The information path to prepare, perform and reduce a radioastronomical observation, using the Arcos correlator , is schematized in the figure: . The programs reside part on the computer network of the Arcetri Observatory, and part at the Medicina Radio Telescope . All programs running at Arcetri are written for a Sun workstation, and are public domain software, available upon request. Programs running at the telescope are written for a PC with DOS/Windows (or Linux).

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

USING THE CORRELATION BETWEEN ISGRI SURVEY RESULTS AND OTHER CATALOGUES TO AID SOURCE IDENTIFICATION John B. Stephen, A. Malizia and L. Bassani IASF-INAF, Via P. Gobetti 101, 40129 Bologna, ITALY, E-mail: stephen@iasfbo.inaf.it ABSTRACT In order to help in the identification of INTEGRAL/ISGRI sources, we have developed a software package which allows a rapid and detailed cross-correlation to be performed between various source catalogues. ... We show below some preliminary results from this analysis. ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Research results on fast active processes General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases ... Distribution of the recorded spikes in duration . ...

... Chapter 1. ... Problems of observational radio cosmology (6) . ... Analysis of radio astronomical data (32) . ... Data analysis system (33) . ... Actuality, goals and results to depend (45) . ... Interactive processing of continuum radio spectra of radio sources (72) . ... Creation of the astrophysical catalogs data base CATS and its application for selection and analysis of radio galaxy samples (112) . ... Data and methods (176) . ... Results of analysis of known radio galaxies data (179) . ...

... The VSOP Survey Continuum Source List . The radio sample for the VSOP continuum survey was defined to include all extragalactic radio sources with: . a total flux density at 5 GHz, S>=1.0 Jy . ... The sample also included all sources in the sky with a 5 GHz flux density S>5 Jy, regardless of spectral index and galactic latitude. ... The source would then be included in the VSOP sample (three of the sources were found with a flux density above 1 Jy and added to the sample). ...

home education > resources . ... Selected Resource Guides . ... Introductory . ... Articles on Education from Mercury Magazine Hunt down some good ideas and resources in these archived articles from the "Education Newswire" and "Black Holes to Blackboards" departments of our membership magazine, Mercury . ... Selected Resource Guides Gather some great background reading from these annotated astronomical resource guides: . ... Environmental Issues and Astronomy: An Introductory Resource Guide . ...

The Astronomy Net . Articles | AstroGuide | ... Forums . ... H ere you can find resouces to help understand perhaps the grandest of all sciences. ... Upcoming Sky Events . ... This site includes lists of manufacturers, vendors, software, etc. organized in the AstroGuide to help when you are looking to purchase your tools. ... Astronomy Articles . ... Are you interested in writing an article for the Astronomy Net? ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... OH, = 18 cm Nancay Radio Telescope, OH 18-cm line observations , since 1969 F, Jy 6 4 2 0 0 -1 -2 0 -1 -2 0 -2 -4 -6 30 40 50 1612 MHz I HU Pup August 5, 2009 1665 MHz 4 2 0 0.5 0.0 - 0.5 -1.0 -1.5 1.0 0.5 0.0 - 0.5 4 3 2 1 0 -1 1667 MHz I I 1.0 0.5 0.0 0.5 0.0 22-meter telescope, Pushchino Radio Astronomy Observatory H2O F, Jy 1.0 0.5 0.0 0.4 0.2 0.0 -0.2 -0.4 0.4 0.2 0.0 -0.2 -0.4 -0.6 0.6 0.4 0.2 0.0 -0.2 -0.4 -70 -60 -50 -40 -30 -20 -10 0 Mira-type star R Leo. ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelTextureCache.hpp . ... 62 љ TextureBackend* backend; . ... 85 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 132 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 148 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 163 љ "Texture in cache has the same name as but is not specified texture" ); . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... Julian Date Flux Densities (mJy) Julian Date Flux Densities (mJy) 2440000:0 A1 A2 B C 2440000:0 A1 A2 B C 8930.9968 153.8 134.6 59.8 22.6 9021.6846 154.0 137.0 59.0 22.9 8939.7717 163.7 146.0 66.1 22.9 9024.6766 151.4 134.6 58.4 22.1 8940.8936 153.2 135.8 59.2 22.6 9030.5334 156.7 139.1 59.0 22.4 8944.7380 161.7 142.2 63.7 23.1 9032.6650 151.8 136.5 57.7 22.6 8951.8637 148.4 131.3 58.3 21.7 9036.7067 155.1 137.1 58.8 ...

Peremennye Zvezdy", . ... Star Name: . GSC 3710-00312, USNO-A2.0 1425-04252279 . ... Variability type: . ... USNO-A2.0 1425-04252279 is located at the distance of 15?.7 from the X-ray source 1RXS J031707.9+572942, which is larger than the position error of the source (12?), but its hardness ratio HR1 = 0.03 0.29, typical of chromospherically active stars, and its character of variability allow us to assume that the star is related to the X-ray source. ... Eclipsing variability . Sine wave 1 . ...

... Home Education Astro Answers Astro Answers ? The Big Bang, Inflation, and Latest Results from BICEP2 . ... Astro Answers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Optical characteristics of non-spherical scatterers (definitions) . Most popular scatterer models and their parameters (a table) . ... Minsk collection of references to over 8000 light scattering papers (available partly) . ... Light scattering codes (incl. our codes with results of test runs) . Benchmarks in optical properties (in tabular form) . Dependence of optical properties on scatterer parameters (a graphics library) . ... Miscellaneous (incl. other similar databases) . ...

... PUL2 catalog contains original absolute proper motions of 59646 stars in 149 fields with galaxies. ... Mean errors of relative proper motions in PUL2 catalog is 5.5 mas/year. ... The external mean error of one relative proper motion of a bright star of PUL2 catalog is 9 mas/year for both of coordinates. ... After issue of UCAC2 catalog, we decided to improve accuracy of proper motions, using Pul-3 coordinates (of 1950s) as the first epoch, and UCAC2 coordinates as the second epoch. ...

... There is no question about the source of ionospheric plasma , since it is created from the ambient neutral atmosphere by ionization. However, the source of magnetospheric plasma is a much more complicated question: although it seems obvious that both solar wind and ionosphere feed it, the relative importance of these two sources is unclear. ... Protons (H + ) are the primary ions in solar wind and one of the major components in ionospheric outflows, and thus not good indicators of their source. ...

This module provides support for dynamically configured mass virtual hosting . ... Source File: mod_vhost_alias.c . ... For simple name-based virtual hosts you might use the following directives in your server configuration file: UseCanonicalName Off VirtualDocumentRoot /usr/local/apache/vhosts/%0 . A request for http://www.example.com/directory/file.html will be satisfied by the file /usr/local/apache/vhosts/www.example.com/directory/file.html . ... Module: mod_vhost_alias . ...

... Trouble Reports . Anonymous FTP . APO35 Mailing Lists . ... These are distributed to people at each member institution, including someone who is reponsible for making the information available to other people. The trouble reports presently exist as paper in a notebook. ... Various files are distributed via anonymous ftp, including the current version of Remark, drawings, and some outdated documentation that has not been transferred to WWW. The address is: ftp.apo.nmsu.edu. ...