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. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

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• Observation Night National Astronomy and Ionosphere Center (Arecibo...

... Target Location in Aperture / 32-2 . ... Location of Image on Diode Array / 32-7 . ... Calibration Accuracies / 32-16 . ... Overall FOS calibration accuracy and the quality of your observations are governed by a variety of factors both internal and external to the instrument, which include: . ... The location of the target on the photocathode, which, in addition to having been influenced by acquisition-related consequences, is affected by FOS mechanism positional repeatability. ...

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• http://www.stsci.edu/documents/dhb/web/c25_stiserror.fm3.html
• Precision Photometry at the LMC Center: Simulating Post-COSTAR HST Observations
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Data files used in analysis (supported by the IAA except other stated) . ... Database name-Experiment code cross-reference table (based on the IVS master files, updated with every new session) . ... Observations Statistics (updated near-daily) . ... Starting from June 2004 IAA AC regularly submits NGS cards to the IVS with a delay of several hours after appearing of the database in the IVS archive. ... Session tropospheric paremeters are regularly submitted to the IVS troposphere combining center ...

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... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

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• Center for Linguistic Documentation
• Moscow Center for Continuous Mathematical Education - Independent University of

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

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... Higher Criticism Statistic: Theory and Applications in Cosmology and Astronomy [.pdf] . ... pdf ] . ... Fitting Narrow Emission Lines in X-ray Spectra [.pdf] . ... A Convex Hull Peeling Depth Approach to Nonparametric Massive Multivariate Data Analysis with Applications . Abstract: We explore the convex hull peeling process to develop empirical tools for statistical inferences on multivariate massive data. ... We define the convex hull peeling depth, which enables to order multivariate data. ...

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• High Energy Astrophysics
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. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

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• Comet Center of SAI: Our observations

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

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Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences PUL Analysis Center Pulkovo IVS Analysis Center (PUL) 2009 Annual Rep ort Zinovy Malkin, Natalia Miller, Elena Popova Abstract This report briefly presents the PUL IVS Analysis Center activities during 2009 and plans for the coming year. The main topics of the investigations of PUL staff in that period were ICRF related studies, computation and analysis of EOP series, and VLBI2010 related issues. ...

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• Pulkovo VLBI Analysis Center
• Pulkovo EOP and Reference Systems Analysis Center (PERSAC)
• Pulkovo NEO Page: General Information

... Observations . ... Natural Satellites Data Center. ... Nomenclature of satellites | ... Inner satellites of Jupiter . ... Inner satellites . Mutual events of the Galileans . ... Inner satellites of Saturn . Main satellites of Saturn . ... Mutual events of the main satellites . Inner satellites of Uranus . Main satellites of Uranus . ... Mutual events of the Uranian satellites . Inner satellites of Neptune . Main satellites of Neptune . Outer satellites of Neptune . ...

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• Natural Satellites Data Center. Objectiv.
• Fulbright scholar Leonid Zotov
• Links to Sites Related to Solar Physics

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

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• Atomic Data Center: Main Page
• INFO: Atomic Data Center
• CENTER OF ATOMIC DATA CENTER FOR ASTROPHYSICS in AISPBU

... The spectrograph SP-124 at the Nasmyth-1 focus of the 6 m telescope with UAGS camera and Photometrix CCD PM1024 ( m pixel size) was used for the observations. ... Gratings with 300 and 600 grooves/mm were used, resulting in a spectral resolution of approximately 12 and 6 ? ... A He-Ne-Ar lamp was used for wavelength calibration. ... April 6.914 . ... The reduction of the original two-dimensional CCD data included the standard steps such as bias and dark subtraction, flat-fielding, cosmic-ray removal...

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• IPCS observations and data reduction
• Source Positions
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... At the Center of the Milk Way . ... NACO , ESO Explanation: At the center of our Milky Way Galaxy lies a black hole with over 2 million times the mass of the Sun. Once a controversial claim, this astounding conclusion is now virtually inescapable and based on observations of stars orbiting very near the galactic center. ... Publications with keywords: Milky Way - Galactic Center - black hole . Publications with words: Milky Way - Galactic Center - black hole . ... A Milky Way Band . ...

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• At the Center of the Milky Way
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• Астронет > At the Center of the Milk Way

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

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• Explanation of the table of physical observation of the Sun.

... 2008 December 11 . At the Center of the Milky Way . ... Explanation: At the center of our Milky Way Galaxy lies a supermassive black hole . Once a controversial claim, this conclusion is now solidly based on 16 years of observations that map the orbits of 28 stars very near the galactic center . ... Their ability to track stars so close to the galactic center accurately measures the black hole's mass and also determines the distance to the center to be 27,000 light-years. ... About APOD | ...

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• APOD: 2002 October 18 - At the Center of the Milk Way
• APOD: 2005 October 23 - At the Center of the Milky Way
• APOD: 2001 September 10 - Galactic Center Flicker Indicates Black Hole

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Since the Irkutsk IS radar is based on station "Dnepr", which was not intended for IS measurements, we made a serios effort to modernize this station in order to carry out ionospheric observations. Four main directions of the development of the radar experimental base: . modernization of the radar receiving system; . development of primary processing and measurement control methods; . ...

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• East Siberian Center for the Earth's Ionosphere Research. Capabilities and
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• East Siberian Center for the Earth's Ionosphere Research. Problems of the IS

ESAC Calibration management What does that mean ? ... 14 June 2006 Marcus G. F. Kirsch Marcus Kirsch , XMM-Newton European Space Astronomy Center Page 1 menu · X-ray calibration in the last century · Can we do better · Calibration management · Committee for X-ray calibration · Calibration mission scenario ESAC Marcus Kirsch , XMM-Newton European Space Astronomy Center Page 2 ...

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• http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200605/MKirsch_burst.pdf
• http://xmm.vilspa.esa.es/calibration/find_obs_logz_new.cgi
• http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200502/mk_xiat.pdf

Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... December . ... December, 2013 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...

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