... NASA's newest Great Observatory, the Chandra X-Ray Observatory (CXO) -- formally known as the Advanced X-Ray Astrophysics Facility (AXAF) -- launched on July 23, 1999 and represents such an advance. ... Hughes Danbury Optical Systems (HDOS), now Raytheon Optical Systems Incorporated, figured and polished the x-ray optics; Optical Coating Laboratory Incorporated (OCLI) coated the polished optics with iridium; and Eastman Kodak Company (EKC) mounted and aligned the optics and provided the optical...

... Forum . ... Recent Topics . ... MAO main . Info . Fwd: two postdoc positions available . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(пўпµя…пїпѕпґпґпµяЂп¶пєп°(п¤пѕяЂяѓпј)) . ... Powered by Kunena Forum . ... MAO NASU . ...

... IDL procedure to display ; a) a region of spectrum , together with a fit , if supplied, ; b) positions and relative strengths (gf or W_lambda) of lines in ; common atomic spectra may be marked in the lower panel. ; c) lines of sleceted atoms are identified in the top panel ; ; Command arguments: ; specfile - character string - name of file containing spectrum (and fit ) ; assumed to be x,y file with 3- ... Assesses lines in linelist by the strength values "listfr". ...

Why are there different versions of CIMA? Which version of CIMA should I choose? ... There is no CIMA log in my project directory --- what happened? ... If You are a normal, happy observer, You should choose the CIMA version with the highest version number, since that version contains the latest improvements and bug fixes. ... This means that programs like the data quick-look display and various ALFA instrument displays all exist in several versions just like the CIMA observing session itself. ...

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

. Computer Ephemeris. Elements of osculating planetary orbits. Explanations. Each row contains at 0h of Time Dynamical Terrestrial of specified date in system of mean equator and ecliptic J2000.0 the ecliptic osculating elements of heliocentric orbit: inclination of orbital plane (degrees), longitude of ascending node (degrees), argument of perigelion (degrees), semimajor axis (astronomical units), mean motion (degrees per day), eccentricity (dimensionless), mean anomaly (degrees).

... Science . ... Science Users Information > Science Publications > Science Announcements > Processed Calibration Files for VLT instruments Now Available . ... ESO Data . ... ESOReflex data reduction workflows can be used to customize the generation of the processed and co-added calibration frames and to apply them to the science files. A detailed step-by-step guide on how to automatically associate the appropriate calibrations, raw or processed, to the science files of interest is available . ...

... Previous: Ground Tracking Station (GTS) Products . ... GRT Log File . ... GRT Gain Curves . ... What: Co-observing GRTs will each generate a log file identical to those for ground-based VLBI experiments. ... Where: Files are placed by GRTs on their regional server ( Regional Servers for GRT logs etc ) in the sub-directory named for the month and year (e.g. may97 ) below the sub-directory named gps . ... Where: Files are placed by GRTs on their regional server ( Regional Servers for GRT logs etc ). ...

... For the first balloon flight of the Nuclear Compton Telescope (NCT) we have simultaneously reduced lowenergy background and enabled hard X-ray imaging by enshrouding the top of the instrument in a tin shield (bottom had BGO shielding), with part of the shield having strategically placed holes -- a 10% open coded aperture mask working up to 80 keV in conjunction with the finely pixellated double-sided Ge strip detectors. ... Key words: Compton telescope, coded mask, hard X-ray imaging, NCT. ...

... На самом деле, когда я писал эту -- -- программу, мне хотелось потренироваться в проведении интервью по -- -- правилам SADT методологии. ... Логическое описание блоков SADT модели. ... Основное предназначение этих классов - хранить перечень посуды и -- -- инструментов, соответствующих различным блокам SADT модели. ...

... Several HTML elements, most notably the A element , may contain an attribute which takes a URL as value. URLs, Uniform Resource Locators, are addresses of Web documents. More generally, URLs can be used on the Web to refer to "objects" on the Web or in other information systems. ... http . a Web document (to be accessed using Hypertext Transfer Protocol, HTTP ) . ... file . ... In particular, the specifications say that within a URL only a limited set of characters can be used as such : . ...

