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1. Background Definition
Next: Bivariate polynomial interpolation Up: Echelle Spectra Previous: Removal of particle . The estimation of the background is one of the critical points in the reduction of echelle spectra for two reasons. ... diffuse light in the interorder space coming from adjacent orders. sky background spectrum . ... These locations are defined when performing the order definition (command DEFINE/ECHELLE or DEFINE/HOUGH ) and can be displayed by command LOAD/ECHELLE . ... Sky background definition . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node164.html -- 5.8 Кб -- 23.02.1996
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2. Making a background map
... In asmooth at present sources can be removed and the local background interpolated over their positions. ... To create such a map, the user should supply asmooth , via the parameters withsrclistset and srclistset , with a list of sources produced by either eboxdetect or emldetect . ... For each source, asmooth calculates an elliptical boundary, being the locus at which the point spread function (PSF) of the source decreases to some constant value times the value of the local background. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/5.4.1/doc/asmooth/node10.html -- 5.6 Кб -- 10.01.2003
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3. casacore: casa::LogHolderIterEntry Class Reference
... Files . ... casa::LogHolderIterEntry . ... Definition at line 364 of file LoggerHolder.h . ... Definition at line 367 of file LoggerHolder.h . ... Definition at line 370 of file LoggerHolder.h . ... Definition at line 373 of file LoggerHolder.h . ... Definition at line 376 of file LoggerHolder.h . ... Definition at line 390 of file LoggerHolder.h . ... Definition at line 386 of file LoggerHolder.h . ... Definition at line 392 of file LoggerHolder.h . ... Definition at line 379 of file LoggerHolder.h...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1LogHolderIterEntry.html -- 24.1 Кб -- 14.02.2011
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4. Siding Spring Survey
T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~rmn/ -- 11.4 Кб -- 23.12.2011
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5. http://www.stsci.edu/hst/HST_overview/documents/multidrizzle/ch44.html
The astrometric information in FITS images (also referred to as the WCS) is stored in the header using a standard set of keywords. The reference location is defined by the following keywords: . ... CD1_1 is the partial of first axis coordinate w.r.t. x . ... This facilitates proper translation of pixel to sky coordinates for science analysis, and allows for all the necessary shifting information for each image to be stored in the header of the image itself for future alignment reference. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/multidrizzle/ch44.html -- 10.1 Кб -- 05.02.2013
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6. What would cause Earthт??s orbit to become more circular instead of its present
... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... What would cause Earthт??s orbit to become more circular instead of its present elliptical orbit, and has this ever happened before? ... Gravitational interactions among the planets cause the ellipticities of the orbits to oscillate periodically by a few percent over millions of years. Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/magazine/ask-astro/2012/04/orbital-shapes -- 63.1 Кб -- 10.04.2016
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7. Stellarium: StelLocation Class Reference
Stellarium 0.12.3 . ... Classes . ... FileљStructure . ... StelLocation Class Reference . Store the informations for a location on a planet. More... #include < StelLocation.hpp > . QStringљ . ... Output the location as a string ready to be stored in the user_location file. ... createFromLine (const QString &line) . ... Definition at line 26 of file StelLocation.hpp . ... line . ... Output the location as a string ready to be stored in the user_location file. int StelLocation::altitude . ...
[ Сохраненная копия ]  Ссылки http://astro.uni-altai.ru/~aw/stellarium/api/classStelLocation.html -- 22.3 Кб -- 28.02.2014
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8. SETI League Guest Editorial -- Past - Present - Future
Guest Editorial , July 2006 . Past ? Present ? Future . ... SETI, the quest for reasonable signals from Space, is aimed at the Past. ... From here on Earth, we can say with good reason that conducting both searches (SETI) and transmission (METI) of reasonable signals, we appear poised just halfway between the Past and the Future: namely, in the Present! ... This editorial was submitted in response to Their Past, Our Future , by SETI League executive director emeritus H. Paul Shuch. ...
[ Сохраненная копия ]  Ссылки http://www.cplire.ru/html/ra&sr/irm/motion.html -- 9.8 Кб -- 12.12.2006
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9. http://site2010.sai.msu.ru/static/doc/TTravouillon_TMT_site_testing_site2010.pdf
Lessons learned from the Thirty Meter Telescope site testing Tony Travouillon Sebastian Els, Angel Otarola, Reed Riddle, Matthias Schoeck, Warren Skidmore TMT.XXX.PRE.05.0XX.DRF01 1 Introduction TMT and its Site testing. Important choice before going on site. ... Considerations during analysis of the data. TMT.XXX.PRE.05.0XX.DRF01 2 Some Background about the TMT Site Testing TMT is a 30m, segmented, RitcheyChretien telescope design. ... ASCA Cloud Cover Analysis So how do we do it in practice? ...
