... Abstract Convert from rectangular coordinates to geodetic coordinates. ... Brief_I/O VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- rectan I Rectangular coordinates of a point. re I Equatorial radius of the reference spheroid. f I Flattening coefficient. lon O Geodetic longitude of the point (radians). lat O Geodetic latitude of the point (radians). alt O Altitude of the point above reference spheroid. ... CSPICE Version 1.0.0, 08-FEB-1998 (EDW) . ...

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• CSPICE Routines: GEOREC_C
• CSPICE Routines: DRDGEO_C
• CSPICE Routines: PGRREC_C

... 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. ...

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... The system is based on two straight lines ("axes"), perpendicular to each other, each of them marked with the distances from the point where they meet ("origin")--distances to the right of the origin and above it, the origin being taken as positive and on the other sides as negative (see drawing below). ... One system (" polar coordinates ") uses the length r of the line OP from the origin to P (i. e. the distance of P distance to the origin) and the angle that line makes with the x-axis. ...

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• INTERBALL IB_TAIL landing point coordinates
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• The simulative geophysical regions cross-sections coordinates

... Here, $\lambda = {-180^{\circ}} \ldots {+180^{\circ}}$ is the longitude and $\varphi = {-90^{\circ}} \ldots {+90^{\circ}}$ the latitude in the original coordinate system. ... begin{equation*} \tan(l_{0} - l) = \frac{\cos(\delta) \sin(\alpha - \alpha_{0})}{\sin(\delta) \cos(\delta_{0}) - \cos(\delta) \sin(\delta_{0}) \cos(\alpha - \alpha_{0})} \end{equation*} . ... begin{equation*} \sin(b) = \sin(\delta) \sin(\delta_{0}) + \cos(\delta) \cos(\delta_{0}) \cos(\alpha - \alpha_{0}) \end{equation*} . ...

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• World Coordinate Systems (WCS) in FITS
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... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

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• The SETI Institute is after alien signals. Assuming another world is beaming a
• Think positive | Astronomy.com
• Astronomers crowdfund effort to recreate "alien" signal | Astronomy.com

... Step 1: The Footprint position calculation by the magnetic field line tracing from the satellite position up to the Ionosphere by using IGRF + Tsyganenko [1987] magnetic field model (the stop trace altitude 110 km). Step 2: Tracing back from the Footprint (produced on the Step 1) to the dipole equatorial plane (by using only IGRF magnetic field model up to the geocentric distance 8 RE and dipole field model after this distance). ... Back to the description . ...

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• Coordinate systems [Oulu]
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. The Global Positioning Satellite system has a mode, "L3" at 1381 MHz, which is used for global alarm. If it is within your observing band, then all astronomical signal gets swamped. With advanced notice, the observatory is in a position to alert the responsible authorities and request rescheduling GPS L3 transmission . SMARG-Home . Page Updated by: William Genter 03/23/2005 12:24:39

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• byu phased array feed.
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... Contents . ... Sidereal time . ... Ephemeris of the Sun . ... Rectangular equatorial coordinates of the Sun (J2000.0) . ... Aberration, parallax, mean longitude of the Sun, obliquity of the ecliptic, nutation in obliquity . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris of Venus . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Conversion of mean time to sidereal time (with accuracy 0.01 s )...

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• AY2016 (contents)
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... Posts tagged ?signal processing? ... Posted by hlee . ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Fitting , Imaging , Methods , Quotes , Spectral , Stat , Uncertainty | ... ArXiv] 2nd week, Mar. ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray ....

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• The AstroStat Slog Blog Archive Signal Processing and Bootstrap
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• The AstroStat Slog signal processing magazine

... The operators will be explained as they are used. The general notion to keep in mind is that any combination of these operators results in a 2- D affine coordinate transformation in the TF plane, which may be represented using the homogeneous coordinates often used in computer graphicsfoley. ... S _t_c,f_c = g_t_c,f_c,(_t) | ... We denote a time shift to the position , with an operator that has a multiplicative law of composition : (Table 1). ... Note that these two operators do not commute. ...

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• Warbling Chirplet: Analysis of Signals of Oscillating Frequency
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• INTRODUCTION

Stellarium 0.12.3 . ... Classes . ... AngleSpinBox Class Reference . A spin box for displaying/entering angular values. More... #include < AngleSpinBox.hpp > . ... virtual voidљ . ... Set the value to default 0 angle. ... AngleSpinBox (QWidget *parent=0, DisplayFormat format= DMSSymbols , PrefixType prefix= Normal ) . ... Set the display format. ... the value to set, in decimal degrees. void AngleSpinBox::setDisplayFormat . ... the value to set, in radians. void AngleSpinBox::valueChanged . ...

