... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Sequence of four video frames captured at 01:05 BST at Armagh Observatory on the night of the 24/25th July 2013, showing the onset, development and demise of the sprite. ... Unlike common lightning discharges, which often jump between clouds or between the clouds and the ground, sprites are associated with similarly powerful electrical fields that occur high above the clouds of the EarthтАЩs atmosphere. ...

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• CONCLUSION (2)
• BUT :
• Astrodynamics 101

... Galaxies with polar rings (PRGs) are a unique class of extragalactic objects, consisting of a ring or disk of gas, stars and dust orbiting in a plane nearly perpendicular to the disk of a central galaxy. ... At present, there are only about two dozen kinematically confirmed galaxies in this PRG class, mostly from the Whitmore et al. (1990) catalogue, based on photographic images. ... Examples of object from our catalogue SPRC (=SDSS-based Polar Ring Catalogue). ...

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The study of energetic particles acceleration and transport within the magnetosphere and on its boundaries is the main goal of DOK-2 experiment on Auroral Probe in a frame of INTERBALL project. ... DOK-2 uses two pairs of energetic particle telescopes . ... This information is available only during the most informative Real Time mode of DOK-2. ... Full 56-57 channel spectra accumulated during time intervals from 10 s to 1464 s depending on a particle intensity. ... For this time interval: . ...

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• STDA files
• SKA-3 Experiment Description
• CYlindrical GAmma-ray Monitor CYGAM -

... Russian Academy of Sciences, . Sibirian Department, Yakutsk Scientific Center . Directors: Germogen F. Krymsky, Director, corresponding member of Russian Academy of Sciences . Evgeny G. Berezhko, Deputy Director . ... The main scientific directions are physics and astrophysics of cosmic rays, physics of solar-terrestrial interactions, investigations of interplanetary and near-the-Earth space, physical processes in magnetosphere and ionosfhere of the Earth. ...

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Files do not actually reside inside directories. ... The directory holds two pieces of information about each file: . ... an inode number which acts as a pointer to where the system can find the information it needs about this file. Filenames are only used by the system to locate a file and its corresponding inode number. ... To the system, the file is the inode number. Multiple filenames can be used to refer to the same file by creating a link between an inode and each of the filenames. ...

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• HTML Math

... casa::TSMFile . ... File object for Tiled Storage Manager. More... #include < TSMFile.h > . ... TSMFile (const TiledStMan *stMan, uInt fileSequenceNr, const TSMOption &) . Create a TSMFile object (with corresponding file). ... Create a TSMFile object for the given existing file. ... Create a TSMFile object for the given existing file. casa::TSMFile::TSMFile . ... References file_p . ... References file_p , and casa::BucketFile::open() . ... BucketFile * casa::TSMFile::file_p [private] . ...

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• selfcal
• TPTIME
• casacore: casa::SkyComponent Class Reference

... 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. ...

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Astronomy Picture of the Day . At the Sun s Edge . ... 7.08.2008 . ... Credit: Catalin Beldea (Descopera Magazine) Explanation: A train trip on the Trans-Siberian railway to Novosibirsk resulted in this stunning view along the edge of the Sun recorded during the August 1st total solar eclipse . ... August 2008 . ... Publications with keywords: total solar eclipse . Publications with words: total solar eclipse . ... A Total Solar Eclipse Over China . ... A Total Solar Eclipse over Turkey . ...

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• Астронет > At the Sun s Edge
• Journal "Peremennye Zvezdy"
• JKCS041: The Farthest Galaxy Cluster Yet Measured

... The vertical and slanted dashed lines in the first panel mark the separation distinguishing are as occupied by thick-disk objects according to Hanson et al. (1998) and Martin, Morrison (1998) , respectively. An abrupt change in the dispersion near V res 290 km/s (the vertical dashed lines) is apparent in all panels except the first. discussion in the text | next figure | privious figure . ...

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• Subsystems of the Galactic halo, figures
• Population of Galactic globular clusters, tabl
• F-stars in galactic disk, figures

. As it finished its second Martian year on Mars, NASA's Mars Exploration Rover Spirit was beginning to examine a group of angular rocks given informal names corresponding to peaks in the Colorado Rockies. NASA/JPL

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B3E0CFFB6-07D2-428F-BDC0-4837CEF5A043%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BDB385198-BA21-4BB3-A14D-C615FCC24108%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B6D9202E6-5456-4E02-9F2C-7A7AC0BCCA54%7D

... This article describes the AXAF aspect determination pipeline and its components, and highlights a procedure for determining centroids-a crucial step in deriving the post-facto aspect solution. ... The Ground Aspect Determination System (GADS) pipeline is a collection of tools which process aspect telemetry and generate aspect data products. ... Using a subset of ACA pixel data from the Aspect Interval, we identify poorly-fitting PSFs and find spoiler stars in star and fiducial light images. ...

