The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

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Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

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... 2007 November 28 . Comet Holmes from the Hubble Space Telescope . Credit: A. Dyer (Ground based image); NASA , ESA , and H. Weaver ( JHU APL ) (Hubble image) . Explanation: Why did Comet Holmes brighten? ... Clues to the nearly million-fold brightness increase are therefore being sought in dramatic images of the enigmatic comet's central regions taken earlier this month by the Hubble Space Telescope . ... Tomorrow's picture: pixels in space . ... About APOD | ...

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• APOD: 2012 November 8 - Arp 188 and the Tadpole's Tail
• APOD: 2014 August 25 - Arp 188 and the Tadpole's Tail
• APOD: March 11, 1996 - Hubble Telescope Maps Pluto

... We discuss the application of the Pixon Based Image Restoration Method on spectroscopic HST data and compare the results with those obtained from the Richardson-Lucy and Jansson algorithms. In order to better evaluate the performance of the various algorithms we have also used artificial data. Keywords: Spectral restorations, Pixons, Richardson-lucy, Jansson . ...

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• A Search for Variable Stars based on the HST-Fine Guidance Sensor Photometry
• Window-Based Applications
• Diplas et al.: Pixon Based Restoration of HST Spectra

... Credit Copyright: A. Dyer (Ground based image); NASA , ESA , and H. Weaver ( JHU APL ) (Hubble image) Explanation: Why did Comet Holmes brighten? The unexpectedly bright Comet 17P/Holmes continues to grace northern skies as a naked-eye addition to the constellation Perseus. ... Clues to the nearly million-fold brightness increase are therefore being sought in dramatic images of the enigmatic comet's central regions taken earlier this month by the Hubble Space Telescope . ... Forest and Sky . ...

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• Àñòðîíåò > Comet Holmes from the Hubble Space Telescope
• Hubble Telescope Maps Pluto
• Northern Mercury

... Up: Science Software Applications . ... It has extensions for creating GUI (Tk) and object-oriented ([incr tcl]) applications. Several Tcl-based tools that may be used for astronomical and other scientific applications have been created and are discussed. One example is ptcl , which registers PGPLOT functions as Tcl commands, creating a powerful interactive plotting package. ... Both programs use the same C code, Tcl commands, and [incr tcl] classes; only the GUIs are different. ...

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• The Co-Addition Technique Applied to Images of Galaxy Cores
• A System for Web-based Access to the HSOS Database
• Toolkit Based Extension of the SDSS Control System

... Often it is convenient to edit one visibility dataset (``the template''), and then to apply the flagging from this to another. For example, forming and flagging a ``channel-0'' dataset might be less painful than flagging a huge spectral line dataset. ... The task that can do these sorts of operations if uvaflag - it matches visibilities in the template and the input, and flags those visibilities in the input that are flagged in the template. ... Dataset to be flagged. tvis=multi.chan0 . ...

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• Step 2: Rms-based flagging
• Data Selection
• Data Selection CentralProcessor 0.11 documentation

... ISC Kosmotras . ... Baikonur Cosmodrome Yasny launch base Downloads . ... Dnepr LV (a converted SS-18 ICBM) with THEOS SC aboard was successfully launched from Yasny Launch Base several minutes ago. ... A new fuelling station and clean room 2 were used during the THEOS launch campaign at Yasny Launch Base. ... ISC Kosmotras' stock of orders contains signed contracts for five more launches scheduled for up to 2011 both from Baikonur Cosmodrome and Yasny Launch Base. ... 01.10.2008 . ... Dnepr Program...

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• Yasny launch base
• Preparation of Launch Campaign at Yasny Launch Base
• Kazakhstan delegation visits Yasny launch base

... Northern Eurasian GOFC/GOLD Fire Network Workshop in support of the Northern Eurasia Earth Science Partnership Initiative ( NEESPI ) . Satellite-based fire monitoring network in Northern Eurasia: Methods, Data Products, Applications . ... Operational systems of fire monitoring and fire situation in Northern Eurasia (Issues of system building and functioning, fire situation, available data and problems) . ... Marchenko N., Landscape-ecology methods for forest fires monitoring in Northern Eurasia. ...

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• Sirotin A.N., "Control Prolongation Operators by Annihilating Polynomials for
• Space Research Institute (IKI) Seminar
• Main research and development work completed in 2012 and ready for

... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Virtual Hosts . ... IP-based virtual hosting is a method to apply different directives based on the IP address and port a request is received on. ... As the term IP-based indicates, the server must have a different IP address/port combination for each IP-based virtual host . ... In the terminology of Apache HTTP Server, using a single IP address but multiple TCP ports, is also IP-based virtual hosting. ...

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• Atlas of Monte Carlo Models of Dust Extinction in Galaxies
• LASG - WWW based email readers

... Posts tagged ?model based? ... arXiv:stat.ME:0910.2585] . Variable Selection and Updating In Model-Based Discriminant Analysis for High Dimensional Data with Food Authenticity Applications . ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ...