[ Текст ]  Ссылки http://site2010.sai.msu.ru/static/doc/TTravouillon_TMT_site_testing_site2010.pdf -- 2354.3 Кб -- 18.10.2010
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10. Conformance: requirements and recommendations
... SGML . The text/html content type . In this section, we begin the specification of HTML 4.0, starting with the contract between authors, documents, users, and user agents. ... These recommendations are not normative and conformance with this specification does not depend on their realization. ... An HTML document is an SGML document that meets the constraints of this specification. ... A user is a person who interacts with a user agent to view, hear, or otherwise use a rendered HTML document. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~ustiansk/web/conform.html -- 12.1 Кб -- 24.04.1998
[ Сохраненная копия ]  Ссылки http://crydee.sai.msu.ru/~vab/html.doc/html40/conform.html -- 12.1 Кб -- 24.04.1998
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11. Definitions of terms used to describe Apache directives
Each Apache configuration directive is described using a common format that looks like this: . ... This indicates the format of the directive as it would appear in a configuration file. This syntax is extremely directive-specific, and is described in detail in the directive's definition. ... If the directive has a default value ( i.e. , if you omit it from your configuration entirely, the Apache Web server will behave as though you set it to a particular value), it is described here. ...
[ Сохраненная копия ]  Ссылки http://neptun.sai.msu.su/manual/mod/directive-dict.html -- 13.1 Кб -- 15.10.2001
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12. ST-ECF Grism Spectrum Software for NICMOS Grism Data
Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...
[ Сохраненная копия ]  Ссылки http://www.stecf.org/conferences/sardinia/node13.html -- 16.5 Кб -- 12.06.2006
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13. ASP: The New and Improved Hubble Space Telescope
... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/26/hubble2.html -- 16.0 Кб -- 02.10.2012
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14. LYNX
. Echelle spectrometer . LYNX For consultations or other requests, please, contact with Dr. Maksim Yushkin: maks@sao.ru .
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/ssl/sdev/LYNX.html -- 4.0 Кб -- 02.10.2012
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/ssl/sdev/LYNX.html -- 4.0 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/ssl/sdev/LYNX.html -- 4.0 Кб -- 01.10.2012
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15. Extragalactic Novae
... CBET now has an M31 novae page , M33 novae page , and an M81 novae page . ... Also, see W. Pietsch's M31 (apparent) optical nova catalogue , M33 novae catalog , and M81 novae catalog Please note that I do not keep track of galactic novae . Nova M81 2016-04a? (= PNV J09560598+6900401 ), ATEL 8904 discovered 2016/04/02.876 by Kamil Hornoch and H. Kucakova . ... Nova M31 2016-03a? (= PNV J00421695+4059098 ), CBAT TOCP discovered 2016/03/01.721 by unknown . ... other extragalactic Novae from 2016 . ...
[ Сохраненная копия ]  Ссылки http://www.rochesterastronomy.org/novae.html -- 14.2 Кб -- 09.04.2016
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16. SPUTNIK home page
Instrument . ... Scanning TV-sensor with on-board data recording system for global coverage mode . ... recording, direct transmission . ... IR-radiometer for global coverage and direct data transmission modes . ... The scientific instrument package onboard the Meteor-3 spacecraft provides for regular instant acquisition of images of cloudiness and Earth surface in visible and infra-red bands, data on air temperature and humidity, sea surface temperature and clouds temperature. ...
[ Сохраненная копия ]  Ссылки http://sputnik.infospace.ru/meteor/engl/meteor_1.htm -- 14.8 Кб -- 21.01.2002
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17. http://star.arm.ac.uk/highlights/2012/603/bp_mag/VisualAnalysis/121107/121107_05.pdf
... Positive Start of the data set. fragments present at the centre of the region and negative ones scattered around. Two major negative fragments locate at both east and west sides of the positive ones. At the west, positive fragments touch the negative ones. ... 01:45 The BP becomes A few negative fragments emerge near the stronger and positive ones at the east and move toward bigger. them. At the west, positive fragments keep moving toward the negative ones and cancellation continues. ...
[ Текст ]  Ссылки http://star.arm.ac.uk/highlights/2012/603/bp_mag/VisualAnalysis/121107/121107_05.pdf -- 42.1 Кб -- 23.07.2012
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18. Database of Optical Properties -- Level: subpage
Our introductory notes presented by V.G.Farafonov give the definitions of such basic optical characteristics of non-spherical scatterers as amplitude and scattering matrices, different cross-sections, asymmetry factor, etc. Special attention is paid to the differences between these definitions and those for spherical scatterers. ... 2000). The PostScript version of the notes is here . ... Created by V.I. Last modified: 10/05/03, V.I. ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/DOP/1-DEFS/index.html -- 2.3 Кб -- 19.11.2010
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19. Wavelength Calibration at Moderately High Resolution
... The calibration of astrophysical spectra in wavelength based on calibration lamp data suffers from different kinds of uncertainties. Besides inaccuracies in the observational phase, common data reduction practice adds ``pixelation'' errors, due to the fact that the centering method does not use the correct PSF. These model mismatch errors depend, for a given feature, on the sub-pixel location of the line center (David & Verschueren, private communication). ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/decuyperjp.html -- 12.1 Кб -- 03.11.2000
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20. ESO - Observing conditions: definitions
... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Observing conditions . ... Service Mode Philosophy . ... The following definitions of the observing conditions are common between Phase 1 preparation and Phase 2 preparation, as well as between Service Mode and Visitor Mode observations. ... Seeing (Phase 1) and Image quality (Phase2) constraints . ... Please note that observing conditions requested at Phase 2 should match those at Phase 1 (see Service Mode Policies). ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/sci/observing/phase2/ObsConditions.generic.html -- 32.6 Кб -- 10.04.2016
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