... The properties of the currently available receivers are given in Table 3 . The columns of the table give the receiver name, frequency range, the typical System Temperature (T ), Gain, System Equivalent Flux Density (SEFD) and Half Power Beamwidth (HPBW) for zenith angles below 15 (as measured by Arecibo staff.) ... Full details of the ALFA observing system, its performance, how to join an ALFA Consortium, and the latest ALFA news is to be found via, http://www.naic.edu/alfa/ . ...

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 . ...

... HST . ... HST Overview . ... 26 Jun 2015 ISR 15-06 by V. Kozhurina-Platais "ACS/WFC Revised Geometric Distortion for DrizzlePac" is now posted. 23 Jun 2015 ISR 15-03 by S. Ogaz "Post-Flash Calibration Darks for the Advanced Camera for Surveys Wide Field Channel (ACS/WFC)" is now posted. ... 07 Apr 2015 New and improved post-flashed superdark files for ACS/WFC are available in the archive. ... 12 Mar 2015 ISR 15-02 by D. Borncamp "Results of the Updated ACS/WFC Distortion Correction" is now posted. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

First light from the Superconducting Integrated Receiver on board Terahertz limb sounder TELIS P. Yagoubova, G. de Langea, R. Hoogeveena, A. de Langea and V. Kosheletsb a Netherlands Institute for Space Research, SRON, the Netherlands b Institute of Radio Engineering and Electronics, IREE, Russia Abstract-- We present the flight configuration and performance of the Superconducting Integrated Receiver (SIR) channel on the TELIS instrument (Terahertz and Submm Limb Sounder). ...

... Science . ... Science Users Information > Science Activities > APEX Science Verification > SHFI . ... Observing Facilities . ... Observing with ESO Telescopes . ... Telescope Time Allocation . ... ESO Data . ... The Science Verification (SV) observations of the APEX Swedish Heterodyne Facility Instrument were observed in March 2008. ... A selection of the APEX-1 proposals listed below have been observed during the week of joint SV observations in March 2008, and later during the ESO time of period...

... The computer control systems and the data analysis software tools are being developed simultaneously and are used with the mock-up hardware to simulate the data acquisition process. ... Software which handles the commissioning tasks, engineering analysis, and data processing are being developed in the AIPS++ system. ... Here we give some examples of the software being developed and we show some of the tools available in the AIPS++ programming and analysis environment. ...

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 LIDAR Instrument Information . The LIDAR was designed in a bistatic scheme with a separate transmitter and two receiver channels. ... The total mass of the instrument is only 940 grams (about 2 pounds) and a total volume is 950 cubic centimeters in both assemblies. ... Engineers designed the LIDAR to operate in the temperature range from -100 to 50 degrees Celsius (-148 to 122 degrees Fahrenheit) under lower pressure, near one millibar. ... One of the receiver channels has polarizer. ...

... Astrophysics Group . Graduate Research Opportunities 2016 . Available research projects/areas . ... Astrophysics Admissions Form . ... This includes active participation in the development of new instruments as well as the use of ground and space observatories. ... Further details are available at the following web site: http://www.mrao.cam.ac.uk/research/extragalactic-group-2/ . ... Our research group has a wide range of expertise in the development of receivers for radio astronomy. ...

Peremennye Zvezdy ( Variable Stars ) 26 , No. ... Moscow 119992, Russia . ... 84/32, Moscow 117997, Russia . ... Our CCD observations compared to times of minima derived from the archival photographic plates and from the NSVS and ASAS-3 data clearly show that the orbital period of the system is variable. ... The phased light curve for the light elements . ... CCD, Moscow . ... and for the current linear light elements (in excellent agreement with the NSVS, ASAS, and our CCD observations): . ...

... For the XRBs which are highly variable the concurrent presence of the RXTE/ASM that continuously measures their X-ray spectral states invites a new and innovative program to harness the available information to facilitate detailed studies of individual systems as well as comparative studies between classes of systems. ... This will enable them to quickly decide which data are worth putting in effort to extract and further analyze. ...

