XMM-Newton Science Analysis System . ... The tabulated magnitudes are those that have been computed by ommag- as mentioned in the previous section, omsrclistcomb will have averaged all the magnitudes from sources that it considers to be the same. Omsrclistcomb uses a colour table that it loops through to see if the relevant instrumental magnitudes (one of U, B, V, UVW2, UVW1, UVW2 and UVM2) are present for the calculation of the instrumental colour. ... XMM-Newton SOC/SSC -- 2007-07-09 ...

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• Instrumental (Vega) Magnitudes and Colours
• Standard Magnitudes and Colours
• Standard (Johnson) Magnitudes and Colours

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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• Refining the Guide Star Catalog: Plate Evaluations
• Calculating the Position and Velocity Components of HST
• Modelling Spectro-photometric Characteristics of Nonradially Pulsating Stars

Next: Auxiliary utilities Up: MIDAS utilities for Previous: Time series analysis . The commands COVAR/TSA serves for the calculation of the covariance and autocovariance functions. ... COVAR/TSA -- . ... Edelson and Krolik's (1988) method is used for the estimation of the cross correlation function (CCF) of unevenly sampled series. ... DELAY/TSA -- . delay analysis with interpolation: The command computes the time lag function for two time series by the Press et al. (1992) method. ...

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• Airmass Calculation
• Spectral Analysis
• HyperLEDA documentation: parameter: bt

Next: Photometry Up: Regions and Source Parameters Previous: *imcnts* - Find counts . This task (developed for use with optical images, but also useful with x-ray data) will quickly compute location, size, ellipticity, and position angle of sources. ... User can generate contour plots of any portion of the image and count rates in slices through the image. The program is advertised as ``quick [optical] photometry''. input file: rp110590_im1.imh . output file: logfile . ... Photometry . ...

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• The AstroStat Slog Blog Archive Survival Analysis: A Primer
• *xflux, hxflux* - Calculation of X-ray Flux
• Comments on: Survival Analysis: A Primer By: planet facts By: vlk By: hlee By:

... Galaxy Evolution home . Cavendish Astrophysics . ... Cosmological evolution of star-forming galaxies . ... Local Information . ... Mappings: Mappings is a code for the calculation of (optical) line ratios under a wide variety of conditions Mappings (Binette) . ... ZEUS is the fluid dynamics code we use for our simulations and is available on the Beowulf cluster and the Suns. It comes in a variety of flavours: ZEUS-3D full 3D code with lots of other options; can also run 2D simulations . ...

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• Computing dispersive atmospheric delay with AATM Bojan Nikolic web pages (r.
• Computing dispersive atmospheric delay with AATM
• OptInt PmWiki : Tech Meet 7 | History

... User Guide ] Task: moment Purpose: Calculate moments of a Miriad image. ... Key: in The input image. No default. ... Key: mom -3: Velocity at peak intensity using a three-point quadratic fit around the peak (km/s). 2: Peak intensity using a three-point quadratic fit (units same as individual channels). ... The moments are calculated independently for each pixel using spectral channels with intensity satisfying the specified clip range. ... Key: axis Axis for which the moment is calculated. ...

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• Perturbation Analysis
• AWS data analysis
• Analysis

... HST . ... Computing the true count rates for digital data. ... The following equation is used to find the count rate. x = ( raw counts / sample time ) . ... True count rates for digital data are corrected by using the first equation for a point source and the second for an extended source. a = ( y - pre_amp - darkrate ) / ( highvolt x pt_effic ) . ... True photocurrents (count rates for analog data) are corrected by the first equation for point sources and the second equation for extended sources. ...

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• Analysis of in B-Type Stars
• WFPC-2 ETC Help
• ACS Instrument Handbook

Computer Ephemeris . ... Content of the Computer Ephemeris is the same as content of Soviet Astronomical Almanac (Ezhegodnik), but fully original algorithms and computer methods of calculations were used. Your requests for Computer Ephemeris for years before 2014 and your comments on its contents please direct to the author charlie@mail.univ.kiev.ua . ... Keywords: Computer Ephemerides, Computer Ephemeris, Computer Almanac, Computer Calendar. ...

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• Reduction quantities for Dynamical time. Explanations for Computer Ephemeris.
• Second order reduction quantities. Explanations for Computer Ephemeris.
• Reduction quantities for Sidereal time. Explanations for Computer Ephemeris.

NOTE: Analyz routines for L-band receivers use OLD gain & noise diode values! Analyz is a data analysis program written at Arecibo back when you reduced (and took) Arecibo data on a Harris computer. ... So if you want a fairly simple program which can rapidly & efficiently reduce your spectral line data, then you may want to consider using Analyz. ... Information to help you reduce your data in Analyz: . Phil Perrilat's basic analyz routines for data taken with the spectral line correlator . ...

