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. ...

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. ...

... 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 . ...

... 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. ...

... 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 . ...

... ASAP contains flexible data selection. Data can be selected based on IF, beam, polarisation, scan number as well as values such as Tsys. ... Selection is based on a selector object. This object is created and various selection functions applied to it ( set_ifs , set_beams etc). The selection object then must be applied to a scantable using the set_selection function. ... The selection can then be reset and all spectra are visible. ... Select by source name. ... Select data based on Tsys. ...

... 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. ...

... 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. ...

Astronomy Picture of the Day . ... But new results based on data from the Mercury orbiting MESSENGER spacecraft indicate that it does have substantial water ice in permanently shadowed regions within craters near its north pole. ... Highlighted in yellow in this map based on projected MESSENGER images , radar bright regions are seen to correspond with floors and walls of north polar impact craters. Farther from the pole the regions are concentrated on the north facing crater walls. ...

... 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...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 April 29 . 3D View Of Jupiter's Clouds . Credit: Galileo Project , JPL , NASA . ... This 3-dimensional visualization presents a simplified model view from between Jovian cloud decks based on imaging and spectral data recorded by the Galileo spacecraft . ... The upper cloud layer is haze a few tens of miles thick. ... About APOD | ...

NAUTICAL ASTRONOMICAL ALMANAC for 2011-2012 (in Russian-English) . Preface . The Institute of Applied Astronomy of the RAS (IAA RAS) submits the next issue of ?The Nautical Astronomical Almanac for the years 2011-2012? biennial (NAA-2). ... There are some auxiliary tables for interpolation and calculation of altitude and azimuth in NAA-2. Calculations of ephemerides in NAA-2 for 2011-2012 have been executed by the following researchers of Laboratory of Astronomical Yearbooks of IAA RAS: . ...

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. ...

... 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. ...

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 ...

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? ...

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. ...

... 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: . ...

... The use of Astronomy in Research Based Science Education (RBSE), an NSF-funded Teacher Enhancement program, invites applications from middle- and high-school teachers interested in developing a research component for their science classes within the multi-disciplinary context of astronomy. ... 40 Years of Students Tracking Asteroids . ... Asteroids Finally Hit Project CLEA . ... LodeStar is a $32.8 million project dedicated to astronomy-oriented science education and research. ...

TN246 Z180-Based Boards and Changes to the Serial EEPROM The slower write speed of serial EEPROMs (manufacturer part # 24LC04B) used on Z180-based boards may cause problems if you use an external EPROM burner instead of directly compiling your application to the board. ... The determining factor is if your BIOS bin file has a patch that compensates for the slower write speed of the 24LC04B EEPROM. ... There is no problem if you are using the BIOS bin file that came with your new board. ...