SAS home . ... List of SAS threads . This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, and to start a simple analysis tool. ... If the following files are available: a) RGS event list; b) RGS source list, just a single evselect command allows a user to create a light curve, corresponding to the extraction regions in the spatial and order images. set up your SAS environment (following the SAS start-up thread ) . ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

Next: *srcinten* - Calculate Source Up: Regions and Source Parameters Previous: *tprint* - Reading a . The following example reproduces that in *imcnts* - Find background subtracted counts for a point source , but using celestial coordinates sky (world) , and using different size source and background regions. input file: xdata$rp110590.qp . output file: rps90_cnt.tab . ... It is also possible to combine pixel and sky coordinates. ...

... solar system . ... Solar eclipse travelogue: Sulawesi delivers a spectacular eclipse . ... Observe the Solar System . ... Tour the Solar System . ... Do the paths of totality during solar eclipses follow a pattern that repeats after a certain period? ... RELATED TOPICS: SOLAR ECLIPSE . Total eclipses follow a period known as the saros, which is 18 years and 11 1/3 days long. ... Get instant access to subscriber content on Astronomy.com! ... Join Astronomy for America's 2017 total solar eclipse! ...

The IAO-type events have to stimulte the science-educating style of the Olympiads. To follow the main science-educating principles of the IAO-type events and Schools for Young Astrophysicists , particularly: . ... The minimum duration of the IAO-type event is defined as 5 days (4 nights). ... foreign language teams for an international IAO-type event - 1 / 2. ... The full text of the current Supplementary Instructions N 4 IAO-type events and Schools for Young Astrophysicists to be presented later. ...

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

Use procedure average to average point data. ... Warning(AVERAGE): no BackgndRate for OB=1, CH=11, scan= 1, Star: BSC1788 . ... Important : before beginning with the calibration, it is necessary to flag all incoherent scans since they are no longer needed. ... Begin calibration by displaying the plot widgets for averaged visibility data using Calibrate|Visibility|PLOT. ... Plot this selection of visibility amplitudes on baseline 1 of both spectrometers, for the four selected channels. ...

... This appendix describes how to use the JavaScript console to evaluate expressions and display error messages to the user. ... Displaying Error Messages with the Console JavaScript 1.2 and earlier versions. ... You can specify whether to automatically open the console when a JavaScript error occurs or to display a dialog box for each JavaScript error. ... To open a dialog box each time an error occurs, add the following line to prefs.js : user_pref("javascript.classic.error_alerts", true); . ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

OptInt PmWiki : Pm Wiki / Wiki Style Examples . Wiki styles | ... PmWiki uses WikiStyles for styling text with color and other attributes. PmWiki 2.0 introduced the ability to control the styling further and to even place styles on blocks. ... In addition, an author can define a style "shortcut" by using the define= property. For example, to define a style of %red% , one can use: . define=mystyle color=red% Here is some %mystyle% red text created using a style shortcut. ...

Next: Sky background definition Up: Background Definition Previous: Smoothing spline interpolation . The command BACKGROUND/SMOOTH enables to define the background without previous order definition. This feature is useful for example to correct for the background the image required for the order definition. ... All above methods are implemented in command BACKGROUND/ECHELLE and selected by the echelle keyword BKGMTD . ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Just A Little Background On Dick . Forum List | ... Post Message | ... Posted by Harvey on November 25, 2002 21:07:26 UTC . ... He knows a lot of math, probably more than anyone on this forum. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Family ASTRO Event Leaders can follow the links below to find a number of resources and more background reading to help them with their Astronomy Events and expand their knowledge on the topics covered in our series of Leader Kits for educators. ... Print and Web Resources on the Night Sky . ... If you have questions about Family ASTRO, see our Frequently Asked Questions for Educators and Astronomers page , or our Frequently Asked Questions for Families and Friends page. ...

First off, you need to start with three layers to your image. You should have your background on the bottom, (in this case, a tan based on the tints of this wood background), the image you wish to give the shadow to on the top, and a blank layer in the middle. ... The first thing we have to do is select the image we're giving the shadow to. ... This should select just the Hand. Save this selection as a 'new' channel, you'll need it later. ... Select black as your foreground color. ...

C#> gaussn.dc2 C CFunction: GAUSSN C CPurpose: GAUSSN computes the value of an N-component Gaussian C CFiles: gaussn.dc2,gaussn.shl C CAuthor: Peter Roelfsema C CCategory: UTILITY C CCall: C C GX=GAUSSN(X,PAR,NPAR) C C Input parameters: C X -R -running coordinate. C PAR -R -array defined as follows: PAR(0:NPAR*3) that C contains the parameters for the Gaussian in the following C order: C C PAR(0) -zerolevel C PAR(1) -PAR(3) -int, pos. of peak, fwhm cmp. ...

Your Phase II Proposal and Using RPS2 . ... Exposure_Number: 1 Target_Name: HD12345 Config: HRS Opmode: ACQ Aperture: 2.0 Sp_Element: MIRROR-N1 Wavelength: Optional_Parameters: BRIGHT=RETURN, ! ... Number_of_Iterations: 1 Time_Per_Exposure: 13.5S Special_Requirements: ONBOARD ACQ FOR 2 Comments: STEP-TIME = 1.5 sec Exposure_Number: 2 Target_Name: HD12345 Config: HRS Opmode: ACQ/PEAKUP Aperture: 0.25 Sp_Element: MIRROR-N1 Wavelength: Optional_Parameters: SEARCH-SIZE=5 ! ...

... Predicted "landing point" coordinates . ... The prediction based on the state vector of epoch 06/09/2000 give the results as follows: . ... 14.25 deg. ... W - geographical coordinates of the "landing point" . The estimated accuracy of this prediction looks as follows: the RMS error of the time is 2 min, the RMS errors of the latitude and longitude are .5 deg. and 1. deg. ... The more precise prediction will be done later. Modified 19 September, 2000 . ... IKI RAN | ... INTERBALL mission ...

... V.G. Kurt, V.V. Sokolov, S.V. Zharikov, G.G. Pavlov, B.V. Komberg: "BVRI observations of PSR0656+14 with the 6-meter telescope" (astro-ph/9706076), 1998, A&A, 333, 547 . ... A. Shibanov, A. B. Koptsevich, V.V. Sokolov, S.V. Zharikov, G.G. Pavlov, V.G. Kurt, V.N. Komarova: "Optical photometry of the PSR B0656+14 and its neigbourhood", 2000, Abstracts of JENAM-2001, 99 . ... A. Shibanov, V.V. Sokolov, V.G. Kurt: "Optical photometry of PSR B0656+14 and its neigbourhood", 2001, A&A, 370 , 1004 . ...

... This paper describes the main algorithms used by the Einstein Level One processing to create the exposure masks and the background maps for Einstein IPC images, and how these algorithms were recreated in the IRAF environment. Our goal was to recreate the algorithms used by the Level One Processing to create exposure masks and background maps for Einstein Image Proportional Counter (IPC) data (cf. sections 2.5 and 2.7 of Harnden et al. ...

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