http://www.arcetri.astro.it/irlab/doc/library/javascript/clientreference/reset.htm

Astronomers at Armagh Observatory observed the partial eclipse of the Sun on 29 March under unusually good conditions. ... The images, taken by astronomer Miruna Popescu, shows the eclipse as seen from the Armagh Observatory at around 11:30 (Summer Time) on 29th March, and the way it was observed by astronomer Apostolos Christou with a small portable telescope equipped with a filter to protect against the Sun's dangerous radiation. ... For more images from Armagh see: Miruna Popescu's Pages . ...

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• Armagh Observatory
• sfit help file
• Mutual Events of the Uranian Satellites

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

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• Celestial calendar - Solar Eclipses