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• Some Useful Routines for On-Line Data Analysis
• Spectral-Line Observing
• spectrometer counts to kelvins

... Our computer services are free. One of our main computer priorities is providing e-mail access. ... Moscow high schools, math teachers, IUM students, and mathematicians can request UUCP accounts from us, for sending and receiving email from home. ... To get a UUCP account, one should arrive to MCCME in person and contact system administrator assistants ( room 306 , phone 2410500). Users who visit MCCME often can use e-mail in our computer room . ... Sergey Dubov, <dubov (at) mccme.ru>. ...

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• Workshop on geometric analysis and spectral theory. Abstracts
• MCCME: Computer facilities - network
• Computers

Next: CONCLUSION Up: CHIRPLET TRANSFORM SUBSPACES Previous: Nondilational Chirplet Transform . Suppose we choose a windowed sinusoidal FM signal for our mother chirplet. Such a signal has a frequency that periodically rises and falls (much like the vibrato of musical instruments or the wail of a police siren). ... Figure 14 . ... Using the warbling mother chirplet, we also computed the ``dilation-dilation'' ( ) plane of the chirplet transform (Fig. 16 ) for the pendulum data. ...

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• Explanations for solar physics computing page
• The Chirplet Transform: Physical Considerations
• The Frequency-Frequency (FF) Plane

The aim of this section of the course is to enable you to use simple computer programs to solve a variety of common astronomical tasks. ... I have (somewhat arbitrarily) decided to use Python for this course, because it seems to be gaining popularity fast for astronomical data handling, and because some of you will have encountered it at the ATNF course. ... We've put Python (plus all relevant libraries) on the Stromlo Linux computers moron and maggot. ... Now log in to moron (or maggot). ...

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• COALA - Wolfgang Kerzendor
• Computer Lab
• Workshops and computer labs

... A well known problem with EOP prediction is that a prediction strategy proved to be the best for some testing period and prediction length may not remain as such for other period of time. In this paper we consider possible strategies to combine EOP predictions made using different analysis techniques to obtain a final prediction with the best accuracy corresponding to the least prediction error between input predictions. ... C2 ґ best previous prediction for given length. ...

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• Pulkovo EOP and Reference Systems Analysis Center (PERSAC)

... It is precisely these values that are displayed as O ? C. In case computed positions of minor planet for all or some part of moments are found without accounting for perturbations, the corresponding moments are followed by asterisk (without perturbations are computed positions for all minor planets if moments of their observations lie outside the basic interval of 16 months or for ordinary ... The coordinate system and type of computed positions are indicated in status bar. ...

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• IAA GPS Analysis Center
• ENGAMPLE

A very important stage in a story of formation of any new science is the shift from discussion of situation which are possible but do not occur in practice due to some reason to recognition of real phenomena of interest. ... We suggest to consider computer viruses as this new specific form of life which is coming in the contact with our form of life. ... Computer life has been created by human being, the role of independent evolution of computer viruses seems to be still negligible. ...

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The original files with the data were in different formats. ... Such files were named "standard data files" and linked to the database. They can be easily transformed to any desirable format by a code. Here we present two simple computer programs of this kind. ... When running the code, you can specify columns in the output file: wavelength, energy (eV) or wavenumber (cm -1 ) as the first column, and complex refractive index or dielectric function as the second and third columns. ...

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• Coupled dipoles method (Purcell-Pennypacker, CDM)
• Database of Optical Constants -- Level: welcome
• Database of Optical Properties -- Level: subpage

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...

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Tail Probe is one of the satellites of the INTERBALL program. ... Collection of the orbital elements | ... Flight situation analysis during operations scheduling . ... Two stages of the orbital situation analysis are presented: . ... The satellites motion calculation during the flight situation analysis is based on the orbital elements, determined by the Ballistic center at KIAM RAN. The modified (by backward integration) orbital elements are usedduring the aposteriory situation analysis. ...

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• INTERBALL AURORAL PROBE SITUATION ANALYSIS
• INTERBALL MAGION 5 SITUATION ANALYSIS
• INTERBALL Situation Analysis

The beam pattern and the polarization characteristics . of the radio telescope RATAN-600 . The Mueller matrix elements was computed via formulas [1]: . ... The BP were computed by the aperture method, proceeding from the fild distribution in the aperture of the primary mirror. The components of the main and cross-polarization components of the electric field in the vertical aperture of the primary mirror was computed in Frenel diffraction approximation. ...

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• shmidt_e
• Description of algorithm
• Mathematics: <math.h>

Armagh Observatory . ... Email Submission Address: lfy arm.ac.uk . ... The closing date for receipt of applications: 30/06/2008 . ... Applications are invited for a 3 year postdoctoral fellowship in Atomic Physics to be held at Armagh Observatory beginning October 2008 or as soon as possible thereafter. ... Further information about Armagh Observatory, and in particular the current research programme, may be obtained by consulting the Observatory's web-site or via email to Gerry Doyle (jgd arm.ac.uk). ...

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• All Ireland Computer Grid
• J.E. Chambers, Research Astronomer
• Research Environment