... NB The next 2 columns will only be present if the parameter usecat has been set to true . ... Source parameters such as count-rates, magnitudes and semi-major axes, are given in sub-tables-eg the column CORR_RATE is actually a vector column containing the values for each filter. ... QUALITY FLAGS Each source has an associated ``quality flag''. ... 0 1 Source lies above one or more bad pixels . ... QFLAG The quality flag for each source in each filter obtained from the input source-lists. ...

... 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. ...

Next: CCD-Commands Summary Up: Examples and Hints Previous: The Simplest Case . In this case, we have the same frames available as in the previous example, but now we want to correct for bad columns. ... AVERage/IMAge DARKAV = DARK01,DARK02,DARK03,DARK04 . ... MODIfy/COLumn FLATAV,BADCOL FLATAV2 C . MODIfy/COLumn DARKAV,BADCOL DARKAV2 C . COMPute/IMAge DENOM = FLATAV2-DARKAV2 . ... MODIfy/COLumn N5126RF,BADCOL CLR5126 C . MODIfy/COLumn N7794RF,BADCOL CLR7794 C . ...

NIRSpec: from Ramps to Slopes Bernard J. Rauscher for the NIRSpec Detector Subsystem Team NASA Goddard Space Flight Center 31 March 2009 STScI Calibration Summit 1 Topics · Data Format · Pipeline processing · Detector artifacts and pipeline processes needed to correct them · IDL procedures 31 March 2009 STScI Calibration It therefore slightly underestimates the noise of JWST flight systems. ...

... Posts tagged ?isochrone? Aug 30th, 2007| 09:36 pm | ... From arxiv/astro-ph:0708.3758v1 . ... ArXiv] Numerical CMD analysis, Aug. 28th, 2007? ... Category: arXiv , Astro , CHASC , Fitting , Quotes , Stars | ... An Isochrone Database and a Rapid Model for Stellar Population Synthesis by Li and Han . This paper emphasize the binary population: CMD fitting with the binary population synthetic model outperformed to the single population model. ... ArXiv] Isochrone database, Aug. 20, 2007? ...

... 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 . ...

... User Guide ] Task: blcal Purpose: Compute and apply baseline calibration. Categories: uv analysis BLCAL computes and applies baseline-based calibration to a visibility dataset. This reads two datasets. ... Key: vis Normally, this gives the name of two visibility datasets, being the "reference" and the "source" datasets respectively. The reference dataset is used to determine the baseline calibration, whereas the source contains the data that is corrected and written out. ... No default. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

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. ...

. Computer Ephemeris. Lunar phases. Explanations. This page contains the table with 12 rows (one row per month) and 5 columns, labelled with 'New' for new Moon, 'First' for first quarter, 'Full' for full Moon and 'Last' for the last quarter. Each cell in the table contains three numbers: day, (month is possibly to read as first word in the same row), hours and minutes of the phenomenon. Hours and minutes are subdivided by column symbol (':').

... bandpass correct . baseline removal When doing line searches, the baseline removal might remove Tsys from every spectra. ... The simplest way to do this is to subtract the mean value of the bandpass corrected spectra. ... Just use the mean value and forget about it. ... Remove a robust average rather than the median. ... The dashed horizontal lines are the mean values computed between the vertical lines (channels 600 thru 1800) for the 3 techniques: black:mean, red: median, green:robust average. ...

Fringe parameters are the complex visibility, the squared visibility amplitude, and the total count rate. These can be computed from bincounts using the functions fringevis , fringevissq , and fringenphot . v=fringevis(bincounts(1,*,*,*)) . ... Instead of computing the modulus of the complex visibility, we use a different estimator for the squared amplitude. ... I have verified with simulated fringe frames that this procedure results in the correct squared visibility amplitudes. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

Results of analysis . ... IAA EOP Service . ... EOP series are regularly submitted to the IERS, and also are available at the IAA EOP Service page. EPN coordinate time series . EUREF Permanent GPS Network (EPN) coordinate time series is computed from analysis of available EUREF weekly solutions. ... Second solution is based on independent combination of individual EPN Analysis Centers' solutions . ... USNO GPS Timing Operations . ... GPS Time Series . ... EPN : European Permanent GPS Network . ...

... PUL VLBI Analysis Center . ... Pulkovo EOP and Reference Systems Analysis Center (PERSAC) is located at the Pulkovo Observatory . ... Processing of VLBI , GPS, and optical observations aimed at analysis of the Earth rotation, station displacement, and celestial reference system. ... Celestial Pole Offset (CPO) and Free Core Nutation (FCN) . Four daily updated CPO and FCN series (models) are provided. ... File fcn1.dat contains the ZM1 FCN model with variable amplitude and phase. ...

Sample page from NUMERICAL RECIPES IN FORTRAN 77: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43064-X) Copyright (C) 1986-1992 by Cambridge University Press.Programs Copyright (C) 1986-1992 by Numerical Recipes Software. ... 4.0 Introduction Integration of Functions Numerical integration, which is also called quadrature, has a history extending back to the invention of calculus and before. ... Isaacson, E., and Keller, H.B. 1966, Analysis of Numerical Methods (New York: Wiley), Chapter 7. ...

Analysis of general features of the chaotic system behavior and investigation of the properties of concrete chaotic sources. ... Analysis of information properties of chaotic systems and chaotic oscillations as concrete objects for information processing and comunications. ... This hypothesis gives a possibility of designing simple mathematical structures accomplishing various processes of information processing using chaos. ... Activities | ... E-mail: chaos@mail.cplire.ru ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

D.Chumbalov and A.Romashchenko. ... Proc. 40th International Symposium in Mathematical Foundations of Computer Science (MFCS), Part 1. ... Preliminary version: Proc. 6th International Computer Science Symposium in Russia (CSR), 2011.) download: arXiv:1102.5538 , slides: pdf . ... Bulletin of the EATCS (The Logic in Computer Science Column by Yuri Gurevich) no. 97 (2009) pp. 126--136. download: pdf . ... Lecture Notes in Computer Science 5162 Springer 2008 pp. 527-538). download: pdf . ...

I was born in 1955, finished well-known 2nd school (mathematical) in Moscow, graduated at mathematical department of Moscow State University (MSU). My current positions are sci. researcher at Institute of Mechanics MSU and Network admin at Sternberg Astronomical Institute MSU. ... Hobbies: Anchient history, swimming, yachts, drinking vodka and good vine. ... Rambler in Russia: Some notes (in russian). ... For AstroNet users: see Netiquette in AstroNet (in Russian) for our administrative policy. ...