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. ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...

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. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... Next: Step 3: Postprocessing to Up: How Pieflag works Previous: Step 1: Amplitude-based flagging . ...

... To celebrate, consider this grid of lunar eclipse pictures - starting in leap year 1996 and ending with February's eclipse - with the date in numerical year/month/day format beneath each image. ... Still, as the pictures are at the same scale, they illustrate a noticeable variation in the apparent size of the eclipsed Moon caused by the real change in Earth-Moon distance around the Moon's elliptical orbit. ... Publications with keywords: lunar eclipse . Publications with words: lunar eclipse . ...

... This paper presents the theory of the pixon, the fundamental unit of picture information, and its application to Bayesian image reconstruction. Examples of the applications of these methods to artificial and real data are presented. These examples demonstrate that pixon-based methods produce results superior to both pure Goodness-of-Fit (i.e. Maximum Likelihood) methods and the best examples of Maximum Entropy methods. Keywords: Bayesian Methods, Pixons, Image Modeling . Introduction . ...

... 2008 February 29 . Twelve Lunar Eclipses . ... To celebrate, consider this grid of lunar eclipse pictures - starting in leap year 1996 and ending with February's eclipse - with the date in numerical year/month/day format beneath each image. Mostly based on visibility from a site in Turkey, the 3x4 matrix includes 11 of the 13 total lunar eclipses during that period, and fills out the grid with the partial lunar eclipse of September 2006. ... About APOD | ... A service of: ASD at NASA / GSFC . ...

... 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. ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > 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. ...

NAUTICAL ASTRONOMICAL ALMANAC for 2005-2006 (in Russian) . ... The Institute of Applied Astronomy of the Russian Academy of Sciences submits the next issue of тАЬThe Nautical Astronomical Almanac for the years 2005-2006тАЭ (NAA-2) biennial. NAA-2 is based on тАЬ The Nautical Astronomical Yearbook тАЭ (NAY) also prepared by IAA RAS. ... The structure of тАЬThe Nautical Astronomical Almanac for the years 2005-2006тАЭ has not undergone essential changes in comparison with the previous issue of NAA-2. ...

... 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 . ...

... Mokhovaya st., 11, Moscow, 103907, Russia . ... Moscow Institute for Physics and Technology . ... 9, Dolgoprudny, Moscow region, Russia. ... 1999, Vol. ... In this report, we discuss an approach to construction of information searching systems based on dynamic chaos and intended to operate in computer networks, local area or Internet. Also we discuss an application of this technology to the problems of searching for information in unstructured text databases with natural-language requests. ...

... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

GTK+ / Gnome Application Development . ... Overview of a Gnome Source Tree . ... Almost all Gnome applications use the same build system based on the GNU tools automake , autoconf , and libtool . ... Beginning with this chapter and continuing throughout Part 2 of the book, a sample application called GnomeHello will be used to demonstrate Gnome features. ... Together, these tools are used to create a portable shell script called configure ; configure is distributed to users with your software package. ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... 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 . ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

O ptimal transport : T heory and A pplications . ... Names of participants of the OTARIE project are underlined . ... That code was never made public. ... WANN (Weighted Approximate Nearest Neighbors) is a library of C++ classes for weighted nearest neighbor search: given the set P of points p 1 , p 2 , , p N endowed with weights w 1 , w 2 , , w N and a query point q , find p k such that | ... WANN is part of a multipurpose library for numerical transport optimization developed in the OTARIE project. ...