... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

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... It is possible to change the meaning of keywords (to `overload' them), but it can be confusing, primarily because your new commands may not behave the same way that this manual claims. ... If you said box in your macro, then overloaded the keyword, you'd have a macro that called itself. ... Another example is that (when overloaded) lines saves the line numbers used, so that you can write a macro to print the top 10 lines of a file (it's called head ). ...

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• casacore: casa::MSMainEnums Class Reference
• casacore: casa::LELCoordinates Class Reference
• LOGGING

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

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• Extraction of a X-ray light curve for an EPIC point-like source (GUI version)
• How to extract MOS spectra of a point-like source and associated matrices
• How to extract PN spectra of a point-like source and associated matrices

... Stellar Evolution . Nucleosynthesis in Stars . The Evolution of Star Clusters . JAVA Physics Lab . Alternative Energies Class . Steve Kevan's Physics 251 Class . ... Talk on Solid State Physics of CCD detectors . Talk on Cosmological Issues . ... Digital Spectra of Stars . NETexperts E-mail List . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu ...

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... There are number of features that can be set by the user in the Sparkle Dialog box. ... The Sparkle plug-in computes the luminosity (level of whiteness) of each pixel in the image (the user can see this when the progress window labeled Generating luminosity array... is displayed). ... The threshold value is currently a slider/text field pair which have a precision of .0001. ... Like the Threshold value, the Flare Intensity has both a slider and a text input field for specifying its value. ...

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• CoolType - Chrome
• CoolType - Fading
• Hands On; The Button Mask

... Doug's Home Page . ... In the examples below we show a number of ways that data can be moved back and forth between S-Lang and Perl . ... Source code typeof : "undef"; __END__ __SLang__ variable foo = Any_Type [3]; foo[0] = "a string"; foo[1] = 23; define getfoo(x) { return foo[x]; } message( "In S-Lang:" ); vmessage( "typeof(foo[0]) = %s", string(typeof(foo[0])) ); vmessage( "typeof(foo[1]) = %s", string(typeof(foo[1])) ); vmessage( "typeof(foo[2]) = %s", string(typeof(foo[2])) ); . ...

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• Select a circle around the central point source
• The AstroStat Slog Blog Archive [MADS] Kriging
• Chandra Images for G004.5+06.8

... The mouse pointer is represented on the screen by a small bitmap called the cursor . ... GdkWindow* gdk_window_get_pointer (GdkWindow* window , gint* x , gint* y , GdkModifierMask* state ); . ... It is possible to grab the pointer, which means that all pointer events will go to the grab window for the duration of the grab. ... gint gdk_pointer_grab (GdkWindow* window , gint owner_events , GdkWindow* confine_to , GdkCursor* cursor , guint32 time ); . void gdk_pointer_ungrab (guint32 time ); . ...

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• Cosmic Microwave Background Anisotropy
• Example
• Plotting and overplotting axes

Next: Implementation Up: Image Restorations of High Previous: Technique . This method has been tested on many kinds of data both real and simulated. Here we present three examples in which the structure of the background is of increasing interest and photometry of point sources of diminishing importance. ... Fig. 1 shows the results of this and Fig. 2 shows the photometric accuracy and also a histogram of the background image. ... Fig. 4 shows the quality of the resulting photometry. ...

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• Image Restorations of High Photometric Quality. II. Examples
• Dust Around Stars
• Technique

... Get used to using the mouse and its buttons for such tasks. Figure out the function of each of the three mouse buttons. ... Fire up textedit application and practice editing text files. ... Figure out basic options like cut and paste of text around the file, saving and loading files, searching for strings in the text and replacing strings. ... Familiarise yourself with other UNIX functions by creating various files of text etc. and trying out the various functions listed in handouts. ...

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• Low Level Operators and Bit Fields
• Using Ceilidh as a Student
• The course and unit level

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Mad Science

Algebraic geometry studies geometric loci defined by polynomial equations, for example the complex plane curve f(x,y)=0. ... Some experience in geometry and topology (projective spaces, metric and topological spaces, simplicial complexes and homology groups) is desirable but not essential. Projective spaces. ... Plane projective algebraic curves: point multiplicities, intersection numbers, Bezout's theorem. Plane projective algebraic curves: singularities, duality, Pluecker formulas. ...

