RTT150 . ... The primary mirror 1 reflects light to the secondary mirror 2 which collects it on the focal surface of system. Lens corrector 3, 4 is placed between focal surface and the secondary mirror which allows to obtain large flat linear field of 300 mm diameter. Focal length, mm . ... Linear field of view, mm . ... Angular field of view . ... 0.017 mm, %, at least . ... 0.029 mm, %, at least . ... The same at the edge of field of view, at 150 mm from the center, . ...

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The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Database of Optical Constants -- Misc: computer codes
• Database of Optical Properties -- Level: subpage

... arfgen (arfgen-1.75.6) [?? ... Generates an OGIP-compliant ([ 4 ]) ancillary response file (ARF). The ARF contains a table listing area values (the column SPECRESP ) for a number of different energy ranges (the columns ENERG_LO and ENERG_HI ). The ARF can be used in conjunction with the response matrix file (RMF, generated by rmfgen ) to allow fitting of particular spectral models against the observed spectral data. ... Implemented . ... Spatial variation of source . ... Bad pixel correction . ...

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... For SIMS (Secondary Ion Mass Spectrometry) analysis, a solid surface is bombarded by primary ions of some keV energy. ... The subsequent mass analysis of the emitted ions provides detailed information on the elemental and molecular composition of the surface. ... Extremely short ion pulses with a duration below . ... By rastering a fine-focussed ion beam over the surface, like an electron beam in an electron microprobe, mass resolved secondary ion images (chemical maps) can be obtained...

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... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

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• Informational system "Evolution of RG"

Instrument Description . ... In addition to functioning as the prime instrument, the WFPC2 can be used for target acquisition in support of other HST instruments, or for parallel observations. ... Then the light falls onto a shallow-angle, four-faceted pyramid located at the aberrated OTA focus, each face of the pyramid being a concave spherical surface. ... A combination of the pick-off mirror and fold mirror actuators has allowed us to correct for pupil image misalignments in all four cameras. ...

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• Target Identification
• HDF-S Project Description
• Python: module spst_getopt

. home . product . gallery . contact .

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• Astrosib - Telescopes of Ritchey-Chretien system - RC360
• Astrosib - Telescopes of Ritchey-Chretien system - RC400
• Astrosib - Telescopes of Ritchey-Chretien system - RC500

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• University of Oregon Center for High Energy Physics - ATLAS
• Potential Energy
• CCD Astronomy Magazine Article Page 4

... Ranger 8 was designed to achieve a lunar impact trajectory and to transmit high-resolution photographs of the lunar surface during the final minutes of flight. The spacecraft carried six television cameras, an optical earth sensor and high-gain antenna for optimum communications, and solar panels to provide power, as well as additional engineering equipment. ... Sufficient video bandwidth was provided to allow for rapid framing sequences of both narrow- and wide-angle television pictures. ...

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• Ranger 7
• Ranger 9
• LonGSp: Optical Design

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if they are available. Bourne shell (sh) . C shell (csh) . TC shell (tcsh) . Korn shell (ksh) . Bourne Again SHell (bash) .

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... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... Previous attempts to match the SDSS plug-plates to the surface of best focus were conducted using only the bending fixture. The analyses performed indicated that by adding a central constraint to the plug-plate deformation process, the plates could be made to match the surface of best focus within an acceptable range of error. ...

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• Fiber Positioning System Performance
• MILT Description

... It consists of two energy-angle analyzers EA-2 and EA-3 for low energy particles, and two identical oppositely directed time-of-flight (TOF) analyzers EM-1-1 and EM-1-2 for high energies. ... Analyzers of low energy charged particles (EA-2 and EA-3). ... The instruments allow to measure simultaneously in eight angular sectors evenly distributed in the angle 2 perpendicular to the satellite rotation axis, and sequentially in 7 energy intervals for each angular sector. ... Interval . ...