... A revised machine-readable source list, with improved source positions and no redundancy is now available from MRAO by ftp , or from the CDS or SAO catalogue archives. Hales, Waldram, Rees & Warner 1995, MNRAS, 274, 447. Please consult and cite the original survey paper by Rees as the primary reference for this survey, with the Hales et al. source list as a supplementary revision - viz refer to: ``The revised Rees 38-MHz survey (Rees 1990, catalogue revised Hales et al. 1995).' ...

From XEphem running the Soft03Cmt database of 20121002, for the date and time of the observation: RA: 08:16:04.25 Dec: 27:48:13 2012-09-30 UT 09:45 UTC Measured: RA: 08:16:04.4 Dec: 27:48:12.9 Header listing for HDU #1: SIMPLE = T / This is a FITS file BITPIX = -32 / NAXIS = 2 / NAXIS1 = 4341 / NUMBER OF ELEMENTS ALONG THIS AXIS NAXIS2 = 4355 / NUMBER OF ELEMENTS ALONG THIS AXIS EXTEND = T / This file may contain ...

... Equinox of object coordinates BJ = 18.87 / bJ magnitude UMBJ = -0.69 / u - bJ colour BJMR = 0.22 / bJ - r colour NOBS = 1 / Number of 2dF observations available IS_ BEST = 'TRUE ' / TRUE if this file contains the best 2dF observa DATEBEST= '24/09/00' / Date of best 2dF observation (DD/MM/YY) ID_ BEST = 'QSO ' / ID from best 2dF observation QUALBEST= 11 / Data quality flag from best 2dF observation Z_ ...

All stars derive their energy through the thermonuclear fusion of light elements in to heavy elements. High temperatures are required so that the mutual electrostatic repulsion of the protons in each fusing atomic nucleus is overcome. ... Elements with more protons in their nuclei require higher temperatures. ... This sequence is now shown in the animation below. ... First Step of the Proton-Proton Chain Narration . Second Step of the Proton-Proton Chain Narration . ...

... We have compared visualized fields of GSC and USNO A1.0 catalog with unpublished photographic finding charts that were sent by L. Plaut to the compilers of the GCVS. ... 7-15 A9 --- GCVS GCVS or NSV name 17-25 F9.4 --- GSC GSC number 26 A1 --- NoteFlag *Nonstar (GSC) flag 28-29 I2 h RA2000GSC.h Hours RA (GSC), equinox 2000.0 31-32 I2 min RA2000GSC.m Minutes RA (GSC), equinox 2000.0 34-38 F5.2 s RA2000GSC.s Seconds RA (GSC), equinox 2000.0 40 A1 --- DE2000GSC.- ... Plaut, L., 1966, Bull. ...

Databases (NSDC) of the Natural Planetary Satellites. Sources and references of the data . NSDC: Database of astrometric observations of Natural Planetary Satellites . ... The observational data are taken from various sources: . ... The catalogue of observations of the Martian satellites published by Morley T.A. A catalogue of ground-based astrometric observations of the Martian satellites, 1877-1982, Astronomy and Astrophysics Supplement Series. 1989. vol. 77. n. 2. p. 209-226. ...

... ---------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- catalog .dat 269 36020 Revised NLTT Catalogue and 1st Supplement Description of catalog columns (see Paper II for details): -------------------------------------------------------------------------------- Summary Information 1) NLTT number (drawn consecutively from 1 to 58,845) 2) binary component 3) RA ( 2000 ), epoch 2000 ( ...

The first near-infrared IFU spectrograph was the 3D instrument , constructed by the Max Planck Institut f r Extraterrestrische Physik. ... An effective slit width of 0.1" was chosen in order to probe to spatial scales approaching the 0.07" diffraction-limited image core size expected from the Gemini adaptive optics system at 2.2 microns while maintaining an acceptable field-of-view. ... The field mirror array then feeds the spectrograph collimator mirror (seen at left in the above figure). ...

... Basics of Group Theory Definition 1. A group G is a (finite or infinite) set of elements g1 , g2 , g3 , . ... Definition 2. ... Each element of a finite group may be represented as a power or product of powers of a certain finite number of elements cal led generators of the group. ... Point Groups Any transformation which brings a body into coincidence with itself can be decomposed into elementary transformations: 1) rotation about an axis, 2) reflection in a plane, 3) translation by some vector. ...