... Focus Model . ... Interface with Tiny Tim . ... The focus model output can be used directly in this field without unit conversion. ... an image illustrating the modeled PSF characteristics . ... links to the output data files, including the fits images of the distorted and undistorted modeled PSF . ... Tiny Tim author Krist provides some personal science examples of earlier WFPC2 Tiny Tim model application, and summarizes the tool's use over 20 years of HST science operations in Krist Burrows (2011)...

... 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 . ...

... Tilt sensor azswings were done in early may11 to measure the residual platform tilt caused by t he platform beam repair. They showed that the platform was no longer level (1 az term in the tilt data). ... Before these tiedown changes could be installed, the pointing error caused by this correction needs to be measured and included in then model. ... Page 5: 1 az fit to the pointing errors: . ... Page 1: may11 data without 1az fit in model . Page 2: 21jun11 data with 1az fit in sbh model . ...

... CentralProcessor 0.11 documentation . Calibration and Imaging Documentation . The cmodel pipeline task is responsible for extracting a local sky model (LSM) from the global sky model (GSM) and building an image from the components and/or images resulting from the request. ... MPI wrapper> cmodel -c config.in . ... None . ... If Cmodel.gsm.database is set to asciitable then a row/column (space separated) file is used as the global sky model source. ... cmodel (Model Image Generator) . ...

ON THE IMPACT OF THE GALACTIC ABERRATION ON VLBI-DERIVED PRECESSION MODEL Z.M. MALKIN Pulkovo Observatory Pulkovskoe Ch. ... Corrections to adopted precession rate are usually computed from the linear trends in long-term time series of celestial pole offset (CPO), which are the differences between the measured and the theoretical coordinates of the celestial pole. ... CONCLUSIONS We have estimated the impact of GA on parameters of precession-nutation model derived from VLBI observations. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . The Armagh Observatory invites applications for a Postdoctoral Research Assistant in Astrophysics. ... Full details of the post are available at: PDF file . Applicants should submit a CV, statement of research interests, and the names of three referees, who may be approached, to: Human Resources, Armagh Observatory, College Hill, Armagh BT61 9DG, UK (hr arm.ac.uk), to arrive no later than 3pm on 13 March 2015 * . ...

... This information may be for older NA2 filters?? Filters There are 7 filter positions, containing the following filters from Custom Scientific . ... 0 - Bessell R . ... The only filter requiring a focus offset is the ND2 + R filter which will be measured on the sky. ... The red filter attached to the ND2 in position 6 is not the same as the Bessell R. Number 6 is an RG610 red glass filter ( Rolyn 65.1355 ) for the 610 nm cut-on. ... Focus . ... Guider Mechanical Controller (filter and focus) . ...

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. ...

... Model . ... Karpachev A.T., IZMIRAN, e-mail: karp@izmiran.ru . ... To the Model: . The empirical median model of the shape and position of the MIT (Main Ionospheric Trough) in the Northern and Southern Hemispheres is presented. ... Geomagnetism and aeronomy, v.26, № 1, p.63-68, 1986. ... Karpachev A.T., Afonin V.V. Dependence of the ionospheric trough occurrence probability on the season, local time, longitude, and level of magnetic activity Geomagnetism and aeronomy, v.38, № 3, p.79-91, 1998. ...

... Abstract: We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. ... As a general result, clumpy models are less opaque than the corresponding homogeneous models. ... 0.00 0.15 0.50 0.1 0.5 1.0 2.0 5.0 10.0 0.25 X . ... We have also produced several homogeneous models, to compare to the clumpy models. ... Homogeneous and clumpy models with the same tauV have the same dust mass. ...