... CORCHAN(1) specifies the number of spectral channels per baseband channel (one polarization component) that the correlator will write. CORCHAN(2) specifies the number of channels to use in the internal FFT in the correlator. ... Over averaging can cause loss of amplitude due to ``delay smearing'' -- the effect of large phase slopes across the channels going into an average. ... But excessive numbers of channels lead to excessive output data rates and data set sizes. ...

. ОГЛАВЛЕНИЕ . Предисловие к четвертому изданию . Введение . § 1. Предмет и задачи астрономии . § 2. Подразделение астрономии . § 3. Возникновение и основные этапы развития астрономии . § 4. Практическое и идеологическое значение астрономии . § 5. Основа и источник астрономических исследований . § 6. Краткий очерк строения Вселенной . Глава I . Основные сведения из сферической астрономии . § 7. Видимые положения светил. Созвездия . § 8. Видимые движения звезд, Солнца, Луны и планет . § 9. Географические

... Use of This Manual . ... Spectral-Line Observing at Arecibo (3.25 Mbyte) + Spectral line Appendices (0.56 Mbyte) ( HTML page ) . ... Data Analysis . ... Continuum Observing at Arecibo (0.36 Mbyte) + Continuum Appendices (0.31 Mbyte) . ... Pulsar Observations at Arecibo (4.03 Mbyte) + Pulsar Appendices (0.70 Mbyte) ( HTML page ) . ... VLBI Observing at Arecibo (0.36 Mbyte) + VLBI Appendices (0.35 Mbyte) . ... Introduction to Computing at Arecibo (0.33 Mbyte) + Computing Appendices (0.32 Mbyte) . ...

... Intro to HST Data Handbooks 8.0 May 2011 . ... Introduction to the HST Data Handbooks > Chapter 6: Observation Logs > 6.1 Observation Log Files . ... 6.1.1 Jitter File Contents . Observation Log Files , also known as jitter files, record pointing, jitter, and other Pointing Control System (PCS) data taken during an HST observation. ... A detailed description of the observation log files can be found online: http://www.stsci.edu/hst/observatory/pointing/obslog/OL_1.html . ...

XMM-Newton Science Analysis System . ... Meta Index / Home Page / Description . ... lsodf . DESCRIPTION . lsodf simply lists the contents of the ODF which is either pointed at by the environment variable . SAS_ODF . or named via the generic command line parameters -o or -odfdir (see taskmain for details). The specification of an ODF directory on the command line has a higher precedence than any environment setting. ... XMM-Newton SOC/SSC -- 2007-07-09 ...

Sloan Digital Sky Survey Telescope Technical Note 19970527 Walter Siegmund . ... Pointing Error Budget . ... The interleaved strips and adjacent stripes overlap about 1 arc minute. ... However, a 2-D pointing accuracy of 3 arc seconds RMS leads to acceptibly uniform overlap and minimises the number of cases that require special handling (Table 3). ... A guide fiber bundle diameter of 16.5 arc seconds and a pointing accuracy of 3 arc sec RMS results in 99% initial success in acquiring guide stars. ...

... Contents . ... Sidereal time . ... Ephemeris of the Sun . ... Rectangular equatorial coordinates of the Sun (J2000.0) . ... Aberration, parallax, mean longitude of the Sun, obliquity of the ecliptic, nutation in obliquity . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris of Venus . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Conversion of mean time to sidereal time (with accuracy 0.01 s )...

... 2MASS Overview . The 2MASS Sky . Executive Summary of 2MASS Second Incremental Data Products . Point Source Catalog . Extended Source Catalog . ... Distribution Mode for 2MASS Products . Data Release Plan . ... Point Source Catalog (PSC) . Extended Source Catalog (XSC) . ... 2MASS Source Naming Convention . ... General Properties of the Data Release . ... Comparison of Achieved Performance of Second Incremental Release Catalogs with Level 1 Science Specification . ...

