The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The following are astronauts who are employed at NASA. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Astronaut . ... Acaba, Joseph M. 2004 . ... Aunon, Serena M. 2009 . ... Barratt, Michael R. 2000 . ... Burbank, Daniel C. 1996 . ... Cassada, Josh A. 2013 . ... 1998 . ...

Main Sections LabIR main page . ... Documentation . ... Special Sections Software Page . ... Local Giano documentation (Link to summay page) . ... Nics documentation: . ... Arnica documentation: . ... Arnica progress report : performance and technical results obtained in the last years at Tirgo , Not , and Vatt . ... Characterization of the detector (Arcetri Technical Report N^ 2/94)(1594k) . ... Manual for Arnica and LongSp controlling program Xnir (Arcetri Technical Report N^7/96)(6608k) . ...

slitless -- Extract a spectrum from a direct/GRISM image pair slitless image grism output PARAMETERS . ... A two dimensional direct image to be used to select an object. grism . A two dimensional GRISM image containing slitless spectra of objects present in the direct image. output . ... Toggle whether or not a background estimate is subtracted from the extracted object spectrum. mingood = INDEF . Pixels of the grism image with values smaller than this are ignored. maxgood = INDEF . ...

... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

Microsymposium 38, MS083, 2003 (A4 format) MERCURY: LOCAL VARIATIONS OF THE PHOTOMETRIC RELIEF. ... Because of trajectory and pointing angle constraints the planet could be observed from Mariner 10 only over a small range of phase angles between about 75o and 110o. Therefore the photometric investigations are restricted to measuring the distribution of brightness on the Mercurian disk. ... Raw versions of real-time processing pictures FDS 0000984 and FDS 0000986 were used (images 196 and 202). ...

Структура - это составной терм , построенный из функтора и последовательности одного или более аргументов , заключенной в круглые скобки : структура = функтор "(" термы_и_выражения ")" термы_и_выражения = [ термы_и_выражения "," ] терм_или_выражение терм_или_выражение = терм | ... An) является кортеж длины n+2, в первой позиции которого стоит специальная константа structure : . structure,f,A1,A2,.. ... Ссылки: выражение 6.2.2 , значение терма 3 , составной терм 3.2 , терм 3 , функтор 3 . ... 3.2. ...

... Tte tables of ionosphere and plasmasphere parameters are contained in a file param.tbl. ... Latitude Longitude Numbers of tables for (degree) (degree) Month Wm=10 Wm=100 Wm= 150 80 30 March 1 - 3 397-399 793-795 80 150 March 4 - 6 400-402 796-798 80 270 March 7 - 9 403-405 799-801 60 30 March 10 - 12 406-408 802-804 60 150 March 13 - 15 409-411 805-807 60 270 March 16 - 18 412-414 808-810 40 30 March 19 - 21 415-417 811-813 40 150 March 22 - 24 418-420 814-816 40 270 ...

Next: Amorphous magnesium silicate Up: Examples of data contained Previous: Examples of data contained . ... We have used the infrared optical constants of forsterite contained in the database for calculating the absorption cross sections of spherical and non-spherical particles in the Rayleigh limit (see Fig. The spectra are obtained by averaging the cross sections calculated for the three different crystallographic directions. ...

Data package . 079.D-0645A / 2007-05-15 . ... HELP . ... Data package cover sheet . This page is the portal to your data package. Any questions about these data should be sent to ESO's User Support Department (usd-help@eso.org). ... The following links help you to navigate and understand its content and its structure: . ... this is the version applicable to your package; the version on the web may have evolved in the meantime) . ... archive file list . ... archive . ...

Large-Scale Structure of the local Universe with INTEGRAL observatory >200-300 , . ... It is now widely accepted, that practically every galaxy in the local Universe has supermassive black hole and some of these black holes are AGNs. ... 136 ( ) 49- . ... The map of the survey is shown on the left. ... Using Hard X-ray all-sky survey such important properties of nearby Universe as energetics of accretion to the supermassive black holes and large-scale mass distribution of matter were studied. ...

