... 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. ...

Research Activities . Integrated superconducting submm receivers and spectrometers. Technology for fabrication of superconducting integrated circuits based on high quality submicron Nb and NbN tunnel junctions with high current density. Development, study and optimization of the superconducting phase locked Local Oscillator for integrated spectrometer. ... Development of the superconducting elements for operation at frequencies up to 1 THz. ... Activities | ...

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

... JWST . ... Science Blog . ... Image Gallery . ... JWST Science . ... Diffraction-limited imaging quality (Strehl = 0.8) for lambda = 2 micron . 0.6 - 28 micron wavelength range with zodiacal-light-limited imaging performance below 10 micron . Imaging and spectroscopic instrumentation over this wavelength range . ... Sensitive over the 0.6-5 micron wavelength range . Two broad- and intermediate-band imaging modules, each with a 2.2 x 2.2 arcmin field of view . ... NIRCam Website . ...

... 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. ...

RadioAstron - the International Ground-Space Radio Interferometer The Russian-Indian on-board 92 cm receiver The 92 cm (327 MHz) receiver (marked as --92, or P-SRT-92 device) is one of the four high frequency receivers of the RadioAstron Space Radio Telescope (SRT). ... The P-SRT-92 is a low noise receiver coupled to the feed at the focus of the parabolic dish. ... Then this LNA was integrated by Russian engineers into the P-SRT-92 receiver section. ...

The Parkes 21cm Multibeam Receiver is a new facility available on the Parkes Telescope which is operated by the Australia Telescope National Facility (ATNF), CSIRO. The facility consists of a 13-beam cooled 21cm receiver system, located at the prime focus of the 64m dish. ... Completed 21cm Multibeam Receiver being hoisted up to the Parkes focus cabin. ... It is now available, in 64 MHz mode and in pulsar mode, for normal National Facility use. ... Beam 1 . Beams 2-7 . ... Frequency Range . ...

Feed cabin Nr. ... Fig. ... This allows to realize the sensitivity at frequency ranges 4.8, 11.2 and 30.0 GHz of 5, 7 and 12 mK by double beam switching mode and by the integration time of the output filter 1s. Input waveguide paths were very long and had big losses. ... The focal line of the feed cabin Nr. ... Data Acquisition and Control System . The Data acquisition system of the feed cabin Nr 2 is based on the new measurement ER-DAS system (Embedded Radiometric Data Acquisition System). ...

... Meta Index / Home Page This section documents the parameters recognized by this task (if any). Parameter . ... Default . Constraints . columns . ... List of fully qualified column names . elements . ... Int . Number of the elements to be set. 0 means all elements from element to end of row (inclusive) . ... Number of the first element to be set. fromrow . ... Number of the first row . rows . ... Number of rows. 0 means all rows from row to end of column (inclusive) . ...

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

MAGION is a name of the serial of small MAG netospheric and ION ospheric satellites manufactured in Czech Republic to be launched as Russian scientific S/C hitch-hikers. ... magnetic field . ... Institute for Terrestrial Magnetism, Ionosphere and Radioware Propagation, Russian Acad. ... Technical manager of the MAGIC project E.M.Vasilyev vasilyev@mx.iki.rssi.ru . ... Institute of Atmospheric Physics , Czech Acad. ... Subsatellite project scientist from Czech Republic P.Triska ptr@ufa.cas.cz . ...