... On 04jan01 through 08jan01 a number of calibrator sources were tracked using the sband narrow receiver at 2380 Mhz and the standard calibration pattern (4 cross scans at 45 degrees to one another). ... Figure 1 shows the point source gain in K/Jy versus azimuth angle. ... Figure 2 shows the same point source gain in K/Jy versus zenith angle with the bottom plot coming from the sep00 run. ... The ratio of the beam efficiency to the point source gain is independent of the source flux. ...

WCSLIB љ 5.15 . ... wcserr.h File Reference . ... ERRLEN љљљ(sizeof(struct wcserr )/sizeof(int)) . ... WCSERR_SET (status)љљљerr, status, function, __FILE__, __LINE__ . ... wcserr_set (struct wcserr **err, int status, const char *function, const char *file, int line_no, const char *format,.. ... Functions in WCSLIB that return an error status code can also allocate and set a detailed error message in this struct which also identifies the function, source file, and line number where the error occurred. ...

... A comparison of the computed and experimental relations F max ( H), as well as comparison of drift scans of point sources across different horizontal cross-sections of the BP with the corresponding computed cross-sections were made. ... The drift scans of the point source 3С84 (H=87 o ) at the wavelength 7.6 cm across the horizontal cross-sections of the BP (black lines) and the computed horizontal cross-sections of the BP corresponding to them (red lines). ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... src . telMod.cc . ... 2 љ * Pointing model block . ... 11 љ const float RadPerArcsec = coordConv::RadPerDeg / coordConv::ArcsecPerDeg; . ... 27 љ void TelMod::loadPath (std::string const &filePath) { . ... 29 љ int retVal = tcsIntpm(filePath.c_str(), & _model ); . ... 47 љ std::string const &termName, . ... 75 љ std::vector<std::string> TelMod::getTermNames () const { . ... 125 љ std::ostream & operator<< (std::ostream &os, TelMod const &telMod) { . ...

Russian Academy of Sciences Pulkovo Observatory On systematic and stochastic errors of radio source position catalogues Zinovy Malkin Pulkovo Observatory and St. Petersburg State University malkin@gao.spb.ru JournИes 2013, Paris, France, September 2013 Topics to discuss The following topics related to the radio source position catalogues are considered: 1. ... A new approach to assess the external stochastic errors of radio source position catalogues has been presented. ...

Next: Status of the BIMA Image Pipeline . ... We describe all the steps of the standard reduction including per pixel error propagation: Bias correction, treatment of bad pixels, flatfielding, and filtering of cosmic ray events. ... We build difference images via image convolution with a technique called OIS (optimal image subtraction, Alard & Lupton 1998), proceed with PSF-fitting, relative photometry on all pixels and finally apply an automatic detection of variable sources. ...

... Archives . ... Statistically speaking, ?false sources? are generally in the domain of Type II Type I errors, defined by the probability of detecting a signal where there is none. ... More than 2.3% of the sources are flagged as spurious. ... Type II error is claiming no signal when there is signal (failing to reject the null hypothesis when the alternative is true). Type I error is rejecting the null hypothesis when the null is true, i.e. detecting signal under no signal. ... Chandra Blog . ...

The Texas survey of radio sources covering -35.5{deg} < {delta} < 71.5{deg} at 365MHz . ... We present the Texas Survey of discrete radio sources between -35.5deg and 71.5deg declination (B1950), which was carried out at 365MHz with the Texas Interferometer during 1974-1983. ... The Texas Survey . ... The sources in the simpler model. ... Right Ascension 1950 . ... field separator . ... Some sources came from Version 6 of the Texas Survey ('TS6' in strp field) or Version 7 ('TS7' in strp field) . ...

