XMM-Newton Science Analysis System . ... include changes in version 3.6.5 etc . Module name: coordinate . ... This module contains subroutines to perform a variety of coordinate transformations. Where possible the cal coordinate-transformation routines are used. The present subroutines have been designed to act as wrappers-of-convenience for one or more of the cal routines rather than to supplant them. ... XMM-Newton SOC/SSC -- 2007-07-08 ...

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• Attitude variation
• Node-specific Exposure Maps

UNIVERSAL COORDINATES TRANSFORMER . EPOCH1: . EQUATORIAL COORDINATES FOR EPOCH1 . ... rad . ... EPOCH2: . EQUATORIAL COORDINATES FOR EPOCH2: . ... ECLIPTIC COORDINATES FOR EPOCH1 . ... ECLIPTIC COORDINATES FOR EPOCH2 . ... GALACTIC COORDINATES . ... Type initial epoch (epoch1), final epoch (epoch2) and needed coodinates (equatorial a 1 , d 1 for epoch1, ecliptic l 1 , b 1 for epoch1 or galactic l,b) and press corresponding "SUBMIT" (if EPOCH2=EPOCH1, EPOCH2=EPOCH1+10). ...

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... 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 Radon transform (also known as the Hough transform) is formulated as a family of line integrals through a two-dimensional function. ... The Radon transform provides us with a simple means of computing the FF plane of the autochirplet transform, by using the Wigner distribution, and arriving at a transform space that tells us basically the same information as the chirplet FF-plane, except that we benefit from the greater resolution of the Wigner distribution. ...

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• The Frequency-Frequency (FF) Plane
• Gaussian Chirplet Transform (GCT)
• The Chirplet Transform: Physical Considerations

spaceweb@oulu.fi - last update: 21 December 1998, 1400 UT (RR) . ... This is not as trivial a question as one might think, since it is not enough to know the location with respect to the Earth and/or the Sun in some arbitrary coordinate system. One may have to consider things like differences between the solar equatorial plane and the Earth's orbital plane, the changing direction of Earth's spin axis during the year, and the magnetic dipole orientation. ... Geocentric solar ecliptic . ...

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• Space Physics Group of Oulu

... Do Kester Address: guspace!do or rugfx4!do (uucp) Use: call irco_transform( xyz1, I double precision array(3,n) coor1, I integer xyz2, O double precision array(3,n) coor2, I integer n ) I integer xyz1 vectors to be transformed coor1 coordinate system in which XYZ1 are given coor2 desired coordinate system n number of vectors to be transformed xyz2 vectors in system coor2 Description: The vectors in XYZ1 and XYZ2 are three-dimensional unit vectors. ...

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• COORDINATES general subroutines
• casacore: coordinates/Coordinates/LinearXform.h File Reference
• WCSLIB: log.h File Reference

The "grand sum" coadded HDF/IRIM images were geometrically transformed into registration with the 4096x4096 HDF/WFPC2 mosaics using the IRAF "geotran" task, and then rebinned back down to 1024x1024 format with appropriate pixel weighting from the exposure maps . ... The corrected astrometric zeropoint was propagated into the headers of the 4096x4096 HDF/WFPC2 mosaics, and the WCS was then transferred to the HDF/IRIM images after registration with the WFPC2 data. ... Return to the HDF/IRIM home page . ...

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• CSPICE Routines: ROTVEC_C
• CSPICE Routines: TIPBOD_C
• Introduction

... Tonight's Sky . ... SET т?? ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How were the constellation boundaries set? They appear pretty arbitrary. ... If you think the constellation boundaries look arbitrary now, consider the situation a century ago. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• Icy aquifers on Titan transform methane rainfall | Astronomy.com

... It uses the transformation parameters computed by the command ASTROMET/TRANSFORM . ... ASTROMET/COMPUTE computes the RA,Dec coordinates from X,Y coordinates directly from the transformation parameters, while it obtains X,Y from the RA,Dec ones in an iterative manner. Also note that the equinox of the computed coordinates is the same as the standard star catalogue (which is NOT necessarily the same as its epoch) and is 2000.0 in case the PPM catalogue is used. ...