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• Pipeline Calibration for STIS
• Projective Transform Techniques to Reconstruct the 3-D Structure and the
• Modelling Spectro-photometric Characteristics of Nonradially Pulsating Stars

... Many boards supported by comedi have digital input and output channels. ... Comedi groups digital channels into subdevice, which is a group of digital channels that have the same characteristics. ... Individual digital lines can be read and written using the functions comedi_dio_read(device,subdevice,channel,unsigned int *bit); comedi_dio_write(device,subdevice,channel,unsigned int bit); . ... It indicates that an external digital line should be used to trigger the event. ...

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• Instrumentation
• String Manipulation
• Fabry-Perot Interferometer: Data cubes

... NIC-FPS is an instrument combining the capabilities of a near-infrared imaging camera with a cryogenic Fabry-Perot etalon currently under development at the Center for Space Astrophysics and Space Astronomy , University of Colorado with support from Rice University , Ball Aerospace and the Astrophysical Research Consortium. It is scheduled to begin operations on the ARC 3.5m telescope at Apache Point Observatory in 2004. ... For full frame images, the FITS file will result in a size of: . ...

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• MCP Menu documentation
• TUI:Telescope:Offset Types
• Instrument Orientations and Offset Directions

... Such particles are called ``optically soft'', and the corresponding approximation could be named that of optically soft particles. ... For the theory based on the assumption (1), there are a set of the names: Rayleigh-Gans [ 11 ], Rayleigh-Debye [ 274 , 397 ], Rayleigh-Gans-Born [ 474 ], Rayleigh-Gans-Debye [ 78 , 144 , 409 , 410 ], Rayleigh-Gans-Rokard [ 132 ], Rayleigh-Debye-Gans (RDG) [ 100 , 462 ], Born (or the first Born) [ 56 , 135 ] approximation. ...

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• Circular polarization: change of sign
• Database of Optical Properties -- Level: subpage
• Database of Optical Constants -- Level: welcome

... Directives | ... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Rewrite . ... This document discusses some of the technical details of mod_rewrite and URL matching. ... Then the URL rewriting engine is started with the contained ruleset (one or more rules together with their conditions). ... If the Pattern matches, mod_rewrite looks for corresponding rule conditions (RewriteCond directives, appearing immediately above the RewriteRule in the configuration). ...

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• TRASP 2
• The Face on Mars
• Roberto Baglioni Home Page

... Average resolution at altitude H=668 km . ... Swath width at H=668 km and inclination of beginning of swath 20.48 degrees . ... Resolution at H=668 км . ... Наименование параметра . ... 1 канале . ... Полоса обзора при H=668 км . ... 1-5 спектральной зоне, не более . ... 1 спектральной зоне . 0,48-0,52 мкм . ... 0,915-0,997 мкм . ... 1-4 канал . ... 1-4 каналов . ... Спектральные характеристики каналов (по уровню 0,5): . ... For more information send a mail to: info@sputnik.infospace.ru . ...

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. Departement of Quantum Astrophysics . Head: Kurt V.G. , Prof. ultraviolet spectroscopy of planetary upper atmospheres and interplanetary/interstellar medium; . observations of gamma-bursts and optical identification of their sources; . long-base optical interferometry. Staff: .

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• ОТЧЕТ
• Description of the RadioAstron project, english version
• Mission Operations Data Transfer

... OXIDIZED AND HYDRATED SILICATES ON M- AND S- ASTEROIDS: SPECTRAL INDICATIONS. ... In particular, it was shown that a considerable fraction (ab. 35%) of the mainbelt M-type asteroids have absorption bands at 3 µm [3, 6] diagnostic of water of hydration. At the same time it was found that the visible-range reflectance spectra of some M- and Sasteroids include absorption features characterizing presence of oxidized silicates [4, 5]. ... The reflectance spectra of 161 Athor (Fig. 1), 497 Iva (Fig. ...

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• http://selena.sai.msu.ru/Pug/Publications/SSR447.pdf
• http://selena.sai.msu.ru/Bus/Publications/m44_14_busarev_etal.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms34/MS064.pdf

... The Radon transform (also known as the Hough transform) is formulated as a family of line integrals through a two-dimensional function. ... The Radon transform provides us with a simple means of computing the FF plane of the autochirplet transform, by using the Wigner distribution, and arriving at a transform space that tells us basically the same information as the chirplet FF-plane, except that we benefit from the greater resolution of the Wigner distribution. ...

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• Notation
• Tutorial on Fortran 90, Digital UNIX
• Image: View from the bridge (downtown direction)

... Milky Way . ... Map of the Milky Way (based on data from NASA's Spitzer Space Telescope) showing its two major stellar arms and central bar. ... ТљIn written science fiction, one often encounters another navigational convention, where towards the Galactic Centre is described as т??Corewardт??, away from the Centre towards the rim of the Milky Way is т??Rimwardт??, objects in the direction of the Galaxyт??s rotation are т??Spinwardт??, while objects in the opposite direction are т??antispinwardт?? ...

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• Hubble Space Telescope sees into Omega Centauri's future | Astronotes
• The Mystery Object of M82 | Astronotes