SiD Tracking using VXD Nick Sinev, University of Oregon Plan Motivation Track reconstruction algorithm Performance for single tracks Does it have any limits ? With backgrounds To do Motivation Tracking in SiD is a challenge, especially pattern recognition. ... Limitations caused by reconstruction speed consideration In the presence of high number of background hits, number of 3-point combinations used as track seed became enormous if we consider all combinations. ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

... The MROI makes use of optical interferometry, much like COAST . ... As a major collaborator, the Cambridge Astrophysics Group is currently developing some of the mechanisms below, specifically the delay line and the fast tip-tilt system. ... Fringe tracking is used to control the positions of the delay line trolleys to make sure the light beams from the different telescopes in the MROI arrive at the science camera beam combiners in phase so that an interference pattern can be produced. ...

Russell Owen , Charles Hull and Walter Siegmund The Apache Point Observatory 3.5m telescope, located in the Sacramento Mountains of New Mexico at an elevation of 2.8 km, is awaiting the installation of the primary mirror. ... Important features of the design include a fast (f/1.75) lightweight honeycomb mirror, a compact altitude/azimuth mount, friction-coupled drives and position encoders, and use of a telescope model to compensate for mechanical errors (1) . ... Table 1: The current telescope model. ...

... HST . Moving COS FUV Spectra to the Third COS FUV Lifetime Position . ... HST Overview . Overview . ... Sometime near the start of Cycle 22, the location of COS FUV spectra on the detector is expected to be moved from the second COS FUV Lifetime Position (LP2) to the third COS FUV Lifetime Position (LP3). ... With the LP3 move, spectra will be shifted below the original LP1 position by about -2.5", which maximizes resolution and the detector area available for future lifetime positions. ...

On,off position switching is done to remove standing waves from the resulting spectra. ... 1,5,10,20,25,50,100 samples corresponding to great circle angular offsets of .004,.02,.04,.07,.09,.18, and .35 degrees. ... Page 1: rms vs great circle offset. ... Page 2: rms vs little circle offset. ... The rms increase correlates better with great rather than little circle offsets. the 1 usec standing wave starts to be seen in the .07 degree offsets. a .9 usec standing wave is seen at .35 degrees offset. ...

... Pre-university education . ... For the year Samara State Aerospace University moved up in the ranking of Vladimir Potanin Foundation from the 44th to the 10th place and added three positions in the ranking of universities reputation Expert RA in the field of Engineering, natural and exact sciences . Samara State Aerospace University has significantly improved its position in the ranking of universities of Vladimir Potanin Charitable Foundation at the end of academic year 2014-2015. ...

MSSSO Annual Report 1997 . ... The Duffield Heliostat was designed and constructed for the Stromlo Exploratory, and forms the central feature within the building. It produces a stationary, high-quality image of the sun, which is one of the major exhibits in the Exploratory, and was installed in time for the opening ceremony on July 26, 1997(Fig. ... The tracker module of the Heliostat is located at the top of the pier in the central area of the building, under a roll-off roof. ...

European Southern Observatory La Silla Paranal Observatory HARPS Secondary Guiding 1 Poster 7739-171 2 Gerardo Ihle1, Ismo Kastinen1, Gaspare Lo Curto1, Alex Segovia1, Peter Sinclaire1, Raffaele Tomelleri gihle@eso.org, 1glocurto@eso.org, 2r.tomelleri@tomelleri.com Introduction HARPS, the High Accuracy Radial velocity Planet Searcher at the ESO La Silla 3.6m telescope, is dedicated to the discovery of exosolar planets and high resolution spectroscopy. ... Fig. 5a Details Fig. 5 Tip Tilt table. ...

Next: The ESO VLT CCD Detectors Software . ... Up: Instrument-Specific Software . ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pipeline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ... Quality Control Pipeline provides quality assessment for instrument performance data and observing conditions, and tests the results of the Reduction Pipeline. ...

