... This noise can be reduced by replacing the pixels with an average of the surrounding values using a linear filter. In general, the image is convolved by a filter function giving the smooth image . ... The effects of applying linear filters to a CCD frame is shown in Figure . ... The result of the filter is shown in Figure . ... To remove stellar images from a picture of comet Halley, the results of applying different non--linear filters to the frame are given in Figure . ...

... 13th European VLBI Network Symposium . and Users Meeting . on September 20-23, 2016. ... 13th European VLBI Network Symposium and Users Meeting on September 20-23, 2016. ... Year book "Ephemerides of Minor Planets for 2016" on-line . ...

... Transforms a qpoe file according to the specified parameters. ... Any type of filtering can be applied to the input qpoe file, including region filtering. In addition, the size of the output event record can be different from the size of the input event record. Of course, usually one makes the output record equal to or smaller than the input. If the output record size is made greater than the input record, a warning is issued and the ``extra'' part of the record is undefined.) ...

Next: Feature enhancement: normalizing Up: No Title Previous: Feature enhancement: pulsing . The inverse transform is at the core of the best known applications of wavelets: data compaction and numerics. ... Two applications fall within our scope: filtering and denoising. Filtering consists of using only a portion of the wavelet map in the inverse transform process, masking out certain durations. ... Figure 23: Filtered reconstruction of the intermittent signal. ...

... Previous: A Posteriori Guidance for Astronomical Images . ... We present an original algorithm for the recognition of anomalous events in a CCD frame (i.e., cosmic hits, bad pixels etc.) The algorithm is able to distinguish between these events and real features by comparing the standard deviation and the kurtosis of a synthetic PSF, whose width is given by the user, and the corresponding values in a running window, whose size is chosen by the user, in the actual frame. ...

Next: Self-Calibrating with Multiple Models Up: Computation Previous: Computation . Both selfcal and gpscal produce antenna gain tables in the same format as the calibration tasks previously described. ... Finally, if the primary gains have appreciable XY phase (for any antenna for selfcal , but for the reference antenna only for gpscal ), or significant amplitude gain mismatches (for selfcal only) then these corrections should be applied to the data before self-calibration. ...

... JavaScript is Netscape's cross-platform, object-based scripting language for client and server applications. This book explains everything you need to know to begin using core and client-side JavaScript. ... JavaScript Versions . ... Each version of Navigator supports a different version of JavaScript. ... The following table lists the JavaScript version supported by different Navigator versions. ... Each version of the Netscape Enterprise Server also supports a different version of JavaScript. ...

The intent for the original iPhone procurement and use was primarily testing of applications relevant to astronomy and any other productivity tools to support STScI personnel in their functional work in support of Hubble Space Telescope (HST), James Web Space Telescope (JWST), Community Missions Office (CMO), and outreach. ... Initially tested applications available from Apple (early operating system) and also applications that only ran on the "jailbroken" device. ... Tested Google Sky browser. ...

... Fill out the Application form . Attention: In the very unlikely case that you do not receive our reply within three business days after your form was sent, please check your spam folder and contact us at mim@mccme.ru . ... Please note that if you are applying for a scholarship (including AMS-NSF scholarships) you have to fill out the application form on the corresponding website and to provide recommendation letters and other required documents independently of the application process here. ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

. School Application Form . Observatorio de Arecibo – Universidad de Puerto Rico – Departamento de Educaci n . SCHOOL NAME: . POSTAL ADDRESS: . PHYSICAL ADDRESS: . PHONE: . SCIENCE TEACHER: . EDUCATIONAL BACKGROUND: . TEACHING EXPERIENCE (years) . GRADEL LEVEL AND COURSES NORMALLY TAUGHT: . NAMES OF STUDENTS . SELECTED TO PARTICIPATE: . (Please indicate grade level) . 1. 2. 3. 4. 5. SCHOOL DIRECTOR NAME: . SIGNATURE: . * FAX 787-817-6117. DEADLINE MARCH 31, 2004 **

Optical characteristics of non-spherical scatterers . ... A list of reviews (under preparation) and links to the databases of Hovenier's and Gustafson's groups on the visible/infrared and microwave light scattering experiments, respectively. ... Light scattering codes . ... Benchmarks in optical properties . Tables of different light scattering characteristics carefully calculated by different codes (methods). Dependence of optical properties on scatterer parameters . ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

... 2001 May 1 . Antarctica Hears Little Normal Matter in the Big Bang . ... Sunday, independent collaborations behind three such instruments announced evidence that overtones heard are consistent with our universe having only about five percent normal matter and 95 percent dark matter or dark energy . This amount of normal matter was expected were our universe to have undergone a particularly explosive early phase of the big bang known as inflation . ... About APOD | ...

... OM grism data are obtained as image mode data. However the different nature of this type of data, spectra of the objects in the field of view instead of their "sky" image, makes that a special processing must be applied to the grism images. ... They are concatenated in a perl script, omgchain , which works in a similar way to the image and fast mode chains. ... All necessary corrections are applied to the grism data files. ... As we have pointed out OM grism data are image mode data. ...

;html xmlns= http://www.w3.org/1999/xhtml xml:lang= en head meta http-equiv= Content- Type content= text/html;charset=utf-8 / link rel= alternate type = application/rss+xml title= RSS for BibTeX Viewer data /default.bib href= /~kris/SimplyBibTeX/index.php?feed=rss2 amp;db= data /default.bib / link rel= alternate ...

extract equivalent widths ew(t) from 2d spectrum f(w,t) compute equivalent widths from normalized spectra smooth a function with a gaussian filter compute a gaussian filter for applying to a FFT calulate moments of a line profile compute periodogram dft(frq) from a light curve f(t). Use CLEAN if clean_mode = 1. fit a parabola fit(xv) to an arbitrary function yv(xv) evaluates a sine function on a given x-array

... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Starting Apache on Windows . Starting Apache on Unix . ... If the Port specified in the configuration file is the default of 80 (or any other port below 1024), then it is necessary to have root privileges in order to start Apache, so that it can bind to this privileged port. ... As an alternative to invoking the httpd binary directly, a shell script called apachectl is provided which can be used to control the daemon process with simple commands such as apachectl start and apachectl stop . ...

The 2016 Project ASTRO introductory workshop will take place September 16-17, 2016. ... Participating teachers and astronomers are required to attend. ... Home Phone: . ... work email . ... Please briefly describe your background and your experiences in astronomy (if different). Describe experiences you have working with schools or explaining astronomy to students and/or the public. ... What grade level(s) do you prefer to work with (check all that apply) . ... either work or home . ...