. Documents latest versions (PS and Latex)

... HST . ... JWST . ... Data . ... Hubble Heritage Project . ... HST Peer Review Process . ... HST Overview . ... Phase I Proposing . ... Cycle 24 Announcement . ... Phase II Cycle 23 . ... Retrieving HST Data . ... ISR-TEL-2011-01, Evaluation of the HST Focus Model . ISR-TEL-2010-03, Phase Retrieval to Monitor HST Focus: II. ... ISR-TEL-2010-02, HST Focus in SMOV4: Strategy for OTA adjustment SI Focus . ... Calibration and Analysis of Grism data from HST . ... HST Focus PSF Stability . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

... The DAL Data Model organises data into a collection of data sets. A data set, which, for aesthetic reasons, will be written as the collocation dataset throughout this document, is an attributable set together with an ordered collection of zero or more blocks. ... an array . ... An array is an attributable set together with an n-dimensional array (1 ? ... Sometimes an array is said to be an attributable set or simply attributable. ... a string . ... an integer value with 8 bits of precission . ...

Cost Estimating Web Site . ... 2005 NASA Cost Analysis Symposium Databases . ... World , European Communities , Other European Countries , Americas , Asia , Africa , General US , US Federal Government , US Department of Defense , Aerospace Industry , NASA , Science & Engineering Handbooks . NASA Cost Estimating Handbook 2004 , Parametric Estimating Handbook .. ... Consumer Price Index , Employment Cost Index , GDP Deflator , Import Price Index , NASA New Start Index , Producer Price Index . ...

... G.P.Panasenko (J.-V.Poncelet, Moscow) Multiscale problems: junction of models of different dimension, applications to hemodynamics. ... Gubkina , Moscow, Russia . ... The workshop is devoted to an important trend in mathematical modeling, the multiscale methods and its applications in biology and medicine. ... It was organized in the frame of the thematic year on the multiscale methods and modeling in biology and medicine organized by the Russian-French laboratory J.-V.Poncelet. ...

Next: Polarimetric Analysis Tasks Up: Image Analysis Previous: Smoothing Images . The task imgen can be used to create an image with a source of some simple model disposition. ... It can also be used to modify an already existing image by a model. In the following example, we subtract an offset (by -1.5 and 3.5 arcsec in x and y from the reference pixel) circular Gaussian model from an image. The Gaussian parameters are given in the keyword spar (height 0.87 Jy, FWHM of 1.7 arcsec). ...

My research interests are focussed on the theory and modelling of accretion processes as well as star and planet formation mechanisms. I am particularly interested in the stability properties of accretion discs, the generation of MHD turbulence and associated angular momentum transport, disk - planet interactions and the origin and characteristics of jets and winds from accreting systems . ... These results have been published in Salmeron & Wardle, 2005, M.N.R.A.S., 361: 45-69. ...

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

... The first EGRET catalog ([ Fichtel et al. 1994b ]) used the galactic diffuse gamma radiation model of Bertsch et al. (1993b). ... For the results presented by Bertsch et al. (1993b), the HI and W radio data were deconvolved by integrating the radio data over a velocity interval determined by the endpoints of each distance interval ( ). ... The Galactic radius limit used in the model has been increased to 30 kpc. ... The CR electron spectrum of Fichtel et al. (1991) was used by Bertsch et al. ...

... Research . ... Laboratory . ... The software developed in the laboratory allows to carry out the whole cycle of the satellite information processing: the initial treatment of the data, coordinate relation, topside ionogram deduction, Ne(h) profiles calculation, global mapping the ionospheric parameters, ionospheric modeling and investigations of the mechanisms of the ionospheric parameters variations with local time, season, magnetic activity level, longitude, latitude, and altitude. ...

Next: INTRODUCTION . ... This article presents the Quality Control system of the Very Large Telescope. ... After a presentation of the QC levels and their implementation for the VLT, the paper discusses the usage of instrument models. ... On the other hand the observatory can control the instrumental configuration, test data analysis procedures, and provide calibration solutions with the help of instrument models. ... Quality Control . ... Instrument models for calibration and quality control . ...

... I am involved in Project Astro, a program to bring astronomers into public schools to assist with teaching students about science and astronomy. ... While there are all sorts of scale model of the Solar System type exercises ( Mitchell Charity's page has a good listing of what's available), none were really tailored towards discovering the spatial relationships of the planets, and in a way that could be done at night as part of a Star Party. ...

The steps in making a pointing model are listed below. ... While tracking the source rise to set, the tiedowns are pulled through a range of about 14 inches (taking 14 minutes) . ... We need a strong point source as sband because we want to measure the peak even when we are out of focus (so we can determine the best za location). ... Time: this takes about 80 hours (averaging 2 hours/source with wait time.. ... so 4 days 12 hours a day will probably work when you include the time for the source. ...

... Vesta Trek: A Digital Model of Asteroid Vesta . ... Credit Copyright: NASA , JPL , LMMP , SSERVI , USGS , DLR Explanation: You can explore asteroid Vesta. Recently, NASA's robotic spaceship Dawn visited Vesta , the second largest object in our Solar System's main asteroid belt, which lies between Mars and Jupiter. ... Dawn departed Vesta in 2012 and is now just beginning to photograph and explore the mysteries of the largest object in the asteroid belt: dwarf-planet Ceres . ... 2011 2012 . ...

Astrophysics Space Missions . ... Space Physics Missions . Data Centers . ... Lectures in Space Science . ... Compton Gamma Ray Observatory (GRO) . ... University of Arizona , Theoretical Astrophysics Program Return to the top of this document . ... JHU/APL AMPTE/CCE Space Science Data Center . ... National Space Science Data Center (NSSDC) . ... Astrophysics Data Facility (ADF) at NASA/Goddard Space Flight Center . ... Center for Atmospheric and Space Sciences/Utah State University (CASS/USU) . ...

... Bojan Nikolic web pages home . Next: Fitting of models of radio spectra --.. ... I describe an approach to fitting and comparison of radio spectra based . on Bayesian analysis and realised using a new implementation of the . ... used maximum-likelihood fitting of radio spectra by allowing objective . ... implementation details of the computer code. ... overall approach described here may also be useful for analysis of other . ... Copyright 2012, Bojan Nikolic feedback welcome ...

... Future seminars . P a s t seminars . Seminar council . ... D.I. Iudin ( Radiophysical Research Institute, Nizhny Novgorod ) . ... We consider dynamic percolation effects on the base of a cellular automaton model on tree-dimensional lattice. ... We assume that such a fine scale spark discharge can initiate breakdowns of the neighbouring lattice bonds ("infect" the neighbours), if the potential difference between the cells exceeds some activation level, which is less than critical one. ...