... Can do almost everything that Miriad, AIPS and Difmap can plus more. ... Component Fluxes cont. ... Model fit to VSOP and ground- only VLBI data in Difmap ) Tasks, commands Miriad task Visibility plane model fitting Image plane model fitting Image plane integrated flux Uvfit, uvmodel Difmap command Modelfit AIPS task Uvfit, (slime) Aips ++ function image .fitsky, imagefitter (spatial), image .maxfit, image .fitprofile, imageprofiler image .statistics image .getchunk, ...

... 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. ...

Sloan Digital Sky Survey Telescope Technical Note 19970527 Walter Siegmund . ... Pointing Error Budget . ... The interleaved strips and adjacent stripes overlap about 1 arc minute. ... However, a 2-D pointing accuracy of 3 arc seconds RMS leads to acceptibly uniform overlap and minimises the number of cases that require special handling (Table 3). ... A guide fiber bundle diameter of 16.5 arc seconds and a pointing accuracy of 3 arc sec RMS results in 99% initial success in acquiring guide stars. ...

Next: Generation from Ground Calibration Up: BORESIGHT Previous: BORESIGHT Contents . This CCF component is used by QLA and the SAS. A copy of this CCF component is also used by the PHS tools. ... It is used in mission planning to predict the position of Field Acquisition Stars and targets. ... The reference point for the boresight in the OM detector is defined as the lower left edge of pixel (1025,1025) in the V-filter. Here it is assumed that the pixels are numbered starting with 1.) ...

Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

... TEXAS SURVEY: THE PRELIMINARY -35 and stronger than 0.25 Jy is intended to provide accurate (one arc-second rms error) positions, flux densities and structure models for each of the ~70000 sources expected to be listed. ... Average rms position accuracy for point sources is 1" in RA and 0.5" in DEC. ... 1 is the source name in IAU format. ... Thus, (+1,+1) means the second most likely lobe is 51.8" LATER in RA, and 51.8"*sec(z) HIGHER in DEC than the position listed. ...

... To plot the data (and model, here xitau.model), I have read the model, computed the model values for the ASTROMETRY, and used Plot|ASTROMETRY to produce the ASTROMETRY plot widget. ... First, plot the data and with Util|Ellipse and the mouse buttons interactively define an apparent ellipse to fit your data as best as you can. ... Under Util|Orbit, there is a Thiele-Innes procedure to estimate the orbital elements using your apparent ellipse and Kepler's laws! ... Back to tour page . ...

OptInt PmWiki : MROI Fast Tip Tilt / Tech Meet 9 . Nasmyth Optical Table . ... XS analysis: Attach:FTT_mount_analysis_05.pdf . DFB analysis: see below . ... How to locate and support optics . ... Assume that the table is supported by a vertical support (representing the side of the telescope) and a diagonal support running from the telescope to the end of the table furthest from the table. ... Printable View of http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/pmwiki.php/MROIFastTipTilt/TechMeet9) ...

... POLAM-P . ... HOME . ... ABOUT LOMO . PRODUCTS . MICROSCOPES . ... SURGICAL MICROSCOPES . ... Home Products Microscopes POLAM-P Three Position Interference Slider . ... Three Position Interference Slider with filters of wavelengths 480 nm, 590 nm, and 625 nm. ... LOMO America, Inc. ... 847) 215-8800, Fax: (847) 215-9073 . ... 2000-2016 LOMO America,Inc. ...

... Some of the functions that go into designing a tower have been left for SNEAKERS to handle. ... A connector can only be placed on top of a support. ... The supports are placed on top of each other at various angles. ... The system determines the ideal angle from the end of the last support to the designed top of that leg of the tower. ... The maximum angle allowed is , so that the tower will continue to be designed toward the goal at the top. Connectors are always placed on top of supports. ...

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 . ...

CORRELATOR POLARIMETRY Jim Cordes 1995 November 27 This writeup is intended to clarify the relationship between polarimetry done with a correlator and continuum polarimetery done with a single-channel system. First I derive the correlation functions for a monochromatic signal and then a continuum signal. ... Monochromatic, Linearly Polarized Signals Consider a monochromatic, linearly polarized signal at RF: ~ E t= c cos!t^ + s cos!t^ x y: 1 where c = cos and s = sin and is the position angle. ...

Peremennye Zvezdy", . ... Star Name: . GSC 3710-00312, USNO-A2.0 1425-04252279 . ... Variability type: . ... USNO-A2.0 1425-04252279 is located at the distance of 15?.7 from the X-ray source 1RXS J031707.9+572942, which is larger than the position error of the source (12?), but its hardness ratio HR1 = 0.03 0.29, typical of chromospherically active stars, and its character of variability allow us to assume that the star is related to the X-ray source. ... Eclipsing variability . Sine wave 1 . ...

... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

... 5-GHz total flux density . ... 2.639 * = the position has been determined to an accuracy of 10 mas from the VLBApls data . VLBApls image at 5 GHz . ... contour gif | contour PostScript . Correlated flux density (Jy) vs. projected baseline length plot . ... PostScript . Gaussian source model component parameters . flux density (Jy) . EW position (mas) . ... major axis (mas) . minor axis (mas) . position angle ( ) . ... S component contour PostScript . ...

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. ...

... ABOUT ST-ECF . ... Richard Hook and Andy Fruchter . ... Test versions of enhanced drizzle implementations - undocumented and unsupported . ... Transform an X,Y position from output to input pixel position using the same conventions as drizzle . ... Transform an X,Y position from input to output pixel position using the same conventions as drizzle . ... Convert WCS header information into drizzle parameters . Maintained by Richard Hook <rhook@eso.org> . ...

Classroom Activity: Making a Rainbow . ... When white light from the Sun or a light bulb passes through a prism, the light splits into its component wavelengths. ... Red, blue, green colored filters - if possible, cut 1x4-inch pieces of the filters for each student . ... Many students have the misconception that filters somehow dye the light a certain color. ... Younger students can draw the rainbow and make up a mnemonic for remembering the order of the colors (such as, ROY G. BIV). ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

RSAA Home . GSAOI Home . ... Other Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Rockwell Science Center home page . ... Santa Barbara Research Center home page . ... CCD-World home page . ... SDSU home page . ... EPICS home page . ... Optics Society of America . SPIE - Society for Optical Engineering . ... ZEMAX software (Focus Software page) . OPTICAD software (Focus Software page) . ... RedHat home page . ...