... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... BTA and RATAN-600 are largest optical and radio telescopes in Russia. ... Antenna of RATAN radio telescope consist of 576-m circle of 895 elements (2 x 11.5 m), which could use as four independent sectors (225 elements) of that reflector (named: North, South, West and East). Four different feed-cabines (N1,2,3,5) with secondary mirrors could simulteniously collect radio emission from these four sectors and be used in programs of Continuum , Spectral and Solar observations. ...

The problem of measuring the surface accuracy of a large reflector antenna is not simple. ... Using the Fourier relationship connecting the shape (and phase) of the radiation pattern and the antenna illumination function, a measurement of the former can be used to infer the latter. ... We have performed three set of measures on the CNR-IRA 32-m radio telescope (image) . 1988: Measurements using Misell phase retrieval algorithm, and the 22 GHz Orion water vapor maser as a reference source. ...

... The Shuttle Launches an Inflatable Antenna . ... 25.05.1996 . ... Credit: STS-77 Crew , Space Shuttle Endeavor , NASA Explanation: High above the Earth the Space Shuttle Endeavor launches a new type of instrument - an inflatable antenna. The officially designated Inflatable Antenna Experiment was released Monday, May 20th, as part of a Spartan satellite - which contains many scientific experiments. ... Publications with keywords: space shuttle . Publications with words: space shuttle . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

Research into activity on the Sun by astronomers from Armagh Observatory, lead by Professor Gerry Doyle , have over the last six years used data from a spacecraft called SOHO (SOlar and Heliospheric Observatory). ... In late June a problem was detected in the satellite's high-gain antenna, which is used to transmit the large amounts of data from SOHO's scientific observations to Earth. This was bad news not only for Armagh astronomers but for solar physicists world-wide. ... SOHO News . ...

... 18-1 74 40.5 0.52 Cas A . 18-1 75 38.5 0.49 Cyg A . ...

... Previous: Time Series Analysis of Unequally Spaced Data: Intercomparison Between Estimators of the Power Spectrum . ... The aperture synthesis technique well known in radio astronomy is adapted to the spectral analysis of the time series. ... Analogously, when the time series is given at all points of some interval or at time points regularly spaced within the interval, the evaluation of the periodogram can be made quite easily. ... Now we apply this idea to time series analysis. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . 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 Publication SSRT - Siberian Solar Radio Telescope . ...

... BOSCAM TS351 2Km Range FPV Transmitter 5.8G 200mW Audio Video Transmitter with Antenna . ... FPV Equipments : Transmitter . ... Package Contents : 1 x Transmitter, 1 x Antenna, 1 x AV Cable, 1 x Power Supply Cable . ...

... Program of the Course of Radio Astronomy . Moscow State University , Physics Department , Astronomy Division , 4 th year, 60 hours in total) . ... Molecular maser emission. ... The emission of the interstellar neutral hydrogen. ... Pacholczyk, A. G. Radio Astrophysics, W. H. Freeman & Co., ... Frontiers of Astrophysics, Avrett, E. H., ed., Harvard University Press, Cambridge, Mass., ... Kaplan, S. A., Pikelner, S. B. The Interstellar Medium, Harvard University Press, Cambridge, Mass., ...

... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Final antenna delivered to ALMA . ... The antenna is the 66th and final antenna to be delivered to the observatory. ... This delivery of the last antenna now completes the ALMA antenna construction phase and provides all 66 antennas for science use, marking the beginning of a new era of discoveries in astronomy. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Satellite data ] . ... PRICE of Software products for HRPT-NOAA data acquisition and processing (PC / Microsoft Windows) . ... free . ... Raw HRPT data processing: browsing, fragmentation, geo-location, storing to TDF format. ... 380 . ... XV_HRPT data acqusition . Software package for HRPT data acquisition. ... Source code template for development of XV-compatible image/data processing programs in MS-Windows. ... XV_HRPT data processing . Software package for processing of HRPT data. ...

... Telescopes . ... Diameter of circular antenna . ... Number of antenna elements . ... Geometrical area . ... Effective area of full circle . ... Wavelength range . ... Frequency range . ... 2 arcsec . ... Flux density limit . ... Absolute brightness temperature limit . 0.050 mK . ...

Image analysis of the VLBI experiment INTAS99.4 . PI: I. Molotov (GAO, Russia) . Analyst: A. Pushkarev (GAO, Russia; CrAO, Ukraine) . ... Frequency: 1.66 GHz . ... Antennas and their characteristics at 1.66 GHz . ... Bear Lakes (Russia) . ... Svetloe (Russia) . ... Pushchino (Russia) . ... CALIBRATION . Amplitude Calibration . Phase Calibration . ... 0420-014 . ... Quasar . ... 0420-014.gif . ... 0420+022 . ... 0420+022.gif . ... 0552+398 . ... 1308+326 . ... 1345+125 . ... 1803+784 . ...

... Archives . ... ArXiv] A Lecture Note, June 17, 2007 . ArXiv] Solar Cycle, June 18, 2007 . Jun 18th, 2007| 05:08 pm | ... One of arxiv/astro-ph preprints, arxiv/0706.1703v1 discusses correlation between galactic HI and the cosmic microwave background (CMB) and reports no statistically significant correlation. ... Are these correlation studies truly statistical science? ... Therefore, I have been doubting what is so important about correlation in astronomy. ... Chandra Blog . ...

... Radio-astronomy - the First Branch of Non-Optical Astronomy. Mechanismes of Radiation Generation by Astronomical Bodies. Laws of Blackbody Emission for R-Range. ... Characteristics of Radiation: Spectrum, Polarization. ... Conception of Antenna Temperature. ... Radio-astrometry: Methods of Determination of Radio Sources' Coordinates and Their Measuring by Interferometers. ... Morphology and Basics of Solar Radiation Physics: the Main Component, Slow Changing Component, Sporadical Radiation. ...

Cloud cover and water vapor observed at Oma site,Tibet W ang Hong-shuai (National Astronomical Observatories of China) Kislovodsk 8.10.2010 Wang Hongshuai ­ Kislovodsk ­ Oct.2010 2 2008.11 Oma Site 40 m CT 2 tow er 4.5 m antenna Satellite communication w eather station 10m tow er SBIG seeing m onitor DIMM seeing dome MIR cloud m onitor R en ew al p o w er supply Wang Hongshuai ­ Kislovodsk ­ Oct.2010 3 PWV<0.5 5 .0 % 1 0 .1 % 8 .1 % Percent. ... 05 8.3% Percent . ...

... History . ... The group for study of galaxies and cosmology has been created in April, 2011 and unified researchers from the laboratory of radio astrophysics (O.V.Verkhodanov, N.N.Bursov, N.V.Verkhodanova), the laboratory of antenna measurements (E.K.Maiorova) and researches from the radio astronomical sector (Yu.N.Parijskij, T.A.Semenova, V.A.Stolyarov) inside the laboratory of radio astrophysics by the order of the director of SAO according to the decision of the SAO Scientific coincil. ...

... Kraftwerk Radioactivity Is in the air for you and me Radioactivity Discovered by Madame Curie Radioactivity Tune in to the melody Radioactivity Is in the air for you and me @ SONG : Radioland Drehen wir am Radiophon (=We are turning dials of the Radio ) Vernehmen wir den Sendeton (=We are hearing the sound of transmission) Durch Tastendruck mit Blitzesschnelle (=By pressing a button fast) Erreichen wir ...