... 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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... Classes . Files . ... File List . ... images . ... 00001 //# ImageSourceFinder.h: find sources in image 00002 //# Copyright (C) 1996,1997,1998,1999,2000,2001,2002 00003 //# Associated Universities, Inc. ... First, strong point sources 00071 // are found via an efficient algorithm producing POINT components. ... 00117 ComponentList findSources ( LogIO & os, Int nMax, Double cutoff=0.1, 00118 Bool absFind= True , Bool doPoint= True , 00119 Int width=4); 00120 00121 // Find one source in sky plane. ...

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SINGULAR POINTS IN THE SOLAR CHROMOSPHERE . ... In the structure of the solar chromosphere, containing information on the configuration of the magnetic field, we have found and identified all the main types of the singular points ( see Fig. 1 ), which are known as inherent features of the 2-D vector field. ... The main types of the singular points are the node, the focus, the center, and the saddle. ... Singular point of the focus type in the solar chromosphere. ...

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... Append the name of the output grid file. ... CYLINDRICAL PROJECTIONS: -Jc lon0 / lat0 / scale (Cassini) -Jj lon0 / scale (Miller) -Jm scale ( Mercator - Greenwich and Equator as origin) -Jm lon0 / lat0 / scale ( Mercator - Give meridian and standard parallel) -Joa lon0 / lat0 / azimuth / scale (Oblique Mercator - point and azimuth) -Job lon0 / lat0 / lon1 / lat1 / scale (Oblique Mercator - two points) -Joc lon0 / Je lon0 / lat0 / scale (Equidistant). ...

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. Next: ROSAT and EINSTEIN Calibration Up: Point Response Functions Previous: Point Response Functions . Mathematical determinations of some PRFs can be found by typing: . xr> help prf . This in turn refers to several detailed help files for specific instruments. For an example of constructing an analytical model PRF for ROSAT . rsdc@cfa.harvard.edu . 1998-06-10

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... Abstract Find the nearest point on an ellipse to a specified point, both in three-dimensional space, and find the distance between the ellipse and the point. ... Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- point I Point whose distance to an ellipse is to be found. ellips I A CSPICE ellipse. pnear O Nearest point on ellipse to input point. dist O Distance of input point to ellipse. ... This routine finds that nearest point on the ellipse. ...

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... Purpose: ; Far message handler and finder. special for c startup include version.inc ?PLM= 1 ; pascal calling conventions .xlist include cmacros.inc include msdos.inc .list createSeg _TEXT, code, word, public, CODE, createSeg _ DATA , data , word, public, DATA , DGROUP createSeg FAR _HDR,fhdr, byte , public, FAR_MSG , FMGROUP createSeg FAR_MSG ,fmsg, byte , public, FAR_MSG , FMGROUP createSeg FAR _PAD,fpad, byte , common, ...

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... Ignacio Ugarte Urra's PhD thesis topic is the investigation of coronal bright points. In his first paper (in collaboration with Gerry Doyle and Maria Madjarska) he investigated the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipole during 3 days of almost continuous observations. ... In general the bright point has a radiance 4 times higher than that of the network. ...

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The AstroGuide . ... AstroGuide | ... Other Sites . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Founded in 1973, Willmann-Bell, Inc is one of the world's largest publishers and booksellers of Astronomical Literature. ... Web Site . ... Posted by jhuggins, October 12th, 2001 . ... They simply have books you are not likely to find anywhere else. I have bought several books and find most very handy and all useful for my astronomy pursuits. ... Web . ...

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. Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ISSP of Russ. Acad. Sci., Institute street 2, 142432 Chernogolovka, Moscow region, Russia. URL: http://www.issp.ac.ru/iao/apao/2009/ . e-mail: gavrilov@issp.ac.ru . fax: + 7-(496-52)-49-701 .

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... 295, 2003 H. E. Payne, R. I. Jedrzejewski, and R. N. Hook, eds. The MAST Pointings Tables Pro ject Karen Levay, Paolo Padovani1 , Randall Thompson, Megan Donahue, Michael Corbin Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 Abstract. We have undertaken a pro ject to create a database of all HST imaging observations organized by position on the sky. ... Each sky region was called a "pointing." ... Users select the instrument pointings table they wish to search. ...

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... 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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... 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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... Topic: Library vulnerabilities in Xlib, Xt, Xmu, and Xaw Announced: 25 May 1998 Last Updated: 26 May 1998 Affects: All XFree86 versions up to and including 3.3.2 Corrected: XFree86 3.3.2 patch 2 XFree86 only: no Patches: ftp://ftp.xfree86.org/pub/XFree86/3.3.2/fixes/3.3.2-patch2 ============================================================================= I. Background Xlib, Xt, Xmu, and Xaw are libraries included as a part of the core X Window System and are also included in every XFree86 release. ...

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The HyperNews Linux KHG Discussion Pages . Forum: How System Calls Work on Linux/i86 . Keywords: syscall assembly error . Date: Fri, 13 Sep 1996 01:44:29 GMT . From: Tim Bird < tbird@caldera.com > . This page contains the sentence "Actual code for system_call entry point can be found in /usr/src/linux/kernel/sys_call.S" . This should read: Actual code for the system_call entry point (for the intel architecture) can be found in /usr/src/linux/arch/i386/kernel/entry.S .

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... Tonight's Sky . ... The Magazine . News . 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 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... lagrangian points . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

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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 . ...

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... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... The task first computes a background image in order to identify pixels that may be part of a source. The task uses two different algorithms for detecting ``point'' and ``extended'' sources. ... If a likely source is found its position and shape parameters are computed by moments and the pixels assigned to the source are set equal to the source number. ... The source is again classified as either ``point'' or ``extended'' from a comparison of its with to that of the PSF width. ...

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Direct Electron Imaging Using Back Thinned CCD's . ... where, Vim is the maximum radial emission energy of photoelectrons from the cathode (eV), Vs is the cathode to anode voltage (V), k is the spatial frequency (2 p lp/mm), L is the cathode to anode spacing of the proximity focused diode (mm), d is the field-free region thickness(mm), h is the backscattering coefficient, (G/G 0 .) is the ratio of the average EBS gain of the secondary electrons to the primary gain, and W is the CCD pixel pitch (mm). ...

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