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• Stellarium: MapLabel Class Reference

... Sun's ecliptical positions. Explanations. Each row contains at 0h of Time Dynamical Terrestrial: month, day , day of the week, julian day number at beginning of day (only last three digits is given, add head of column to form correct number ), longitude in system of mean equinox of date (degrees, minutes, seconds ), two latitudes (the first for mean equinox of date and the second for mean epoch of year; seconds ), radius-vector (astron. units), precession in ...

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• Explanation of table of equatorial coordinates of the Sun.
• General Astrometry
• Lunar eclipce explanation page of Computer Ephemeris (DE200/LE200).

Converts from 3D space to a simpler 2D space – orders by magnetic field line (assumes dipole geometry). McIlwain's shell parameter (L) is a measure of “equatorial radius.” ? labels a field line, even in a non-dipole field. Magnetic Field Intensity (B) – measure of “latitude.” L – Undefined for open field lines. B (static field model) doesn’t sufficiently order the XMM data due to dynamic environment . ... Previous slide . Next slide . Back to first slide . ...

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• Spatial coordinate systems
• Conversion to DET coordinates
• Source X and Y coordinates

Sloan Digital Sky Survey Telescope Technical Note 19971102 . ... Because of the difficulty of visually detecting thin patches of clouds under dark conditions, an infrared (IR) scanner was constructed in 1993 to monitor nighttime cloud cover at Apache Point Observatory. ... The left diagram (Figure 1) shows the scanner coordinate system. ... The loci of points at 15њ intervals in scanner coordinates are plotted on an azimuth-altitude polar plot (Figure 3). ...

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• lsst.coordConv: coordConv::Site Class Reference
• TUI:Telescope:Coordinate Systems
• TUI:Telescope:Slew Window:Options:Axis Wrap

pswiggle - Plot anomaly along track on a map pswiggle xyz _ files -J parameters -R west / east / south / north [ r ] -Z scale [ -A direction ] [ -B tickinfo ] [ -C center ] [ -D gap ] [ -E azimuth / elevation ] [ -G fillrgb ] [ -H [ nrec ] ] [ -I fix _ az ] [ -K ] [ -M [ flag ] ] [ -N ] [ -O ] [ -P ] [ -S [ x ] lon0 / lat0 / length [ units ] ] [ -T ... Je lon0 / lat0 / scale (Equidistant). ... I Set a fixed azimuth projection for wiggles [Default uses track azimuth, but see -A ]. ...

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• http://xray.sai.msu.ru/~ivan/gmt/man/project.html
• http://xray.sai.msu.ru/~ivan/gmt/man/mapproject.html
• http://xray.sai.msu.ru/~polar/xmgr/view.html

Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...

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... SELECT coordinates, (coordinates <-> '5.0,5.0'::point) AS dist FROM spots ORDER BY dist ASC LIMIT 10; coordinates | ... CREATE INDEX spots_idx ON spots USING gist (coordinates,to_tsvector('french',address)); =# SELECT id, address, (coordinates <->'(2.29470491409302,48.858263472125)'::point) AS dist FROM spots WHERE to_tsvector('french',address) @@ to_tsquery('french','mars') ORDER BY coordinates <-> '(2.29470491409302,48.858263472125)'::point LIMIT 10; 8.4.2 166.089 ms 5dev+knngist-0.6 2.758 ms . ...

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• APOD: 2004 March 7 - An Anomalous SETI Signal

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . ... Travel to E-ELT Armazones . ... ESO . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... New Technology Telescope . ... European Week of Astronomy and Space Science 2009 . ... But the Fine Ring Nebula тАФ captured here by the ESO Faint Object Spectrograph and Camera mounted on the New Technology Telescope at the La Silla Observatory in Chile тАФ looks like an almost perfect circular ring. ...

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• POLIMODEL (V2.00) --- November00 --- POLIMODEL (V2.00)
• Smoke Signals in Space | ESO Ireland
• Smoke Signals in Space | ESO Australia

... The initial descriptions of the FITS format provided a simplified method for describing the physical coordinate values of the image pixels, but deliberately did not specify any of the detailed conventions required to convey the complexities of actual image projections. ... They were CRPIX n for the reference pixel location on pixel axis n , CRVAL n for the coordinate value at that pixel, CDELT n for the increment at that pixel in the coordinate value, and CTYPE n for the type of coordinate. ...

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• Data Acquisition by Switching
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• ADASS 2002 Conference Proceedings

The aim of this section of the course is to familiarise you with celestial Coordinates. ... I found some good notes explaining the celestial coordinate system on the web: . ... 1st Dec: 04hr, 00min In addition to the equatorial coordinates described in the notes above, astronomers also use (at least) two other coordinate systes: galactic coordinates and ecliptic coordinates. ... Ecliptic coordinates use the ecliptic (the Earth's path around the sun) as the equator, and are used for solar system work. ...

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