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1. Benchmarking the calculation of stochastic heating and emissivity of dust
Context. Thermal emission by stochastically heated dust grains (SHGs) plays an important role in the radiative transfer (RT) problem for a dusty medium. ... Aims: We define an appropriate problem for benchmarking dust emissivity calculations in the context of RT simulations, specifically including the emission from SHGs. ... It also includes a series of analytically defined radiation fields to which the dust population is to be exposed and instructions for the desired output. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~kgordon/papers/2015A&A...580A..87C.html -- 5.1 Кб -- 21.01.2016
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2. Calculation of binary NS coalescence rates
... We have calculated the binary coalescence rate with time using the ``Scenario Machine'' code, which allows us to simulate evolution of large ensembles of binary stars in an artificial galaxy using a Monte Carlo method (see Lipunov 1992, Lipunov et al 1994, 1995 and references therein). ... The source evolution in a galaxy with given star formation rate is thus calculated as , where is the redshift at the turn-on of star formation, which is the second important parameter of the model. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/henning/node2.html -- 7.5 Кб -- 20.08.1996
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3. Airmass Calculation
... In most cases it will however be necessary to compute an appropriate airmass using the COMPUTE/AIRMASS . ... It is important to keep in mind that ``mean airmass'' and ``mean atmospheric extinction correction'' are different from the values at mid-exposure, especially for larger zenith distances. ... For reasonable combinations of exposure time and zenith distance, the weighted mean airmass supplied by COMPUTE/AIRMASS should be appropriate. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node136.html -- 3.4 Кб -- 23.02.1996
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4. STDA files
... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio- measurement treatment. The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/vprokhor/descr/stda.htm -- 14.7 Кб -- 12.05.1999
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/vprokhor/descr/stda.htm -- 14.7 Кб -- 12.05.1999
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5. Methods and instruments to measure/monitor major site properties
... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...
[ Сохраненная копия ]  Ссылки http://site2010.sai.msu.ru/section/2 -- 9.2 Кб -- 09.04.2016
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6. may_iss
... Theoretical and experimental investigations electrodynamical characteristics of RATAN-600. Calculation of the two- and thee-mirror periscopic systems of RATAN-600 and optimization their characteristics. Measurements and calculation of the antenna noise temperature of the RATAN-600 radio telescope. ... Calculation and experimental investigation of the characteristics of the radio telescope RATAN-600 when the primary feed is shifted from the focus. ... The "radio-Schmidt telescope" mode. ...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/len/may_iss_e.htm -- 6.5 Кб -- 24.02.2010
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/len/may_iss_e.htm -- 6.5 Кб -- 24.02.2010
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/len/may_iss_e.htm -- 6.5 Кб -- 24.02.2010
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7. http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf
National Research Institute for Physical-Technical and Radio Engineering Measurements IMPROVEMENT OF THE SOFTWARE BERNESE FOR CALCULATION OF THE EARTH ROTATION PARAMETERS ACCORDING TO THE DATA OF SATELLITE LASER RANGING (LAGEOS 1, LAGEOS 2) IN THE MAIN METROLOGICAL CENTRE OF THE STATE TIME AND FREQUENCY SERVICE Tsyba E. N., Kaufman M. B. 141570, Mendeleevo, Moscow region, Russia tel. +7-903-194-7575; tsyba_e_n@mail.ru ABSTRACT Preparatory ...
[ Текст ]  Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf -- 679.3 Кб -- 07.10.2014
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8. East Siberian Center for the Earth's Ionosphere Research. SW radiosignal
Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...
[ Сохраненная копия ]  Ссылки http://rp.iszf.irk.ru/esceir/lchmen/predicten.htm -- 8.0 Кб -- 02.06.2001
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9. Calculating the PNT keywords
... The RA_PNT , DEC_PNT and PA_PNT keywords, together with the AVRG_PNT keyword which records the type of average used, are meant to describe the average value of the spacecraft attitude during the exposure. ... attsource =`binned': whatever values of the PNT keywords calculated by attbin and stored in the inbinnedattset dataset are simply copied over. attsource =`odf': PNT values are sought from the header of the dataset pointed to by pntkwdset . ... In this case AVRG_PNT is set to `FIXED'. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/evproject/node8.html -- 5.1 Кб -- 09.07.2007
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10. http://hea-www.harvard.edu/AstroStat/HEAD2008/poster_tloredo.pdf
... Population, Observables Measurements Inverse methods try to undo the survey process by correcting catalog estimates. ... Simulations Simulate a (peak) flux survey catalog (producing a number counts or log N ­ log S distribution): · Draw source fluxes from a 3-parameter slowly rolling power-law distribution (0 is a fiducial flux): - C2 log () = log 0 - C1 log 0 Amplitude at 0 Log slope at 0 Rate of change of log slope log () Accounting For Source Uncertainties Ignoring ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/AstroStat/HEAD2008/poster_tloredo.pdf -- 223.4 Кб -- 01.04.2008
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11. Astigmatism II
... The SDSS 2.5-m primary mirror is supported in a manner similar to the Apache Point Observatory 3.5-m telescope primary. ... The axial support is provided by 48 air pistons. The pistons have the same diameter thereby applying equal forces with the same air pressure. ... Each group supports a 120њ sector of the mirror. ... Figure 1: CAD drawing showing the 2.5-m primary mirror and the locations of actuators (green circles) These actuators apply forces (10*cos2 N) to correct astigmatism. ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19980823_1ryAstigII/19980823.html -- 10.1 Кб -- 25.08.1998
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12. Izmccd
... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...
