Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

SLIDE 1 Coherent beam­beam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchro­betatron modes in the beam­beam system, and thus a head­tail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchro­betatron mode tunes on the beam current for equal electron and positron bunch intensities. ...

... Sun's ecliptical positions. Explanations. Each row contains at 0h of Time Dynamical Terrestrial: month, day , day of the week, julian day number at beginning of day (only last three digits is given, add head of column to form correct number ), longitude in system of mean equinox of date (degrees, minutes, seconds ), two latitudes (the first for mean equinox of date and the second for mean epoch of year; seconds ), radius-vector (astron. units), precession in ...

... Head of the Laboratory of Information and Navigation Systems Radioastron Project . Laboratory . Information & Navigation Systems (INS_Lab) . ... Astro Space Center . ... 7 (095) 333 2312 . ... 7 (095) 333 2378 . ... yupon@asc.rssi.ru ...

... Contacts . 2010: . Sources of polarized radiation with unusual spectral features discovered in the Sun. In the framework of the study of solar active regions that produce powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp decrease in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ... Contacts: Bogod V.M. ) . Archive . ...

SIMPLE = T / file does conform to FITS standard BITPIX = 8 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A .. ... IMAGEW = 4256 / image width IMAGEH = 2832 / image height ANRUN = T / Solve this field! ...

... Hierarchy and stability 3. Stability criteria for triple systems 4. ... The results for selected systems with weak hierarchy (physical properties of components) System HD 40887 AB+CD HD 76644 AB+CD HD 217675 AB+CD HD 222326 A?+BC HD 284419 A+BC Spectral types K5V, M0V, K4V, ?? ... More accurate results for selected systems HD 217675/6 ( And) Quadruple system More accurate results for selected systems HD 217675/6 Pair B1B 2 More accurate results for selected systems HD 217675/6 (Zhuchkov et al. ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

home education > activities . ... Astronomy . ... In this collaborative group activity, teams of students use the internet to find moon myths in a number of cultures and then try to discern the astronomy behind each myth. There is a section on researching moon missions that just seems tacked on to curry favor with NASA. [e,m] . ... A field test version with good activities and background information about the Saturn system and the Cassini mission, which is scheduled to enter Saturn orbit in 2004. ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

... Thermogravimetric and differential thermal analysis . Electrode polarization measurements . ... Total conductivity, Seebeck coefficient and ion transference number measurements in controlled atmos . ... Processing of ceramic materials, electrode systems and electrochemical cells . Synthesis of solid oxide materials for high-temperature electrochemical applications . ... 4-probe DC conductivity measurements in controlled atmospheres, combined with Seebeck coefficient determination. ...

Note that these are 'General' ICDs giving information about protocols, not specific ICDs giving details of the full interfaces between specific Gemini systems. ... Document . ... The System Command Interface (PS) . ... The Baseline Attribute/Value Interface (PS) . ... Baseline DHS interface (PS) . ... System Status and Alarms Interface (PS) . ... Wavefront Sensing Information Interface (PS) . ... ICS/TCS Direct Control Interface (PS) . ... Telescope Tube Mass Balance f/16 IR Top End Config. ...

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

Contents. planet: 5 - Jupiter satellites: J1 - Io : 10, J3 - Ganymede : 15, J4 - Callisto : 6 total number: 31 type: relative dates: 1997-1997 observatory: see observatories list in the relevant article. ... Emelianov N. V., Vashkovjak S. N. (2009) Astrometric results of the observations of the mutual occultations and eclipses of the Galilean satellites of Jupiter in 1997. ... Position angle A in degrees (topocentric for mutual occultation or heliocentric for mutual eclipse) 10. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... When I was in high school, my favorite bumper sticker said "Ski Olympus Mons". ... Olympus Mons is the largest volcano in the solar system, and is located on a large elevated plain on Mars, called the Tharsis shield. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

... History-NASA Centers . ... STS Recordation Oral History Project . This effort involved the collection of history from key individuals formerly and currently associated with the agency?s Space Shuttle Program (SSP), focusing on the Space Shuttle Orbiter and its related components. ... Space Shuttle Main Engines Chief Engineer and Project Manager, Marshall Space Flight Center, Huntsville, AL . ... Space Shuttle Main Engines Project Manager, Marshall Space Flight Center , Huntsville, AL . ...

... Meade Instruments Corporation . ... Meade Pictor 616A Color Filter System Instruction Manual . ... Remove the Meade Pictor 616A Color Filter System from the telescope or camera. Use the supplied hex wrench to remove the three screws from the telescope side of the Meade Pictor 616A Color Filter System. Position your Meade Pictor 616A Color Filter System to align with the diagram below. ... Carefully screw each filter into the wheel, and re-assemble the Meade Pictor 616A Color Filter System. ...

... I am involved in Project Astro, a program to bring astronomers into public schools to assist with teaching students about science and astronomy. ... While there are all sorts of scale model of the Solar System type exercises ( Mitchell Charity's page has a good listing of what's available), none were really tailored towards discovering the spatial relationships of the planets, and in a way that could be done at night as part of a Star Party. ...

Системные исследования и разработка спутниковых систем ДЗЗ; . Разработка и создание бортовых радиометрических средств в СВЧ-диапазоне; . Разработка методов дистанционной диагностики процессов в системе океан-атмосфера с помощью спутниковых средств СВЧ-радиометрии (синоптические океанические вихри, фронтальные зоны, течения, волны Россби, тайфуны и ураганы, явление Эль-Ниньо). ... Директор . ... 1-ый заместитель директора . ... 2014 НТЦ "КОСМОНИТ" ОАО "Российские космические системы" . ...