Arecibo Upgrade Notes INSTRUMENTAL POLARIZATION : POLARIZATION ISOLATION ERRORS IN STOKES PARAMETERS Jim Cordes Joe Lazio 22 May 1996 Summary The purpose of this memo is to: 1 demonstrate how polarization isolation is related to errors in Stokes parameters ; 2 estimate a tolerable level of errors in Stokes parameters due to amplitude and ... There we had a level of cross coupling that gave about 10 errors in Stokes parameters. ...

In this chapter we will consider an example of visual expert system written on the Actor Prolog language. ... There are a lot of methods of oil field bed stimulation that increase output of the oil production: thermal, physical-chemical, gas, microbiological, and others. ... Fig. ... The Top-Most diagram consists of three blocks: the "Describe parameters of hydrocarbon field" block, the "Check adaptability of existed methods of oil production" block, and the "Display solution" block. ... Gas methods. ...

... We describe model atmosphere and synthetic spectrum t- ting software used for the semi-automatic analysis of a wide range of stellar spectra, and provide examples of their application. ... References Aznar Cuadrado R., & Je ery C.S., 2001, A&A, 368, 994 Aznar Cuadrado R., & Je ery C.S., 2002, A&A, 385, 151 Bailer-Jones C.A.L., Irwin M., Gerard G., & von Hippel T. 1997, MNRAS 292, 157 Hubeny I., & Lanz T. 1995, ApJ, 439, 875 Je ery C.S. 1991, Newsletter on `Analysis of Astronomical Spectra' No. ...

... 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. ...

... Our Java and Python software runs anywhere on Windows, Mac, and Linux . ... Alsvid - Algorithms for visualization and processing of image data with Python . Our observatory software . PyDome - Astronomical dome control in Python . ... Software archive . ... XEphem for visual access to astronomical data and remote telescope operation (Linux and Mac OS X) . ... SAOImage DS9 for astronomical data visualization (Linux, Mac OS X, and Windows) . ... G ttingen ImageJ astronomical resources . ...

To pass several arguments from the command line to the shell: cat first_5args # This script echoes the first five arguments # supplied to the script echo The first five command line echo arguments are $1 $2 $3 $4 $5 first_5args mines a pint john o.k. The first five command line arguments are mines a pint john o.k. This passes the arguments represented by parameters $1 through $5 to the shell script. ... This processes the three files given as arguments to the command printps . ...

... Астрономическая неделя с 11 по 17 апреля 2016 года . ... Александр Козловский . ... День открытых дверей на Пущинской РадиоАстрономической Обсерватории 09 апреля 2016 года . ... Полное солнечное затмение 9 марта 2016 года . ... Полное лунное затмение 28 сентября 2015 года . ... Затмение, которое произойдет 28 сентября 2015 года, является повторением через сарос (цикл повторений затмений равный 6585 дней или 18 лет 11 дней) полного лунного затмения от 16 сентября 1997 года с максимальной фазой 1,20.....

... THE SIMPLEST MODEL. ... 13, Moscow 119992, Russia E-mail: san@sai.msu.ru Abstract: The analysis of the simplest model shows that an asteroid ­ rubble pile evolves, depending on the parameter V2d (where V is the average velocity of fragments and d is the average distance between fragments), either as a conglomerate of "independent mutually gravitating clusters" (when V2d < fm, where f is the gravitational constant and m is the average mass of a fragment) or as a "receding cluster" (when V2d > fm). ...

Chair of solid state physics . ... Laboratory practical training on the structural analysis for 3rd year students of the Solid State Physics Chair of MIPT . ... X-ray diffraction methods in materials research . Debye method: determination of lattice parameters, identification of crystal phases . ... X-ray phase analysis: computer processing of X-ray diffraction spectra, identification of crystal phases using ICDD database . ... X-ray powder diffraction: qualitative phase analysis. ...

... A modern driver for a device will find out the bus-resource configuration without you having to tell it anything. ... In the worst case you must hard-code the bus-resources into the kernel (or a module) and recompile. In the middle are cases such as where you run a program to give the bus-resource info to the driver or put the info in a configuration file. ... You give such bus-resources as a parameter to the kernel or to a loadable module. ... Setserial is often run from a start-up file. ...

... Microlocal Analysis is a theory of Pseudo-Differential Operators and Fourier Integral Operators (PDOs and FIOs). ... Microlocal analysis comes in few flavors. ... We will consider semi-classical PDOs and FIOs: one can always get from there to standard PDOs and FIOs but semi-classical theory has more applications. Less formal description of (semi-classical) microlocal analysis is ``a semi-classical limit of quantum mechanics'' or ``high-frequency limit of electrodynamics'' (etc). ...

... CoordConv is written in C++ and Python, using SWIG as the C++ wrapper. ... In Python the following will convert an FK5 J2000 position to apparent topocentric coordinates at a specified TAI date: import coordConv taiDate = 4916391905 # TAI date in MJD, seconds site = coordConv . Site (-105.822616, 32.780988, 2788) # Apache Point Observatory 3.5m telescope # For better accuracy you may also specify UT1- TAI and pole wander in site ; # these may be obtained from IERS Bulletin B fk5Sys = ...

... Observatory . ... The Laboratory of Astrometry . Dept. for Physics of Stars&Galaxies . ... Astronomical Calendar . ... UkrVO . ... The purpose of research: Creating a stellar catalog to study the structure and kinematics of star systems, including open star clusters and stars with large proper motions; the enhancement ICRF / Hipparcos system to stars dawn to 17 m (V); Search of binary systems of brown dwarfs and determination of their parameters; astrometry of minor bodies of the Solar System. ...

... Matrix of Transformation | ... Software | ... The software includes: . attidf.for - a FORTRAN subroutine to get a matrix M (named PA in the subroutine text) to transform any vector from the S/C coordinate system to the GSE coordinate system: . V GSE = M * V S/C . To transform a vector from the GSE coordinate system to the S/C coordinate system transpose the matrix M: . ... We want to know the direction of this vector in the GSE frame for date: 30.05.1997, time 1h.0min.0sec. ut. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

Lessons learned from the Thirty Meter Telescope site testing Tony Travouillon Sebastian Els, Angel Otarola, Reed Riddle, Matthias Schoeck, Warren Skidmore TMT.XXX.PRE.05.0XX.DRF01 1 Introduction TMT and its Site testing. Important choice before going on site. ... Considerations during analysis of the data. TMT.XXX.PRE.05.0XX.DRF01 2 Some Background about the TMT Site Testing TMT is a 30m, segmented, RitcheyChretien telescope design. ... ASCA Cloud Cover Analysis So how do we do it in practice? ...

... Exploring the physics of Type Ia supernovae through spectral analysis . ... Their progenitor scenario as well as the details of the explosion mechanism remain a mystery. ... It produces a supernova spectrum for a given luminosity, photospheric velocity, time since explosion and several elemental abundances. Tweaking these parameters to produce a spectrum that fits an observed spectrum is a complex, as of yet, manual task. ... The search space is large and complex. ...

. Our introductory notes briefly describes the primary parameters of real scatterers, their basic models and methods of realization of the models. As an example, the models used in astronomy are overviewed. Our table after its completement will show a list of the most popular scatterer models and their parameters (under construction). To the top . Created by V.I. Last modified: 06/03/03, V.I.

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...