... To goback to old model, subtract these values. 16jun06: lbw polB Cal. found loose sma feed thru inside dewar. ... Need to remeasure the cals . 08aug05: new cband cals installed . backdated to 25may05 when new amps were installed . recomputed cband data from may05 with new cal values. 22jul05: lbw diode 1 died.. used diode 2 for cals until new diodes arrive. 21jun05: installed new lbw cals (had a bug in diode1- polb... fixed 09aug05). 01jun05 : ... New cals installed . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Facilities . ATNF facilities . ... Parkes radio telescope . Australia Telescope Compact Array . ... Australia Telescope Online Archive (ATOA) . ... Receivers & dishes . ... The first four production Mk II phased array feed (PAF) receivers have now been installed on ASKAP antennas at the Murchison Radio-astronomy Observatory (MRO) in Western Australia. ...

... The Observatory is a principal point of contact for astronomy amongst the mass media (press, radio and television), and plays a major role in the promotion of astronomy and public understanding of science both locally (i.e. within Armagh City and District and Northern Ireland) and abroad. ... These contacts lead to articles or citations in the national and international press, and to sound-bites and media clips on radio and television. ... UK and Republic of Ireland national television . ...

Status of the RadioAstron project development . The engineering model of the Space Radio Telescope (SRT) was assembled in Lavochkin Association (LA) in the configuration consisting of 10-m parabolic radio astronomical antenna made of carbon-fiber, F ocal and Device cabins of the scientific payload and on-board and ground complex of high data rate up-down radio link (VIRK). ... Then,radio astronomical tests were conducted using real radio sources. ... Space Radio Telescope . ... Data Processing . ...

... Up: Interrupts and Signals Previous: Sending Signals - kill() . int (*signal(int sig, void (*func)()))() - that is to say the function signal() will call the func functions if the process receives a signal sig . ... signal(SIGINT, SIG_IGN); . ... Finally lets write a program that communicates between child and parent processes using kill() and signal(). fork() creates the child process from the parent. ... The child picks up these signals with signal() and calls appropriate functions. ...

... build and test receivers up to 40 - 350 GHz . ... Banham R., Valsecchi G., Lucci L., Pelosi G., Selleri S., Natale V., Nesti R., Tofani G. 2005, Microwave Journal 48, 112 Electroformed front-end at 100 GHz for Radioastronomical applications . Comoretto, G., D'Ambrosi, A., Nesti, R., Russo, A., Palagi, P. 2006, Arcetri Technical Report n. 4 A modular multichannel spectrometer - design study . ... Cresci, L., Lucci, L., Orfei A., Natale, V., Nesti, R., Panella, D., Pelosi, G., Rossi, L. 2006, Mem. ...

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). ...

... Michael E. Lopez-Alegria (Captain, USN, RET.) ... After his second mission, he led the International Space Station (ISS) Operations branch of the Astronaut Office. ... In October 2014 Lopez-Alegria became an independent consultant; he is based in Washington, D.C. SPACE FLIGHT EXPERIENCE: Mission Specialist (MS)-2, STS-73 Columbia (October 20 to November 5, 1995). ... The primary mission objective was delivery of the Expedition 6 crew to the ISS and the return of the Expedition 5 crew to Earth. ...

... On-line calibration consists of calibration operations performed to maintain the ALMA observing system properly tuned to successfully execute the planned observations. ... Among processing operations are the calibration of the atmospheric absorption, of phase radiometric correction, of pointing scans, of phase and amplitude reference measurements, .. ... In the mean time tests of the calibration software will proceed using both simulated data and data from the antenna prototypes...?re 1 . ...

Use of GLONASS for International Time Keeping . ... For short- and middle-distance time transfers, the GLONASS P-code links show an accuracy of about 1 ns, which is better than that of the GPS C/A-code links. ... radiointerferometry with very long baselines, GLONASS, GPS, international time metrology, P-code signal, calibration of time receivers, uncertainty, P-code links, C/A-code links, accuracy, time links, TAI calculation, GLONASS time (GLNT). ...

Pulkovo permanent GNSS station PULK . ... Initially, Trimble 4000SSE receiver and TRM33429.20+GP antenna without radome were installed at the station. ... Both hourly and daily data are delivered to EPN data centers. ... Daily PULK station position is computed in the Precise Point Positioning (PPP) mode using orbits, clocks, EOP, and antenna absolute phase center corrections provided by the JPL ftp service . Ocean loading is computed using data obtained from the OSO ocean tide loading provider . ...

Observation of the Sunyaev-Zel'dovich E ect toward CL0016+16 at 43 GHz M. Tsuboi et al. Ibaraki University, Japan We performed a mapping observation of the Sunyaev-Zel'dovich e ect toward a distant cluster of galaxies, CL0016+16, at 43 GHz using a newly developed 6-beam SIS receiver installed in the Nobeyama 45-m telescope. The temperature decrement of the cosmic microwave background radiation was measured to be
T  A = 0:490:05 mK at the central position of the cluster. ...

... new: . ... Python 2.6.2 + most up-to-date modules (December 2009) . ... pyQC script structure . ... The current installation of python and its associated modules on our DFO machines is extremely old (i.e. python 2.4.2 was released in Sept. ... The new python executable lives in: /qcdp/bin/python . ... The first figure shows the execution times for the old python installation, while the second figure shows the execution times based on scripts running the python 2.6.2 installation with the new modules...

This page provides explanatory text for the dials shown on the Rice Current Solar Wind Conditions and Current Solar Wind Conditions (Dials Only) webpage. These dials use the last good received set of measurements from the Real Time Solar Wind package on the Advanced Composition Explorer (ACE) spacecraft. ... Measured) This quantity is the number of solar wind protons per unit volume as measured by the ACE Solar Wind Electron Proton Alpha Monitor (SWEPAM) . ... It is measured by ACE/SWEPAM. ...

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 . ...

... Posts tagged ?breakdown point? ... Tags: biased , breakdown point , chi-square , confidence interval , coverage , delta chi-square , estimator , LAD , mean , median , plug-in , rmse . Category: Bad AstroStat , Cross-Cultural , Data Processing , Jargon , Uncertainty | 2 Comments . ... The breakdown point of the mean is asymptotically zero whereas the breakdown point of the median is 1/2. ... ArXiv] use of the median? Tags: breakdown point , mean , median , quantile . ... Comment . ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... You may write to me if you have questions. ... Let G be a locally compact abelian group, H be a compact open subgroup, and let f L1 (G). Fix a Haar measure µ on G to define the Fourier transform f : G C. a) If f (g ) = 0 for all g H , show f : G C is constant on H -cosets in G: f ( ) = f () if H . ... Let p be a prime. p 1 |y |2 1+1/p p a) In the topological group R в Qp , show Z (embedded diagonally) is discrete but not co-compact and Z[1/p] (embedded diagonally) is both discrete and cocompact. ...

... 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. ...