... Next, consider a more elaborate UBVRI photometer with two channels (a ``red'' and a ``blue'' tube). We suppose it has separate filter wheels in the two beams; the first filter wheel contains the UBV filters, and the second has the R and I filters. ... If the filter wheels had been in series instead of in separate beams, the unused wheel would have to be set to a clear position, instead of the ``any'' entered in the first five lines of Table . ...

INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

FOC Instrument Handbook Version 5.0 3 2.0 COSTAR OVERVIEW COSTAR replaces the High Speed Photometer in the Axial bay of HST, in the \GammaV2, +V3 quadrant (see Figure 7). ... Before COSTAR, the aberrated F/24 OTA beam at 6.565 arcminutes from the V1 axis formed an image at the FOC focal plane aperture 110mm from the V1 axis. ... Firstly, the focal plane tilt of the OTA at the FOC entrance apertures cannot be duplicated by the 2­mirror COSTAR system. ... FOC Instrument Handbook Version 5.0 5 Figure 2. ...

... Circles are used to depict the source positions. ... A optional ID label can also be displayed alongside the circle, corresponding to the row num- ber of that source in the input source list. ... These circles are in fact DS9-type regions, which can be written out to a le for future use (for example, when running a later DS9 session) by setting withregionfile to true, and specifying the desired le name via the regionfile parameter. ... This is a text le containing region descriptions for each source...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

Next: *.imh and *.qp Extensions Up: IRAF/PROS Files Previous: IRAF Image Arrays . The x-ray data are stored in QPOE files (Quick Position-Ordered Events, *.qp ) rather than image arrays. ... Note that, unlike IRAF images, QPOE files have no associated header file, and are always stored in the current directory, unless explicitly specified otherwise. Non-PROS IRAF tasks can also access QPOE data files in place of image arrays. ... rp110590.qp[pi=2:30] . ... The ROSAT PSPC qp file images are . ...

... It runs on unix, MacOS and possibly on Windows. ... On MacOS or Windows, double-click TUI. If MacOS complains that the application is unsigned then right-click TUI and select Open. ... If you have never run TUI before, set up your preferences before proceeding (for help on any item, right-click on the control and select Help from the menu that appears): . ... To save your window positions and remember which windows to open at startup, select Save Window Positions from the TUI menu. ...

Position Switching Separation Tolerance with Arecibo in L-Band Travis McIntyre The University of New Mexico July 2010 Revised December 2013 Abstract The blocked telescope aperture at Arecibo creates standing waves in the bandpass around 1MHz. ... Test observations with Arecibo in L-Band show that position switching effectively removes standing waves for separations of one half FWHM or less. Standing waves remain for separations of one FWHM, increasing the rms of the baseline by 20%. ...

Function: GDSPOS Purpose: GDSPOS prompts the user to define a position in a subset. Category: USER IO, PHYSICAL COORDINATES File: gdspos.c Author: K.G. Begeman Use: INTEGER GDSPOS( POS , Output double precision array MAXPOS , Input integer DEFAULT , Input integer KEYWORD , Input character*(*) MESSAGE , Input character*(*) SET , Input character*(*) SUBSET ) Input integer GDSPOS Returns the number of positions entered. POS Array which contains the positions entered by the user. ...

... To run the <LAYER> version of the example, select: flower.htm . ... However, if the page had several layers with absolute positions, and you wanted to place another layer in a relative position to one of the existing layers, you could use inline JavaScript to calculate the value for LEFT or TOP . ... In this example, there is really no need to use inline JavaScript to position the last flower layer, since you could just let the TOP value default to its natural value, as in the other flower layers. ...

Instructional Videos - ETX-60 & ETX-80 Backpack Observatory . ... The Backpack . WMV . ... About Meade | ... Meade Universe | ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved . ...

... Science . ... Science Users Information > Science Archive Facility > Request Handler FAQ . ... Data Handling and Products . ... ESO Data . ... Also, please double-check that you have entered correctly the full address of the service ( http://www.eso.org/requestHandler/pipacks ), including the leading triple w. Answer: The packages contain the raw data belonging to the selected run, the associated raw calibrations, the masters derived from them and the pipeline science products generated from them...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Tycho's instruments . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Astronomy Terms - To Help You Study The Universe . Articles | ... Learning about the universe, or the study of astronomy, can be fun for the individual or for the whole family. ... Learning a few simple terms will help you with this fascinating study. ... You will use a telescope or binoculars for your observation of the sky at night. ... Celestial Terms . ... Meteor or a shooting star – the light caused when a meteoroid burns up in Earth's . ... www.astronomy.net . About Astronomy Net | ...

If necessary, the observations and corresponding O – C values belonging to some observatory can be separated from the other data. Besides, O – C satisfying some conditions imposed on their value can be separated. ... To separate O – C by value, mark O – C check box and enter positive numbers limiting absolute values of O – C from above or from bottom or both and click on Run . ... The restrictions imposed on observatory code and on O – C values are indicated in status bar. ...

In this chapter we will consider two very simple but useful Web agents that I have written on Actor Prolog for my own needs. ... Let us start the Web agent. Fig. ... Start of the Web agent. The Context diagram consists of three blocks: "Logic Programming Sites", "Edit", and "Check". ... Some Web sites that are linked with the logic programming and Prolog are listed in the pulldown list (these addresses are transferred to the "Edit" block from the "Logic Programming Sites" block). ...

ENERGETIC PARTICLE EXPERIMENT DOK-2 . ... Due to much higher energy, angular and time resolution, better separation of electrons and ions it is expected that DOK-2 experiment will allow to re-examine in more details energetic particle population and related processes in magnetosphere regions covered by the spacecraft orbit. ... Thin foil in front of detector absorbes protons with energies E<400 keV so this detector measures electron spectrum in 20 - 420 keV range. ... Energy values, keV . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

. To enter several commands on the one command line, use a ; (semicolon) to seperate each one from the next. For example: cd ..; ls -l . This command line contains two commands. The first, cd .. changes the current directory to the parent directory. The second, ls -l produces a long listing of the contents of the curent directory. If necessary you can continue the commands onto another line.

The Arcetri Catalog contains measures and bibliographic data for all known H2O maser sources north of declination = -30 degrees (to be observable with the Medicina radiotelescope). ... This database is fully described in Cesaroni et al. ... A statistical analysis on the atlas has been carried (Palagi et al 1993). R. Cesaroni, F. Palagi, M. Felli, M. Catarzi, G. Comoretto, S. Di Franco, C. Giovanardi, F. Palla: A Catalogue of H2O maser sources north of delta=-30 , Astronomy and Astrophysics Suppl., ...