... Science . ... The Local Sphere of Influence (LSI) survey is a deep near-IR (H-band) survey of galaxies residing in the Local Sphere of Influence ( D < 10 Mpc). The images with a typical surface brightness limit 4 mag fainter than 2MASS (24.5 mag arcsec -2 < SB lim < 26 mag arcsec -2 ) have been obtained with IRIS2 on the 3.9~m Anglo-Australian Telescope. 11 of the observations have resulted in non-dections or the images were saturated by foreground stars. ... Copyright 2007 Emma Kirby. ...

Physical Properties and Internal Structure of Near-Earth Objects . ... The review contains the most recent data on near-Earth objects such as their sizes and densities, rotation and shapes, taxonomy and mineralogy, optical properties and structure of their surfaces, binary systems among the NEOs and internal structure of asteroids and comets constituted the NEO population. ... The European space mission ISHTAR, NEO 4660 Nereus, NEO 5797 Bivoj. ...

... First of all I would like to mention about the vanishing cohomology associated to the Milnor fibre of the isolated hypersurface singularity. We review the results on the Milnor number (local and global) by Kouchnirenko (Inventiones math. 32, No1 (1976), 1-32) and then roughly sketch the formula of Hodge numbers given by Danilov (FAA, 13, No.2(1979),32-47). ... The Hodge structure of the cohomology of an affine hypersurface in an algebraic torus will be discussed. ...

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? ...

Next: Galactic Gravitational Wave Background Previous: Structure of the Galaxy . We will call ``transparency'' of the background the ability of the observer to detect a gravitational wave signal other than that produced by binary systems, by means of adjusting variable parameters of an imaginary GW detector (namely, its angular resolution and frequency band), so that less than one occasional binary system falls into the detector's beam at a given frequency in a given direction. ...

TclActor is a set of classes that allow one to write an actor for the 3.5m control system. ... Thus, to the extent that the underlying hardware controllers support it, an actor based on TclActor can execute multiple commands at the same time. ... Commands must be in the following format: [cmdId [msgId]] [verb [arguments]] where: . ... The device code tends to fall into several categories: code to support executing commands, code to handle replies and code to represent the internal state of the device. ...

... S-6 Xray Sun . ... The Sun . S-3.The Magnetic Sun . ... Optional: Quantum Physics . Q1.Quantum Physics . ... Atoms . ... Q5.The Atomic Nucleus . ... S-6.The X-ray Sun . ... In studying atoms, precise information seemed to be contained in the wavelengths of spectral lines , of sharply defined colors emitted by atoms in a glowing gas, each of which associated with a specific kind of atom. ... Or else, return to section #6 on physics related to the Sun: (S-6) Seeing the Sun in a New Light . ...

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? ...

... A.M.Fridman, O.V.Khoruzhii, V.V.Lyakhovich, V.S.Avedisova, O.K.Silchenko, A.V.Zasov, A.S.Rustorguev, V.L. Anafanasiev, S.N. Dodonov, J.Boulesteix, . Spiral-vortex structure in gaseous disks of galaxies, Astrophysics and Space Science, 1997, (in press). ... Prediction and discovery of new structures - giant anticyclones - in disks of spiral galaxies, JENAM-97, Thessaloniki,Greece,2-5 July, 1997, Late abstracts,p.11 . Back to Project Vortex. ...

SINGULAR POINTS IN THE SOLAR CHROMOSPHERE . ... In the structure of the solar chromosphere, containing information on the configuration of the magnetic field, we have found and identified all the main types of the singular points ( see Fig. 1 ), which are known as inherent features of the 2-D vector field. ... The main types of the singular points are the node, the focus, the center, and the saddle. ... Singular point of the focus type in the solar chromosphere. ...