... High spectral, spatial and temporal resolution UV observations of the quiet Sun transition region show a highly structured and dynamical environment where transient supersonic flows are commonly observed. ... Estimates of the kinetic and enthalpy fluxes associated with these events show that explosive events are not important so far as solar coronal heating is concerned. ... In some cases, non-Gaussian line profiles are associated with supersonic flows in small magnetic loops. ...

... Bojan Nikolic web pages (r. 329) . See ALMA WVR phase correction algorithms and software for information regarding the wvrgcal program, libAIR C++ library and download of software for atmospheric phase correction for ALMA . This is the contents page for my ALMA related work, which is currently focused primarily on techniques for correction of atmospheric phase errors using 183GHZ water vapour radiometers. ... ALMA Goals . ... ALMA WVR phase correction algorithms and software . ... Software . ...

Next: HST Paper Products: A New Way to Look at HST Data . ... After providing on-the-fly re-calibration of HST data to archive users, ST-ECF has embarked on a new project aiming at grouping, cosmic ray cleaning and drizzling images taken by most HST instruments. ... The production of the missing jitter files combined with the extraction of additional engineering parameters will greatly enhance the homogeneity and the scientific value of the entire archive. ... 1995, HST Data Handbook, STScI, 107 . ...

... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... Great Refractor . ... Image Credit: B.F. Nutting, A. Sonrel . ... One thing that seems to be missing from this image is a finder telescope. ... The image is credited this way: . ... Annals of the Astronomical Observatory of Harvard College / History and Description of the Astronomical Observatory of Harvard College vol. ...

Published in the 2 nd announcement . The XI Asian-Pacific will be organised on November 13-22 , 2015 . ... Sunday, November 15 Theoretical round . ... Tuesday, November 17 Observational round parts II-III . ... The official APAO e-mail: . ... 1-3 days , 3-5 days , 5-7 days , 7-9 days , . ... current month , August 2014 , September 2014 , October 2014 , November 2014 . ... 1-3 days . Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ...

Russian . ... text in English) . ... text in Russian) . ... Circular Polarization of Galilean Satellites of Jupiter . ... New Quasi-Isothermal Models of Galaxies . ... Moscow, Sternberg Astronomical Institute, December 20-21, 2012 . ... A New Source of Maser Radio Emission in the 1720-MHz OH Line . ... K.I. Churyumov, V.A. Ponomarenko, V.V. Kleshchonok, A.R. Baranskiy . ... Discovery of Radio Pulses from SGR 0418+5729 . ... The Discovery of New Pulsars on the BSA LPI Radio Telescope. ...

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

... As part of the Great Observatories Origins Deep Survey ( GOODS ), multi-object, optical to NIR spectroscopy in the Chandra Deep Field South (CDF-S) has been carried out, using the FORS2 instrument mounted at the Kueyen Unit Telescope of the VLT at ESO's Cerro Paranal Observatory, Chile. ... In this release we provide the full set of extracted 1-dimensional fits spectra in the GOODS/FORS2 survey (LP170.A-0788) and associated spectral previews and colour image cutouts (5"x5") for each target. ...

Next Previous Contents . ... There are filesystems on disk partitions and other devices, and there is the filesystem as it is presented to you by a running Linux system. In Linux, you ``mount'' a disk filesystem onto the system's filesystem. ... A filesystem imposes some structure on this, and makes it look like files within directories within directories.. ... If the power cuts out at this point, the filesystem will be broken. ... Usually, the kernel mounts its root file system read-only. ...

... Astronomical Observatory, Shevchenko Park, Odessa, 65014, . ... The XVI -th G. Gamow's Odessa Astronomical Summer Соnference-School, 14-20 August, 2016, Odessa, Ukraine . ... The XV -th G. Gamow's Odessa Astronomical Summer Соnference-School, 16-23 August, 2015, Odessa, Ukraine . ... The XIV -th G. Gamow's Odessa Astronomical Summer Соnference-School, 17-23 August, 2014, Odessa, Ukraine . ... The XIII -th G. Gamow's Odessa Astronomical Summer Соnference-School, 19-25 August, 2013, Odessa, Ukraine . ...