... DEPENDENCE OF ORDINARY WAVE ANOMALOUS ABSORPTION ON THE SOUNDING PROBLEM PARAMETERS . ... Transformation of electromagnetic wave into plasma waves plays an important role in different processes taking place in ionospheric plasma. ... According to modern point of view transformation of ordinary wave into plasma waves plays an important role in small-scale random irregularities generation when ionospheric plasma is heated by power radio wave [1,2]. ... Anomalous attenuation. ...

... The very demanding goal of 50 milliarcseconds root-mean-square (mas RMS) for the astrometric precision of the Sloan Digital Sky Survey implies that focus and collimation motions of the secondary must be very smooth. The Apache Point Observatory 3.5-m telescope secondary is a hot-gas-fusion borosilicate lightweight (25% of solid) mirror. ... Differential rotation provides tilt motions. ... Also, we made measurements with the indicators sensing the motion of the whiffletrees near actuators 1 and 2. ...

... Perl . ... IDL is used for data analysis and graphics. ... Advantages of a language that is popular in the real world are the existence of web resources such as tutorials, a wide range of libraries of existing code you can use and modify, and better job prospects for you if you ever want to venture into the real world. ... Most data reduction systems (eg IRAF, MIDAS, Starlink) do not interface well with any programming language: IRAF has itуs own (very clunky) language in which you can write scripts...

MATHEMATICAL MODELING: . ... This model is developed on the base of the probabilistic description of the collisional aeronomical processes and is realized on a computer as the numerical system (stochastic model). ... Shematovich, V.I., Bisikalo , D.V.             Nonequilibrium processes in the planetary and cometary atmospheres. ... In Russian) . ... Piarnpuu , A. A.; and Shematovich, V. I.       Construction of structural stochastic models of collision processes in rarefied gas media (abstract) . ...

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. ...

... We show the analysis of low-hard and intermediate states of sources XTE J1550-564, H 1743-322, GX 339-4, XTE J1859-226, XTE J1650-500 and GRS 1915+105. ... Directly applying the scaling technique we also obtain that a ratio of the BH masses in XTE J1859-226 and in XTE J1550-564 is , and the corresponding ratio for XTE J1650-500 and XTE J1550-564 is . These values of scaling factors r implies that BH masses are ; solar masses in XTE J1859-226 and XTE J1650-500 respectively. ...

EVOLUTION OF RADIO NOISE STORMS AT COMPRESSED DYNAMIC SPERTRA . ... An analysis of large-scale variations of noise storm intensity and frequency spectra has been carried out basing on IZMIRAN dynamic radio spectra compressed in time. It is shown that various enhancements and weakening of noise storms as well as changes of their frequency spectrum appear to be caused by effects of coronal mass ejections on sources of the emission or/and electron acceleration in the corona. ...

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 . ...

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? ...

... Number theory . ... Linear algebra . Commutative algebra . Algebraic geometry . Noncommutative algebra, groups, rings, algebras . Category theory, homological algebra, $K$-theory . ... Ordinary differential equations . Partial differential equations . ... Fourier and harmonic analysis, integral transforms, operational calculus, integral equations . Functional analysis and operator theory . ... Geometry, differential geometry . ... Global analysis, analysis on manifolds . ...

Analysis of general features of the chaotic system behavior and investigation of the properties of concrete chaotic sources. ... Analysis of information properties of chaotic systems and chaotic oscillations as concrete objects for information processing and comunications. ... This hypothesis gives a possibility of designing simple mathematical structures accomplishing various processes of information processing using chaos. ... Activities | ... E-mail: chaos@mail.cplire.ru ...

... 2004: . Creation of a unique set of the spectral and polarization complex of high resolution in the range of 6-18 GHz, consisting of 64 channels with a 1% analysis stripe was concluded. Based on the combination of key parameters - the frequency overlap and resolution, sensitivity and accuracy of polarization measurements, such a complex is the first instrument of its kind in the practice of solar astronomy. ... Archive . ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

University Satellites and . Space Science Education . ... It is necessary to select a topic interesting from scientific point of view and simple enough to allow students understand and participate in all stages of experiment from measurements via data analysis to physical inference. ... Solar modulation effects and physical characteristics and analysis of the major solar events are possible only by joining data from space-born and surface particle and radiation detectors. ...

Альянс "Lockheed Martin" с "Final Analysis" . Российский гражданский флот лишился спутниковой связи . ... 16 февраля компания "Lockheed Martin Management & Data Systems" (M&DS) объявила о подписании с фирмой "Final Analysis, Inc." ... В соответствии с соглашением, подразделение корпорации "Lockheed Martin" будет монопольным поставщиком работ по сетевой системотехнике и интеграции для низкоорбитальной системы спутниковой связи FAIsat, создаваемой "Final Analysis". ...

E.T. MATVEYEVA, R.V.Shchepetnov Сatalogue of geomagnetic pulsations of Pc1 type on observation data at the Antarctic Observatory Mirny Geophysical Observatory Borok, Institute of Physics of the Earth RAS, Russia The catalogue is based on the analysis of long-term and continuous observations of pulsations such as Pс1 on the Antarctic Observatory Mirny( ? ... C?- traces of Pc1. ... The period of Pc1 in seconds (Ts) is determinated as averaged prevailing in the given time interval. ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Astronomy for Kids . ... Sky Events . ... Mars soil sample delivered for analysis inside Curiosity . ... NASA's Mars rover Curiosity has ingested its first solid sample into an analytical instrument inside the rover, a capability at the core of the two-year mission. ... Only registered members of Astronomy.com are allowed to comment on this article....

Image analysis of the VLBI experiment INTAS99.4 . PI: I. Molotov (GAO, Russia) . Analyst: A. Pushkarev (GAO, Russia; CrAO, Ukraine) . ... Frequency: 1.66 GHz . ... Antennas and their characteristics at 1.66 GHz . ... Bear Lakes (Russia) . ... Svetloe (Russia) . ... Pushchino (Russia) . ... CALIBRATION . Amplitude Calibration . Phase Calibration . ... 0420-014 . ... Quasar . ... 0420-014.gif . ... 0420+022 . ... 0420+022.gif . ... 0552+398 . ... 1308+326 . ... 1345+125 . ... 1803+784 . ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...