Spectrometric complex of RATAN-600. ... There is a system of stable computer driven local oscillators that have accuracy about 10 to degree -8. ... Spectrometer driving system is accomplished with two DVK-4 computers and one IBM PC and make possible to develop radio line observations on the frequency band pass of the input low noise amplifiers ( LNA ): . ... The performance of spectrometric complex is controlled by program driving system ( PDS ) and the data gathering and recording system ( DGS ). ...

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

To leave the frames behind, click here . 430-MHz Gregorian . ... RFI Situation . ... Receiver History . ... 422-442 MHz . ... For the current frequency v time 430-MHz RFI plot from the Arecibo "hill-top" monitoring system, click here . For the current frequency v time 430-MHz RFI plot (with band-pass correction) from the Arecibo "hill-top" monitoring system, click here . For the current daily rms/mean v frequency 430-MHz RFI plot from the Arecibo "hill-top" monitoring system, click here . ...

... SSAU History . ... The Ground Control Complex for Small Spacecraft of Samara State Aerospace University took control of the satellites Aist-1 . ... The data received from SSAU scientific equipment on board of the satellites Aist-1 was processed by the engineers of the Rocket and Space Centre and then was transferred to the university scientists. ... On April 19, 2013 the first small spacecraft Aist-1 was launched from the space-launch complex Baykonur together with a research satellite Bion-M No. ...

... In spite of the good potential possibilities, some of the station "Dnepr" design characteristics did not allow us to apply the usual special IS radar measurement methods. ... Thus for IS signal measurements at the "Dnepr" station, we have developed special methods for recording and processing IS signals in order to determine plasma ionospheric parameters. ... Equations (4-5) from the basis for data post processing to obtain ionosphere parameters. ...

... Special procedures had been developed and tested with the flight electronics: · fast definition of the operational conditions for the FFO (both in the Fiske step and quasi-particle regimes); · measurements of the free-running FFO linewidth; · optimization of the LSU and HM parameters; · optimization of the PLL operation; · minimization of the SIR noise temperature; · setting all predefined SIR parameters in the exact sequence for ... SIS IF dependence on HM voltage and LSU power. ...

Next: Setup Files Up: Frequency Catalog Previous: Frequency Catalog Contents . The parameters of the frequency file tell SCHED over what frequency range the group if usable and on which stations. Most of the parameters are the same as parameters in the setup file since they are meant for direct substitution once the correct frequency group has been identified. ... This will be matched against the station name in the setup file. The name VLBA will be a default for all VLBA stations. ...

... After the data from an observation have been received and processed through the STScI pipeline, hardcopy products ( paper products ) are generated which summarize the data obtained. ... Paper products typically summarize the set of exposures that constitute a visit in the Phase II proposal. ... The content of the pages is as follows: . ... Observation Summary: a table summarizing the proposal information for each exposure in the present set, including processing and data quality flags ( Figure 15.4 ...

... Prognoz Launches . ... Images . ... antenna of the low-frequency radiation receiver of the electromagnetic field . ... panel of solar batteries . magnetometer bar Prognoz is the name of the once soviet Earth research artificial satellites (ISZ for Russian) meant to study processes of solar activity, their influence on interplanetary environment and the Earth magnetosphere. ... solar wind and magnetosphere study . ... Full image is 61k . Full image is 52k . Full image is 60k . ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

... 8, ``Celestial Mechanics'', 2002 First results of GPS orbit determination with GRAPE package using a square--root information filter M. O. Keshin Institute of Applied Astronomy, St. Petersburg, Russia The zero--differenced carrier phase measurements contain the distance be­ tween the phase centres of receiver and transmitter antennas biased by unknown integer number of cycles (phase ambiguities). ... In the case of GPS the problem of solar radiation pressure modelling is of primary importance. ...

National Space Agency of Ukraine and . ... The Second International Meeting on WARNING Mission . ... Space Research Institute of Ukrainian National Academy of Sciences - National Space Agency, . ... The Head of Scientific committee of the Project “Warning” is DR V.G.Bar`yahtar, Academitian of Ukrainian National Academy of Sciences. ... Lviv Center Space Research Institute of Ukrainian National Academy of Sciences, . ... National Space Agency of Ukraine, Bozhenka St. 11, 252022 Kyiv-22, Ukraine. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

... The results are used in quasireal time by the observing process, but also as input by hardware quality control, by the dynamical scheduler, and by the Science Pipeline. Among processing operations are the calibration of the atmospheric absorption, of phase radiometric correction, of pointing scans, of phase and amplitude reference measurements, .. ... Using the last few measurements, we will determine a provisional amplitude calibration curve (to be also used by the Quick Look pipeline). ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

... Column 1 gives the object name from the Case or Markarian catalogs. ... For Markarian galaxies the errors of coordinates usually lie inside 2'' (Lipovetsky [ 1983 ]). Column 4 gives the eye-estimated apparent blue magnitudes according to the same sources. ... Other names of a galaxy we give in column 7. ... In column 3 we cite the original emission-line code of the galaxy for the strength of [O III ] doublet according to the Case catalog (s - strong, m - medium, w - weak). ...

... 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., ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). ... string . ... yes|no . Yes' forces overwrite of colimchain output. astest . ... Yes' invokes asmooth to smooth the input images before they are supplied to colimplot . ... The maximum allowed value of the width of the smoothing gaussian is specified via this parameter. desiredsnr . ... The maximum desired signal-to-noise ratio of the output image can be specified via this parameter. nconvolvers . ...

Институт Космических Исследований . ... ИКИ РАН - Главная . Отдел "Исследование Земли из космоса" . ... Microwave studies of the nonlinear dynamics of sea waves (Grant #05-02- 16384, Russian Foundation for Fundamental Researches). ... Electromagnetic wave scattering on sea surface in presents of surface films (Grant #04-02- 16629, Russian Foundation for Fundamental Researches). ... Two Polarization X-band Radar . ... Transmission frequency . ... Polarization . ... ИКИ РАН , 2009 ...