polimodel -- Produce model linear polarization and position angle images . ... Whether to apply random errors to output polarization and position angle values. seed = "" [integer] . ... This task produces a model linear polarization image and corresponding position angle image from an input image assumed to represent intensity (Stokes I parameter). ... A threshold for the input image can be defined such that polarization and position angle are not computed for input values less than this threshold. ...

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• stecf.impol - Package Tasks
• HSTPOLSIM (V1.00) --- April99 --- HSTPOLSIM (V1.00)
• HSTPOLIMA (V1.00) --- April99 --- HSTPOLIMA (V1.00)

polimplot -- Plot a polarization vector map . ... inpol = "" [name] . Input linear polarization image (in %) to plot. inpopa = "" [name] . Input image for position angle of linear polarization vectors (degrees). poi_err = "" [boolean] . ... Name of corresponding polarization position angle error image (degrees). ... This task is a flexible tool for plotting a polarization vector map from two images of the polarization and the position angle of the polarization vector. ...

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• HSTPOLSIM (V2.00) --- November00 --- HSTPOLSIM (V2.00)
• HSTPOLIMA (V2.00) --- February00 --- HSTPOLIMA (V2.00)

... This problem affects all FITS-files generated between 16 September and 9 November 2004. ... DETAILED DESCRIPTION -------------------- AFFECTED KEYWORDS : The affected keywords are: CRVAL2A and CRVAL3A (beam position on sky in RA/Dec) CRVAL2B and CRVAL3B (beam position on sky in Az/ZA) CRVAL2G and CRVAL3G (beam position on sky in l/b) CROFF2 and CROFF3 (map center offset in RA/Dec) CROFF2B and CROFF3B (map center offset in Az/ZA) BEAM_OFFRAJ and BEAM_OFFDECJ (total beam ...

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• http://www.naic.edu/~astro/aotms/backends/96-01.pdf
• http://www.naic.edu/alfa/memos/general/fits_fel.txt
• http://www.naic.edu/~astro/aotms/backends/96-01.ps

This page gives the name and meaning of the various parameters which can be queried in HyperLeda through SQL requests . ... real . ... actual error on t . ... log 10 of apparent major axis diameter d25 at 25 mag.arcsec -2 (d25 in 0.1') . ... actual error on logd25 . ... Apparent maximum rotation velocity of gas . ... log 10 of apparent corrected diameter (dc in 0.1') . ... total apparent corrected B-magnitude . ... total apparent corrected U-B color . ... Questions: leda@univ-lyon1.fr ...

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• EXTRACT HOMOGENIZED DATA FOR A LIST OF OBJECTS
• LEDA data base
• THE TEXAS SURVEY: THE PRELIMINARY

... Guider functions . ... Guide Sensor Performance . ... Guide Sensor Sky Coverage/ Star Availability . Guide Star Selection Criteria . ... Guide fiber organization and reach at plug plate . ... Plug plate holes for guide stars are identical to those for science FO . ... FOV for each of 9 guide stars is 7.4 arcsec dia. (0.45 mm FO, Sumitomo IGN-05/10) . ... Selected guide stars must have no neighbor stars within TBD (5 arcsec) radius that have a brightness within TBD (5 mag.) of guide stars . ...

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• Pointing error budget
• Mirror actuators

This document lists, in reverse chronological order, changes made to Tempo since version 11.000 . ... Added binary model BTJ which allow jumps in Keplerian binary parameters at specified times. ... To override default max number of TOAs or parameters use -m or -l, e.g., "tempo 0833.a -m 200000" for up to 200000 TOAs. ... Added NTOA (number of toas) and TRES (residual) to output xxx.par. ... Added output of calculated binary parameters to parameter file. ... TASC parameter allowed for binary model BT. ...

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• Preparing your Data
• uvsfit
• WCSLIB: Diagnostic output

Download Izmccd (~2.7 MB). ... for 1-5 bytes is number of a numbered minor planet, . ... Positions 1-80 file "mpcreportiz.txt" are similar to positions of file "mpcreport.txt". 83-95 – errors of unit weight, . ... If this tag is " 1 0 " , this record contains results of measurements of an image of object (approximation by "PSF"),  . ... 57-66 – error in X (pixels), for first star in a multicentric image, for subsequent it is error in (distance between first star in the image and this), . ...

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... Posts tagged ?nuisance parameter? ... Ah ha~ Once I questioned, ?what is systematic error?? (see [Q] systematic error. Thanks to L. Lyons? work discussed in [ArXiv] Particle Physics , I found this paper, titled Systematic Errors describing the concept and statistical inference related to systematic errors in the field of particle physics. ... Continue reading ?systematic errors? ... Comment . ... ArXiv]4th week, Mar. ... Entries RSS . Comments RSS . ... Entries (RSS) and Comments (RSS) . ...