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• Quota Monitor Menu Improvements
• The AstroStat Slog clustering
• SAO REU Summer Intern Program

... The Australian National University] [Department of Physics] [Paul Francis] [Main Roleplay Page] . These exercises are my attempt to adapt the technique of Problem Based Learning to the context of introductory astronomy and astrophysics classes. ... As students grapple with the puzzle, they are forced to learn the subject matter of the course. ... This exercise is designed for 1st year University students with a reasonable high-school background in Maths and Physics. ...

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• Designated Observatory Application
• IAU Commission #34 (Interstellar Matter)
• Introduction

... InformChaos Lab took part in CeBIT-2015 (Hannover, Germany) with "Active Ultra Wideband Wireless Networks". ... Lev Kuzmin received Dr.Sci. degree for his thesis "Wireless information transmission over UWB chaotic carrier" from IRE RAS. ... Artem Nikishov received Ph.D. degree from the Moscow Institute of Physics and Technology for the thesis "Generation of microwave chaotic oscillations in self-oscillating systems with several active elements". ... Our Products page is renewed. ... News | ...

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• High dimensional RC – oscillators of chaos - NOLTA-2001
• Research Activities of InformChaos Lab.
• Chaotic Processors and Unstructured Data Bases - NDCS-99

... IR-Light Emitters & Detectors . Russian High Technologies . ... Infrared detectors and light emitters are key components that are used for applications including radiometry, guidance, gas analysis, medicine etc. ... Devices are operating in spectral range of 1.0-5.0 um and have high efficiency. ... Light Emitters . ... Spectral response of PRX 27.. ... Applications . ... Among the features there are high speed response, high efficiency, wide temperature range. ... IR-Light Emitters and Detectors | ...

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• Creating Your Source Tree
• References
• Bad Pixel Correction

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

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• XMM-Newton SAS: Watchout Page
• Cross References between CCF Components and CAL Functions
• Contrasting optical and X-ray applications

... Public . Science . ... Science Users Information > Observing with ESO Telescopes > Policies and Procedures > Publications with ESO Data . ... Observing with ESO Telescopes . ... Public Surveys . Publications with ESO Data . ... Large Programmes . ... ESO/GTC Programmes . Public Surveys Programmes . ... Phase 1 Proposals . ... Public Surveys Phase 2 . ... Publications making use of ESO observational data must include the following statement in a footnote or in the acknowledgement: . ...

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• ESO - Newsletter October 2015
• The hidden fires of the Flame Nebula* | ESO
• The Effect of Continuum Variability on Spectral Indices

... The Russian Academy of Sciences, Federal Space Agency (ROSCOSMOS), the Ministry of Defense of the Russian Federation, the Ministry of Communications and Mass Media of the Russian Federation (MINCOMSVYAZ), Federal Agency on Technical Regulating and Metrology (ROSSTANDART), Federal Service for State Registration , Cadaster and Cartography (ROSREESTR), Scientific Council of the Russian Academy of Sciences on PNT problem and the ... Ipatov À. V. (Institute of Applied Astronomy of RAS) ? ...

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• NAY 2011 (Foreword)
• NAY 2010 (Foreword)
• IPA RAN

Modern requirements stipulated for the Networking Technologies . Brief Review of the problems under solution. ... Distributed Collapsed Back Bone Technology Advantages and shortcomings of different approaches. Switches against routers. ... Position at the IS market. Position of the modern high-speed technologies. ... Review of switching technology. Review of the switch market.Classification of switches. ... Big corporate networks implementing switching and routing technologies. ...

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• Intmins Project
• Preliminary Application for the MSS-09 Conference Participation
• Point of Agenda; Nov.1995 CONPAS workshop

... The Co­Addition Technique Applied to Images of Galaxy Cores W. W. Zeilinger Institut f˜ur Astronomie, University of Vienna, T˜urkenschanzstraúe 17, A­1180 Wien, Austria P. Crane, P. GrosbÜl and A. Renzini European Southern Observatory, Karl­Schwarzschild Straúe 2, D­85748 Garching, Germany Abstract. ... One may therefore take full advantage of the high resolution FOC images by co­adding them with (high signal­to­noise) ground­ based data. ... References Crane, P. et al. ...

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• http://www.stecf.org/conferences/adass/adassVII/reprints/gamielk.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/miebachm.ps.gz
• http://www.stecf.org/conferences/adass/adassVII/reprints/vieirae.ps.gz

... Dr. Denis Bulaev . ... Talks . ... Invited Talks . Anomalous spin relaxation in nanotubes (in Russian) . ITP Seminar , Kapitza Institute for Physical Problems RAS , Moscow, Russia, September 6, 2007. Spin qubits based on quantum dots in III-V semiconductors and graphene (in Russian) . ... Spin properties of electrons and holes in quantum dots (in Russian) . ... Electric dipole spin resonance and spin decoherence for heavy holes in quantum dots . ... Spin qubits in graphene quantum dots . ...

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• Laboratory for Spectroscopy of Molecular Structures
• XVI International Astronomy Olympiad, applications
• The XI Asian-Pacific Astronomy Olympiad, applications