[ Сохраненная копия ]  Ссылки http://www.izmccd.puldb.ru/izmccd9e.htm -- 9.9 Кб -- 17.09.2007
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13. Calculating the Position and Velocity Components of HST
... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/aket.html -- 12.3 Кб -- 03.11.2000
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14. Database of Optical Constants -- Level: welcome
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. ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/JPDOC/ -- 10.8 Кб -- 19.11.2010
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15. (Untitled)
As it is in Ephemerides task, O–C can be calculated with different accuracy. ... It presents three modes of accuracy. One can calculate position of a minor planet by the formulae of elliptic motion starting from the fundamental set of elements for given minor planet. ... Also there is possibility to calculate positions taking into account perturbations from different sets of perturbing bodies by numerical integration ( Integration mode). ... Accuracy of integration is equal to 10**(–10) AU. ...
[ Сохраненная копия ]  Ссылки http://www.ipa.nw.ru/PAGE/FUNDAMENTAL/LSBSS/winample_guide/user9ak9.htm -- 3.3 Кб -- 10.04.2016
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16. Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...
[ Сохраненная копия ]  Ссылки http://www.mrao.cam.ac.uk/~bn204/alma/memo-infer.html -- 14.9 Кб -- 04.04.2016
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17. http://zebu.uoregon.edu/~uochep/talks/talks06/sinev2-10-06.pdf
... Gives covariance Matrix for fitted track ­ Can calculate covariance Matrix without hits ­ simulate hits itself and use only detector geometry description (compact.xml file) · Hits smearing ­ First combine hits (SimTrackerHit) from the same particle in the detector layer (there may be few of them because Geant generates many hits along track) ­ Smear resulting TrackerHit and assign measurement matrix to it according to given detectors resolutions 10/26/ 2006 Nick Sinev , ...
[ Текст ]  Ссылки http://zebu.uoregon.edu/~uochep/talks/talks06/sinev2-10-06.pdf -- 180.0 Кб -- 07.12.2006
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18. casacore: casa::Aberration Class Reference
... Classes . ... casa::Aberration . ... More... #include < Aberration.h > . ... Aberration (const Aberration &other) . ... operator() ( Double epoch) . ... Actual Aberration for a certain Epoch is calculated by the () operator as Aberration(epoch), with epoch Double MJD, values returned as an MVPosition . ... Double casa::Aberration::aval [3] [private] . ... Double casa::Aberration::checkEpoch [private] . ... Double casa::Aberration::dval [3] [private] . ... const Double casa::Aberration::INTV [static]...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1Aberration.html -- 40.4 Кб -- 14.02.2011
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19. http://selena.sai.msu.ru/Ber/Publications/ms40/88_Yamashita%20et_al.pdf
Microsymposium 40, abstract 88, 2004 (A4 format) GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL NEUTRON CAPTURE REACTIONS: EXPERIMENT AND SIMULATION FOR PLANETARY GAMMA-RAY SPECTROSCOPY. ... Then the calculation can be restarted by producing gamma rays and let them trans- GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL NEUTRON CAPTURE REACTIONS: N. Yamashita et al. port and react, with initial energies determined the outside multiplication and initial locations wh neutron capture reaction took place. ...
[ Текст ]  Ссылки http://selena.sai.msu.ru/Ber/Publications/ms40/88_Yamashita%20et_al.pdf -- 253.8 Кб -- 17.02.2009
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20. Meade Instruments Corporation - How to Calculate Power
... Meade Instruments Corporation . ... How to Calculate Power . How to Calculate Power: The magnification, or power, at which a telescope is operating is a function of the focal length of the telescope's main (objective) lens (or primary mirror) and the focal length of the eyepiece employed. ... Example: The Meade DS-2070AT telescope has an objective lens focal length of 700mm; when this telescope is used with a 25mm eyepiece, a power of 700/25 = 28 power (written as "28x") results. ... about meade | ...
[ Сохраненная копия ]  Ссылки http://www.meade.com/support/power.html -- 9.5 Кб -- 01.02.2006
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