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• Possible Pitfalls
• Treatment of Errors
• Calculation of errors in smoothed arrays

... 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. ...

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• A New Stable Method for Long-Time Integration in an N-Body Problem
• The ``stecf'' IRAF Layered Package
• A Method for Minimizing Background Offset Errors When Creating Mosaics

... Impact of Covariance Information on the Orientation Parameters Between Radio Source Position Catalogs, IVS 2012 General Meeting Proceedings, p.339­341 http://ivscc.gsfc.nasa.gov/publications/gm2012/sokolova.pdf Impact of Covariance Information on the Orientation Parameters Between Radio Source ... IVS Analysis Centers provide these catalogs in a standard IERS format, where together with radio source positions and other relevant information, RA/DE correlations are reported. ...

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• http://www.gao.spb.ru/english/as/j2014/presentations/kurdubov.pdf
• http://www.gao.spb.ru/english/personal/malkin/publ/zm09c.pdf
• http://www.gao.spb.ru/english/personal/malkin/publ/zm12e.pdf

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

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• Polarization efficiency: size/shape/orientation effects

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

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• The Pul-3 astrometric catalogue (Second edition). Data access form.

This WWW form allows the user to list selected portions of the NRAO/VLA Sky Survey (NVSS) radio source catalog. ... Until the completion of the survey the source catalog will NOT cover the entire region of the survey and care must be exercised in interpreting the results of a catalog search. ... The second parameter in the "Search radius" box or one of the optional items in a position list can be used to specify a region in which to look for other sources. ... An example of a position list entry is: . ...

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• exchange.h File Reference
• NVSS Source Search ($Revision: 1.6 $ - running v2.17)
• write_fits.c File Reference

... First, we computed the mean errors of orbit parameters on the assumption of the linear connection of them with observation errors and then we compared obtained estimates with those resulting from the assumption of the nonlinearity of this connection. Secondly, we correlate orbital parameters and their errors obtained by the method of the least modulus with those obtained by the least-squares method. ...

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• (Untitled)
• LAB Ephem. Astronomy-ERA
• Keywords_107

... Forum: The Linux Kernel Hackers' Guide . Keywords: kernel tuning, file handles, Bus error . ... In a recent comp.os.linux. article I saw a reference to tunable kernel parameters, which I think may help me with a problem I'm having with expireover on a Debian 1.2, Inn 1.4 unoff4 news server. ... I'm runnming 2.0.27, 64mb ram, raid 0 on three 2gb drives for /var/spool/news. ... I've been looking for some docs on tuning kernel parameters like file handles, and can't seem to find it. ...

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• Increasing number of open files parameter
• mod_macro - Apache HTTP Server
• Program parameters

... 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. ...

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• The INTERBALL Auroral PROBE orbital elements
• The INTERBALL Tail PROBE orbital elements
• Magnetic mapping

The Texas survey of radio sources covering -35.5{deg} < {delta} < 71.5{deg} at 365MHz . ... We present the Texas Survey of discrete radio sources between -35.5deg and 71.5deg declination (B1950), which was carried out at 365MHz with the Texas Interferometer during 1974-1983. ... The Texas Survey . ... The sources in the simpler model. ... Right Ascension 1950 . ... field separator . ... Some sources came from Version 6 of the Texas Survey ('TS6' in strp field) or Version 7 ('TS7' in strp field) . ...

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System parameters on Digital UNIX . ... Digital and Cray use the number of bytes as the KIND -parameter. ... LOGICAL Default byte word KIND number = 4 1 4 LOGICAL Default double quad KIND number = 4 8 16 INTEGER int15 int31 int63 KIND number = 2 4 8 digits = 15 31 63 radix = 2 2 2 range = 4 9 18 huge = 32767 2147483647 9223372036854775807 bit_size = 16 32 64 REAL single double quad KIND number = 4 8 16 digits = 24 53 113 maxexponent = 128 1024 16384 minexponent = -125 -1021 -16381 ...

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• NAG's Fortran 90
• Keyword arguments and default arguments
• Dos32Profile API

... Exploring the physics of Type Ia supernovae through spectral analysis . ... Their progenitor scenario as well as the details of the explosion mechanism remain a mystery. ... It produces a supernova spectrum for a given luminosity, photospheric velocity, time since explosion and several elemental abundances. Tweaking these parameters to produce a spectrum that fits an observed spectrum is a complex, as of yet, manual task. ... The search space is large and complex. ...

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• pynifs.velfit

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

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• harak_e
• di_eks
• Determination of atmospheric parameters and calculation of chemical composition