... Let us define power spectrum, covariance and autocovariance statistics P , Cov and ACF : . The power spectrum is special among the periodograms in that it is the square of a linear operator and reveals the important correspondence between frequency and time domain analyses: . ... Let us consider which linear operators or matrices convert series of independent random variables into series of independent variables. ...

... Here T is the index set, is the spatial process, is a realization of the process. ... A usual spatial point process is defined as (i.e., the index set is the points of ) or [the number of points within A ]; (i.e., the index set is the units of ), where both and T are random. ... The most important application of lattice models is statistical modeling of spatial images, which is widespread in astronomical image processing (restoration, segmentation, classification, reconstruction, etc.) ...

... Archives . ... Reduced and Processed Data . ... 2 distribution plays an incredibly important role in astronomical data analysis, but it is pretty much a black box to most astronomers. ... Comment ( RSS ) | ... I guess in the typical analysis we call chi2 a ?random variable? that follows the chi2 distribution: . ... where D(i) is the observed data, M(i) is the model predicted data and we ?silently? assume that D(i) is normally distributed and each i measurement is independent. ... Chandra Blog . ...

... Many scientific institutions maintain bibliographies of articles published by their scientists and monitor references made to these publications; these figures are often used to evaluate the effectiveness of the institution. ... a) Identification of papers that are based, at least partly, on new data Publications based on observations can be subdivided into two groups: those presenting new, previously unreported data, and those that make use of already published data. ... Published by . ...

... There are compelling reasons for the pulsar community to utilise a standard data storage format. For example, standardisation of file formats significantly decreases the amount of effort required to integrate new instruments into the analysis chain. ... Accordingly, we have defined PSRFITS as a standard FITS-based format for pulsar data files. ... For example, the first line of Processing History HDU contains information about the data acquisition program and the initial structure of the file. ...

Data files used in analysis (supported by the IAA except other stated) . ... Database name-Experiment code cross-reference table (based on the IVS master files, updated with every new session) . ... Observations Statistics (updated near-daily) . ... Starting from June 2004 IAA AC regularly submits NGS cards to the IVS with a delay of several hours after appearing of the database in the IVS archive. ... Session tropospheric paremeters are regularly submitted to the IVS troposphere combining center ...

... For example, the previous examples are periodic. Example Dual beam calibration observation of a strong-point source with the GBT: Example Dual beam calibration observation of a strong-point source with the GBT: 0 -1 -2 Tb -3 -4 0 1000 2000 3000 t 4000 5000 6000 Example 1/f spectrum Shor t section of the data away from the strong source Time stream Power spectral density -1.75 -1.76 -1.77 -1.78 -1.79 240 260 280 300 t 320 340 360 15 5 5 15 25 0.0 0.2 0.4 Frequency 0.6 Power ...

... HST . ... Data . ... HST Overview . ... Program Information . ... Post-Observation . ... Retrieving HST Data . ... The page is divided into quadrants: summaries of the observation, the calibration, the image statistics, and OMS (or jitter) data. ... The Observation Summary in the upper left quadrant contains information from keywords which characterize an exposure, such as the proposal ID, instrument, target and its location, grating, observation mode, exposure time, wavelength information, etc. ...

... If finddead =Y, embadpixfind looks for too dark pixels, rows and columns using the same algorithm (but reversed to look for holes). The statistics in a single observation is usually not enough to find any dark pixel, but dark rows or columns may be found. ... Whatever findbright , the very bright pixels (found at probathreshold squared) are looked for first (some are so bright that they can disrupt the more subtle row and column searches). ...

Statistics from S. Pesci and P. Mazza logbook. I began my visual hunting program in 1991, after some ten years of variable star observing and deep sky. My patrol galaxies were some one hundred circumpolar galaxies, which were suveryed with a 45cm home made Dobsonian. ... These are checked on average 10-15 times a year, during 35 to 45 nights (numbers depend much on weather), mostly on weekends and holidays. Since 1995 Piero Mazza has joined my search with his 40cm home made telescope. ...

Courses recommended for Astronomy and Astrophysics Honours in 2006 . ... 1st semester 2006: 20 February - 2 June . ... Please note that some of the 1st semester honours courses may run slightly into the teaching free period between 5 June and 14 July. ... This can be either all six courses offered by RSAA (see below) or equivalent honours courses from Geology, Physics or Math. ... Final course date 21. ... Venue: Woolley Seminar Room, RSAA . ... April 26, Wednesday, 10-12am, Stellar parameters . ...

... Exams . Mathematical Analysis . ... Mechanics . ... Methods of Processing Observation . Tests . ... Mathematical Analisis . ... Theory of Functions of Complex Variables . Probability Theory and Mathematical Statistics . ... Mathematical Methods in Physics . Atomic Physics and Spectroscopy . Electrodynamics and Theory of Radiation . Theoretical Mechanics . ... Quantum Mechanics . ... Course of Specialization . ... Complementary course . Nuclear Physics . ...

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... In this work, we investigate some a new possibility to estimate correlations between radio source position catalogs (RSC). ... Catalogs AUS AUS AUS AUS AUS AUS BKG BKG BKG BKG BKG GSF GSF GSF BKG GSF IAA MAO OPA USN GSF IAA MAO OPA USN IAA MAO OPA USN MAO OPA USN OPA USN GSF IAA IAA IAA MAO With correlations, the system to be solve consists of the equations: The key point is to obtain a reliable estimates of ij. ...

The INTERBALL space mission ( INTERBALL-1 with its subsatellite MAGION-4 in orbits with an apogee of 30 Re, and INTERBALL-2 with its recently reactivated MAGION-5 subsatellite in orbits with an apogee of 4 Re geocentric) continue to conduct important measurements in the solar wind, magnetosheath, magnetotail, magnetopause and above the auroral region. ... Plasma Boundaries in Near-Earth Space . ... Now we announce that online ABSTRACT submission is available at the SYMPOSIUM home page . ...

... L-Wide . ... Receiver History . ... Available Filters: . ... Use with e.g. filter 5) NOTE 2 1120-1220 3 1230-1470 4 1550-1820 5 1100-1800 6 1360-1470 7 1320 hipass NOTE 8 1180-1280 9 1280 hipass (ext Output unit. ... Consequently, the calibration for data collected using the hipass 1320 and the hipass 1370 filters only will be mis-calibrated (i.e. by using the opposite polarisation calibration data). ... It is now possible to select any bandpass filter that is not in the 1320 hipass band. ...

... AGU Fall Meeting, 15-19 December 2008, San Francisco, poster . Zotov L., Shum C.K, Singular spectral analysis of GRACE observations Climate, Statistics, and Satellites, a symposium in honor of Jerry North , June 8-10, 2009, Presidential Conference Center, Texas A University, talk . 2009 Fulbright Visiting Scholar Conference, 19-21 April 2009, Washington DC . ... Zotov L., Shum C.K., Singular spectrum analysis of GRACE observations, 9th Gamow summer school 17-23 August, 2009, Odessa, Ukraine . ...

Dr. Victoria I. Prokhorenko . ... Situation Analysis of The "PROGNOZ" Orbit for Solar- Terrestrial Space Experiments. ... Studies of Satellite Situations Mission. ... A Situation Analysis of the Orbits of the Tail and Auroral Probes in the "INTERBALL" Project. ... Specific Tasks of Multiple Scale Plasma Measurement in Regatta- Cluster System (co-authors S. Savin and L. Zelenyi)- In Book: Proceedings of an International Workshop on Space Plasma Physics Investigations by Cluster and Regatta. ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...