Phase Retrieval Measurements of Antenna Surfaces Using Astronomical Sources Bojan Nikolic, John Richer, Richard Hills Mullard Radio Astronomy Observatory, Cavendish Laboratory, Cambridge, U.K. Abstract We present a novel technique for accurate measurement of the largescale errors in an antenna surface using astronomical sources and detectors. Out-of-focus images of compact astronomical sources contain a wealth of information about the telescope optics. ...

... The actual cross-correlations were done as follows: north of WGACAT was correlated with the GB6 catalog with a correlation radius of one arc minute. ... We therefore cross-correlated WGACAT with the GB6 and PMN radio catalogs with a 1.5 arcmin radius. ... As a result of this experiment, we then added to the WGACAT/PMN candidate list the 29 unclassified sources obtained from the 1.5 arcmin correlation and having PSPC offsets arcmin, ratio between X-ray/radio offset and positional error , and . ...

Modules | ... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Modules . Available Languages: en | ... mod_dumpio allows for the logging of all input received by Apache and/or all output sent by Apache to be logged (dumped) to the error.log file. ... DumpIOInput is only available in Apache 2.1.3 and later. ... Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our mailing lists . ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelTextureBackend.hpp . ... 26 љ #include <QString> . ... 56 љ inline QString textureStatusName( const TextureStatus status) . ... 118 љ const QString& getName () const . ... 132 љ invariant(); . ... 143 љ const QString& getErrorMessage () const . ... 151 љ const QString path ; . ... 157 љ StelTextureBackend ( const QString& path ) . ... 200 љ void errorOccured ( const QString& error) . ... 232 љ void invariant() const . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The K2 optical (top panel) and MAXI X-ray (lower panel) light curves of Sco X-1. ... The error on the optical photometry is negligible and the error on the X-ray points are typically 1 percent. ... We also find evidence that this behaviour has a typical systemic timescale of 4.8 days, which we interpret as a possible disc precession period in the system. Finally, we confirm the complex optical vs. ...

Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... Resources . ... Astronomy Education Bibliography . ... Astronomical Pseudo-Science . ... Black Holes: An Introductory Resource List . ... Astronomy . ... Space Science Education Resource Directory . ... http://www.aas.org/education/ancientuniverse.html . National Center for Science Education: Best web site for keeping up with issues in this area, with many articles, resources, and links. http://www.ncseweb.org . ...

... Page not found . ... Задачей КА Mars Express, является выполнение научных исследований, которые не состоялись из-за аварии российского КА Марс 96. ... Mars Express будет запущен в начале июня 2003 года с Байконура ракетой-носителем "Союз-Фрегат". Выход на орбиту Марса планируется на 26 декабря 2003 года. ... КА Mars Express также будет выступать в качестве ретранслятора для посадочных ступеней других международных миссий по исследованию Марса. ...

... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...

The Astronomy Net . Articles | AstroGuide | ... Forums . ... H ere you can find resouces to help understand perhaps the grandest of all sciences. ... Upcoming Sky Events . ... This site includes lists of manufacturers, vendors, software, etc. organized in the AstroGuide to help when you are looking to purchase your tools. ... Astronomy Articles . ... Are you interested in writing an article for the Astronomy Net? ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 1997: . The parameters of the unique solar complex at the RATAN-600 were enhanced. ... A coude-echelle spectrometer of high and very high resolution was designed and manufactured for the 2-meter telescope (Terskol peak) with the simultaneous spectrum registration in a wide wavelength range ( 3500-10000 A ) by the CCD system. The spectrometer has three Schmidt cameras that enable spectral observations with the resolution of R = 45000, 90000, 180000. ... Archive . ...

ACE Real Time Solar Wind (RTSW) data, Kp index, solar and geophysical forecasts are contributed by the U.S. Department of Commerce, NOAA, Space Environment Center and are available to broad community at http://www.sec.noaa.gov/index.html . ... The Kp planetary index is prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Laboratory. from preliminary data provided by the contributing stations and the U.S. Geological Survey. ... Instrument Web site is at URL: http://swepam.lanl.gov ...