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• Geomtery of the spaces of mappings
• Elementary courses
• Complex Analysis

... 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 . ...

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• ADASS 2003 Conference Proceedings
• The SAX-LEGSPC Data Reduction and Analysis System: An Example of a Minimalist
• What Happened to the Results?

... fftfilter - compute complex fft on input (ao). fftfilter [ -r ] [ -d transformDirection ] [ -n lengthTransform ] [ -z zeroFillFromdatapoints. ] . fftfilter performs a complex fourier transform on its input data. The input is taken from the standard input and should be real*4 floating point format. ... Any data at the end that does not fill up a complete transform length will be ignored (unless -z is used then the last points will be zerofilled). ... Direction of the transform. ...

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• Common Holidays in Relation to Equinoxes, Solstices Cross-Quarter Days
• fitting 2d gaussians to crosses
• Manpage of RADARDECODE

An astronaut in low Earth orbit moves in (approximately) a big circle extending around the Earth. ... That can be interpreted as stating that in the astronaut's frame of reference, all bodies are subject to two forces, gravity and the centrifugal force, and the two are in perfect balance, adding up to zero. ... Wheel-shaped space . ... The science-fiction film "2001: A Space Odyssey" featured spinning space station, whose rotation provided the crew with "artificial gravity." ...

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• Lagrangian Points
• The Polar Caps
• Seasons of the Year

High Noon Analemma Over Azerbaijan . ... Credit Copyright: Tun Tezel ( TWAN ) Explanation: Is the Sun always straight up at noontime? ... For example, the Sun never appears directly overhead from locations well north or south of the Earth's equator. Conversely, there is always a place on Earth where the Sun will appear at zenith at noon -- for example on the equator during an equinox . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...

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• XWare > APOD

Next: Average Up: Quick Guide Previous: Reduce the background data Contents . ... Load all data if you have sufficient memory (this may take a few moments). ... Use R EDUCE P OINT D ATA I MAGING PLOT to plot and edit the point data data in much the same way as you did with the background data. ... Use plots vs channel if you have to flag several entire channels. Use the PLOT A UTO option to automatically edit outliers in PhotonRate and VisSq (select all channels for speed). ...

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• IRAF/STECF 2-D spectrum point source / background decomposition package
• Reduce the background data
• Inconsistent (or Inconsistently Applied) Identification Criteria

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

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• How Distant is the Moon?--lesson plan #14
• Kepler's First Law--Lesson Plan #20
• Trigonometry--what it is good for?

As an obligatory preparing for the application to participate in the IAO a short report of National Olympiad of the current year with a set of all problems used on the Olympiad has to be presented by the applicating team. ... The final minutes (protocols written in Latin or Cyrillic in form of tables) of the Olympiad (evaluating of solutions of the students participated in the last stage of the Olympiad) should be included as well. ... Historical data of the National Astronomy Olympiad: . ...

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• The XVIII International Astronomy Olympiad, information before Olympiad
• XVII International Astronomy Olympiad, information before Olympiad
• XIX International Astronomy Olympiad, information before Olympiad

This layer is defined with a <LAYER> tag. You see that the background image is applied to the rectangular region occupied by the layer. The height of the filled-in area is determined by the height value. ... The style definition sets the background-image property. The height of the filled-in area is determined by the actual content. ... The style definition also includes a value for border-width and border color. ... The style definition includes a value for layer-background-image. ...

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• User interface
• Specifications
• The new precision concept

... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Modules . ... To enable mod_dav , add the following to a container in your httpd.conf file: Dav On . ... In addition, a location for the DAV lock database must be specified in the global section of your httpd.conf file using the DavLockDB directive: DavLockDB /usr/local/apache2/var/DavLock . ... Use the Dav directive to enable the WebDAV HTTP methods for the given container: <Location /foo> Dav On </Location> . ...

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• mod_example - Apache HTTP Server
• Translating Addresses in Kernel Space
• Labir Locally Mantained Hotlist