The information path to prepare, perform and reduce a radioastronomical observation, using the Arcos correlator , is schematized in the figure: . The programs reside part on the computer network of the Arcetri Observatory, and part at the Medicina Radio Telescope . All programs running at Arcetri are written for a Sun workstation, and are public domain software, available upon request. Programs running at the telescope are written for a PC with DOS/Windows (or Linux).

In the PROJECT we are using the following peculiar . features of RATAN-600 . ... Brightness temperature sensitivity being equal to the antenna temperature sensitivity .. ... Receiver system .. ... Using aperture averaging effect. dual- beam and dual (multi-) frequency filtration, we demonstrated full filtration of the atmosphere noise down to the receiver noise at all scales of acoustics peaks ( Fig.1 , Fig 2 ). ... We select this frequency as the central one in our project. ... Antenna surface . ...

Instruments and Methods 129 Multi-element MMIC focal array for radio telescope V.B. Khaikin1, E.K. Ma jorova1 , Yu.N. Parijskij1, M.D. Parnes2 , R.G. Shifman2 , V.A. Dobrov2 , V.A. Volkov2, V.D. Korolkov2, S.D. Uman2 , N.A. Esepkina3 , and S.K. Kruglov3 The Special Astrophysical Observatory of Russian Academy of Sciences Karachai-Cherkessia, N.Arkhyz, 357147, Russia, E-mail: vkh@brown.nord.nw.ru Svetlana", Rezonance", Ascor", 194156, Engels pr. ... Four-element sub-array prototype is shown in Fig.2. ...

... Reference ID: WWVB . Driver ID: WWVB-SPEC . ... This driver supports the Spectracom Model 8170 and Netclock/2 WWVB Synchronized Clock. ... The DIPswitches on this clock should be set to 24-hour display, AUTO DST off, time zone 0 (UTC), data format 0 or 2 (see below) and baud rate 9600. If this clock is to used as the source for the IRIG Audio Decoder (refclock_irig.c in this distribution), set the DIPswitches for AM IRIG output and IRIG format 1 (IRIG B with signature control). ...

... Meade Instruments Corporation . ... Meade Pictor XT-Series CCD Autoguider/Imagers . ... Section 1: Getting Started . ... To Take an Image . ... Section 3: File Menu . Section 4: Edit Menu . Section 5: View Menu . Section 6: Image Menu . ... Merge Images . ... Meade Software License Agreement . ... Manufacturer is Meade Instruments Corporation, 6001 Oak Canyon, Irvine, California 92620. ... Index of Instruction Manuals . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved. ...

SOME RESULTS FROM INTMINS . The experiment can be performed when the electron beam (instrument ISTOCHNIK ) and plasma blobs (instrument ARIEL ) are injected approximately along or perpendicular to the Earth's magnetic field. ... The pulses of frequency of 1000 Hz will generate EM waves and its harmonics. ... To increase the electron gun pulse duration up to D t = 0.5 f -1 ( D t = 5x10 -4 s) and to stabilise their frequency as good as possible. ... Back to the INTMINS Main Page ...

National Aeronautics and Space Administration . Lyndon B. Johnson Space Center . ... William A. Anders (Major General, USAF Reserve, Ret.) NASA Astronaut (former) . ... EDUCATION: Received a bachelor of science degree from the United States Naval Academy in 1955 and a master of science degree in Nuclear Engineering from the Air Force Institute of Technology at Wright-Patterson Air Force Base, Ohio, in 1962. ...

... International Astronomy Olympiad 2002 . ... The 7th International Astronomy Olympiad will be held on October 22-29, 2002 at the Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) in North Caucasus. ... Authorized National Representative Astronomy Organizations (ANRAO) of the participating countries are authorized to form the teams of the Olympiad member-states. ... VII IAO . ... Information about the International Astronomy Olympiad 2003 will be known in the late 2002. ...