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• PhSRM
• ASCII files description
• The Exploration of the Earth's Magnetosphere"

Space Radio Telescope . The space radio telescope antenna consists of a deployable parabolic reflector (10-m diameter) which is made of 27 carbon fiber petals and central solid portion (3 m in diameter). The radio telescope has focus to diameter ratio F/D=0.43 and overall RMS surface accuracy 0.7 mm. ... A concentric feed arrangement at prime focus will provide the possibility of observing at two frequencies or two circular polarizations simultaneously. ... Observing frequency (MHz) . ...

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... They have been used to describe the content of the 105 columns available in the different VizieR tables. ... We present different applications of UCDs: selection of catalogues, based on their content; identification of catalogues having similar fields; automated data conversion allowing direct comparison of data in cross-identifications. ... Metadata for the VO: The Case of UCDs 71 Figure 2. Example of statistics on the different column names and units used in all VizieR tables for one UCD. ...

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• Modelling Spectro-photometric Characteristics of Eclipsing Binaries
• ADASS 2002 Conference Proceedings
• The New JCMT Holographic Surface Mapping System - Implementation

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

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• Aspherical optics

Name: PGPANL Purpose: switch to a different panel on the view surface Category: GRAPHICS File: pgplot.src Author: T.J. Pearson Use: see description below. Description: SUBROUTINE PGPANL(IX, IY) INTEGER IX, IY Start plotting in a different panel. ... Arguments: IX (input) : the horizontal index of the panel (in the range 1 <= IX <= number of panels in horizontal direction). IY (input) : the vertical index of the panel (in the range 1 <= IY <= number of panels in horizontal direction). ...

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• casacore: casa::SpectralList Class Reference
• casacore: casa::RegexBase Class Reference
• Keyin Free-format Input

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Modules . ... Allows the setting of environment variables based on characteristics of the request . ... The mod_setenvif module allows you to set environment variables according to whether different aspects of the request match regular expressions you specify. ... The BrowserMatch is a special cases of the SetEnvIf directive that sets environment variables conditional on the User-Agent HTTP request header. ...

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• The Spectrophotometrical complex in Nasmyth-1 focus
• Full search on archive CATS Description
• mod_dav - Apache HTTP Server

psscale - Create grayscale or colorscale for maps psscale -D xpos / ypos / length / width [ h ] [ -B tickinfo ] [ -C cpt _ file ] [ -E [ length ] ] [ -I [ max _ intens ] ] [ -K ] [ -L ] [ -N dpi ] [ -O ] [ -P ] [ -U [/ dx / dy /][ label ] ] [ -V ] [ -X x - shift ] [ -Y y - shift ] [ -Z zfile ] [ -c copies ] psscale plots grayscales or colorscales on maps. Both horizontal and vertical scales are supported. ... Append h to get a horizontal scale [Default is vertical]. ...

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• The X-ray Optics
• AXAF-Chandra
• The Scenario Machine: Operational Guide

This diagram gives one visual rendering of a table that has been marked up especially for aural rendering. The table has a centered caption above it that reads "Travel Expense Report". ... In order to group information in a useful way, the table has a central column group with three columns, labeled "Meals", "Hotels", and "Transport" from left to right. The table's first column (to the left of the central column group) lists days of travel and labels these days with the city visited. ...

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• Not so well documented Device Helpers in OS/2
• Long description of example illustrating precedence in the collapsing borders
• Long description for italic forms

... The low energy plasma composition spectrometer AMEI-2 is built to be able to find in the low energy range of the phase space (E, q, j) and separate the fluxes of the major ion species in the magnetotail - H+, He++, He+ and O+, and analyse their energy and angular distributions. ... Electrostatic angular scanning in one direction and the use of the spin of the satellite to sample the other angle give the ability to measure 2-D distributions for each ion specie several times per spin. ...

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• INTERBALL/ELECTRON EXPERIMENT
• Lunar Orbiter 1
• Lunar Orbiter 4