BTA control information and schematic view of telescope position . ... Control: Tracking . ... Target: Object . ... 092 o 45'02.4" . ... Object: . ... Difference: . 000 o 00'00.0" . 00 o 00'00.0" . ... Position: . ... Focus position: 035.00mm . ... Outdoor temperature: -01.6 . ... Indome temperature: -00.5 . ... Main mirror temperature: -02.5 . Temperature difference: 0.9 ...

... Meta Index / Home Page The eposcorr task reads the X-ray source positions from an input fits-file and correlates those with the positions from an optical source catalogue. The correlation algorithm checks whether there are offsets in RA and DEC which optimize the correlation. ... If demanded a similar grid search is done for roll angle errors. ... The optimum offsets are then used to correct the input source positions which will be added as seperate columns to input X-ray source catalogue. ...

This section contains information of how user agents should treat control characters and other special characters. ... There are 256 character positions in the Latin-1 encoding. ... It consists of the space character, 186 characters that form a subset of the graphic characters in ISO 6937/2 (1983), and four additional characters that are intended for inclusion in ISO 6937/2. ... Certain characters are taken to have special meaning within the context of an HTML document. ...

To see the manner in which position of planets and their coordinates vary with time click on icons with arrows Right or Left in menu bar. ... The current moment of time and object coordinates are therewith displayed. ... Clicking on icons with symbols of sun or crescent leads to appearance of images of the Sun or the Moon in that point of the sky which correspond to their coordinates in current moment unless it lies within not displayed region; see below). ...

... First of all, I should say that you cannot guarantee user-mode processes to have exact control of timing because of the multi-tasking nature of Linux. ... However, for most applications using I/O ports, this does not really matter. To minimise this, you may want to nice your process to a high-priority value (see the nice(2) manual page) or use real-time scheduling (see below). ... Linux 2.x kernels have soft real time support; see the manual page for sched_setscheduler(2) for details. ...

... B=Command, 12AB=Azm, comma, 4000=Alt. ... Example: if the desired position is 220°, then POSITION_24BIT = (220/360)*224 = 10,252,743 Separate POSITION_24BIT into three bytes such that (POSITION_24BIT = PosHigh*65536 + PosMed*256 + PosLow). Exampe: PosHigh = 156, PosMed = 113, PosLow = 199 Send the following 8 bytes: a. Azm Slow Goto: 80, 4, 16, 23, PosHigh, PosMed, PosLow, 0 b. Alt Slow Goto: 80, 4, 17, 23, PosHigh, PosMed, PosLow, 0 The number 35 is returned from the handcontrol 4. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Magnetic (red squares) and non-magnetic (black points) Herbig Ae/Be stars plotted in a Hertzsprung-Russell diagram. ... Using the projected rotational velocities measured at the surface of the stars, we have calculated the angular momentum of the sample and plotted it as a function of age. We have then compared the angular momentum and the v sin i distributions of the magnetic to the non-magnetic HAeBe stars. ...

Instruments and Methods 125 Long time tracking of the Sun with RATAN-600 in Radio Schmidt mode V.B. Khaikin, E.K. Ma jorova, I.G. E mov, O.A. Victorov, V.M. Bogod, and S.Kh. ... Cosmic source tracking with unmovable main mirror in a form of cylinder requires a special secondary mirror of double curvature 12 m size or a phased array in the focal plane of an ordinary secondary mirror Ka jdanovskij, 1980. ... Fig. 4 shows the Sun tracking with new drive in speed control mode starting from meridian. ...

Contents] [Prev page] [Next page] [Index] . Navigator 4 from Netscape, which is part of the Communicator product suite, includes three new areas of functionality that taken together give you Dynamic HTML. The three components of Dynamic HTML are style sheets, content positioning, and downloadable fonts. Used together, these three components give you greater control over the appearance, layout, and behavior of your web pages. ... Introducing Downloadable Fonts . ...

Next: VLT First Light Up: Front Cover Previous: Participants . VLT First Light . ... Image Quality of the VLT . ... Near IR Astronomy with the ESO VLT . Introduction and Overview . Infrared instruments for the VLT . Instrument Summary . ... Performance . ... CONICA: The high resolution near-infrared camera for the ESO VLT . Introduction . Design of Imaging Optics . Analyzing Optics . Cryo-mechanical Design . ...