... 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...

. Some commands accept multiple options. These can be grouped together after a single hyphen: command -abc argument . A small number of commands require each option to be given separately. Check the command synopsis for a command to see how a command requires its options to be given. An option that takes an argument, such as the name of a printer or a filename is given separately. Examples .

... Bojan Nikolic web pages (r. 329) . ALMA . ... These errors are due to the refractive effects of the Earth?s atmosphere, specifically due to the (tropospheric) water vapour. ... Making use of information on baselines this long will require very accurate calibration and correction of atmospheric phase errors. ... The design of the ALMA phase correction system is summarised in Nikolic et al 2013 . Introduction to phase correction for ALMA . ALMA Goals . ALMA Phase correction strategy . ...

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? ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

. Language [RU/EN] Search: . Home . UP . Research . Projects . Services . Info . News . Events . Personal . Archive . Ionosphere and radiowave propagation: structure . The main page . Information . Publications: . 2011 - 2015 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2000 - 2004 . 1995 - 1999 . Participation in International symposiums and conferences: . 2013 - 2015 . 2011 - 2012 . 2009 - 2010 . 2007 - 2008 . 2005 - 2006 . 2002 - 2004 . N.V. Pushkov . 09/04/2016 23:52 MSK . webmaster@izmiran.ru .

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 . ...

... As the list of extra-solar planets orbiting sun-like stars ( exoplanets.org/planet_table.shtml ) continues to grow, more and more members of multiple-planet systems ( exoplanets.org/mult.shtml ) are being discovered. ... A planet doesn't actually orbit a star; rather both orbit a point between the two objects. ... Figure 3-Two planets in orbit around 47-Ursa Majoris produce more complex variations in the Doppler-shift data. ... Could these be examples of "The Music of the NEW Spheres"? ...

... In the table given at a separate sheet enumerate in growing order (from 1 to 13) the size and the mass of each object: Milky Way Galaxy, Andromeda Galaxy, Neutron star, Electron, Mercury, The first satellite "Sputnik I", Venus, Pluto, Proton, Red dwarf, Black cat, White (Polar) bear, the Sun. ... Ashulia's coordinates are 23°53.6' N, 90°19.8' E. Draw pictures explaining your solution. ... The solution has to include an artistic picture with an image of the Bengal Tigerastronomer observing the star. ...

Peremennye Zvezdy ( Variable Stars ) 32 , No. ... Photometric CCD observations of the pre-main-sequence Herbig Ae star WW Vul on separate nights during 2007-2011 are presented. ... Relative magnitudes of WW Vul were measured with respect of the comparison star. ... From top to bottom: (a) one night of observations of WW Vul: differences variable - comparison star and comparison star - check star; (b) de-trended light curve; (c) phase curve for the season 2011 with the first frequency, 9.34 d . ...

The South Pole Telescope (SPT) and the Atacama Pathfinder Experiment (APEX) joined together in a Very Long Baseline Interferometry experiment for the first time in January 2015. The two telescopes together observed two sources the black hole at the center of the Milky Way Galaxy, Sagittarius A*, and the black hole at the center of the nearby galaxy Centaurus A and combined their signals to synthesize a telescope 4,300 miles (7,000 kilometers) across (yellow line). ...

The AstroGuide . ... AstroGuide | ... News | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The Amateur Observers' Society of New York was established in 1965 to bring together people who have a love for astronomy and wish to share it with others. ... Listed Since October 22, 1998 . ... Web Site . ... Web . www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

PENTICTON SOLAR RADIO FLUX VALUES (from SGD Explanation of Data Reports) Daily Solar Flux Values - Penticton -- Daily measurements of the integrated emission from the solar disc at 2800MHz (10.7cm wavelength) have been made by the National Research Council of Canada since 1947. ... The data are tabulated in two forms: the "observed flux" (S), and the "adjusted flux" (Sa). ... The "observed flux" values are useful in ionospheric physics and other terrestrial consequences of solar activity. ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... A brief description of your research aims: . To construct new AGB evolution models using updated opacity tables and reaction rates and comparing with observations where there has been two distinct populations observed in the halo separated by alpha elements. ... A brief description of the nature of the computations to be performed (resources required, interactive/batch job, i/o requirements, single processor/parallel jobs, scalability): . ... COALA : Universe Galaxy AGN Star Planet ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

... Thomson's multiple window method of spectral estimationthomson provides a very good estimate of the power spectrum by measuring the energy contained within a collection of rectangular shaped frequency intervals. ... Often, much of the fine structure of a spectral estimate is due to noise. It should be stressed that while other methods of spectral estimation (such as the Welchoppenheim method) exist, the Thomson method is particularly noteworthy for its precisely defined rectangular frequency bins. ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

Physica C 372­376 (2002) 355­359 www.elsevier.com/locate/physc Antenna coupled planar arrays of Josephson junctions M. Tarasov a a,b,* , E. Stepantsov a,c, T. Lindstro a, A. Kalabukhov om Z. Ivanov a, T. Claeson a a,d , MINA, Department of Physics, Chalmers University of Technology and Gteborg University, Gothenburg S41296, Sweden o b Institute of Radio Engineering and Electronics RAS, Mokhovaya 11, Moscow 101999, Russia c Institute of Crystallography RAS, Lenensky Prosp. ... Fig. ...

. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>