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• Transformations
• ASTROMET/TRANSFORM
• Image Coordinates

Clear the screen and display a title at the top} display_title(++ TRANSFORMATION of CELESTIAL COORDINATES ++) {Set the delimiter to % so that commas can be used in the prompt string} set_delimiter(%) {Get the coordinates to transform from and into} ask_for_character ( Transform from which system [h,a,r,e,g]%hareg%c1) ask_for_character (........... to which system [h,a,r,e,g]%hareg%c2) new_line {Write an appropriate message depending on the ...

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... Matrix of Transformation | ... Software | ... The software includes: . attidf.for - a FORTRAN subroutine to get a matrix M (named PA in the subroutine text) to transform any vector from the S/C coordinate system to the GSE coordinate system: . V GSE = M * V S/C . To transform a vector from the GSE coordinate system to the S/C coordinate system transpose the matrix M: . ... We want to know the direction of this vector in the GSE frame for date: 30.05.1997, time 1h.0min.0sec. ut. ...

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• Space physics cordinate systems
• Coordinates of the magnetic obsevatory polygons
• INTERBALL IB_TAIL landing point coordinates

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... When we designed the exhibit, we wanted the zodiacal constellations to be indicated. However, whereas the Orrery is laid out in the ecliptic plane, constellations are defined in B1875 equatorial coordinates. Therefore for each adjacent pair of zodiacal constellations, we calculated the point at which the J2000 ecliptic intersects the boundary between the two constellations. ... numbers . plot . image . ...

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... Posts tagged ?Laplace transform? ... In addition to astro-ph papers, although they are not directly related to astrostatistics, I include a few statistics papers which may be profitable for astronomical data analysis. ... ArXiv] 1st week, Nov. ... Tags: bootstrap , EGRET , Fisher information , Laplace transform , maximum likelihood , PCA , PDF , Poisson , Ratio , Uncertainty , variance . ... 1 Comment . ... Entries RSS . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) ....

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• The AstroStat Slog Fourier Transform
• Spatial Region Coordinates
• Celestial Coordinates from Image Coordinates

... JPEG 2000, the new International Standard for still image compression, has many unique features that offer advantages for users of astronomical data. ... JPEG 2000 is the new International Standard for digital image compression. ... Figure 1 is a flow diagram of the JPEG 2000 algorithm. ... For these applications, it is desirable to have a JPEG 2000 implementation that buffers up the smallest possible number of image lines before compression, and releases the compressed data directly to the downlink...

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• World Coordinate Systems as Objects
• Astronomical Image Compression Using the Pyramidal Median Transform
• Representations of Celestial Coordinates in FITS

In this method the fields outside and inside a particle are represented by expansions in term of proper basis functions (practically always the vector spherical harmonics). Since the particle surface does not coincide with the coordinate surface, it is impossible to satisfy the boundary conditions exactly, and the expansions are limited by a finite number of terms, and the boundary conditions are considered in a finite set of points (matching points). ...

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• Integral equation method

... SMIS ] . PROJECT "FOREST FIRES 96" . ... Moscow . ... Vologda (east part) . ... Komi (north part) . ... Komi (south part) . ... Ural (north part) . ... Ural (south part) . ... Tyumen (north part) . ... Tyumen (south part) . ... Irkutsk . ... Krasnoyarsk (north part) . ... Krasnoyarsk (south part) . ... Irkutsk region (north part) . ... Irkutsk region (west part) . ... Irkutsk region (east part) . ... Chita (north part) . ... Khabarovsk (north part) . ... Sakhalin (north part) . ...

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• XV-GEOREF

... StarCalc Home Page - Downloads . ... File . StarCalc (English version) . ... With minimal configuration, version 5.72 of StarCalc includes the next interfaces: "Horizon", "Horizontal coordinategrid", "Equatorial coordinate grid", "Constellation boundaries", "Constellation lines", "Constellation names", "Star proper names", "Bright Star Catalog", "Deep-sky objects", "Sun", "Moon" and "Planets and satellites" . Plugins for StarCalc . ... Interface to NGC 2000 (plugin + catalog file) . ...

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Drift scan are are normally done in coordinates of date (current coordinates). ... The telescope then remains fixed as the sky drifts by. ... Since the az, za is remaining fixed, the drift is being done in current not J2000 coordinates. ... To see how large this change was, a drift scan in J2000 coordinates (15 asecs/sidereal sec epoch J2000) was computed and then the relative motion of the az, za coordinates were plotted. For each day computed: . ... 2005: .5 amin/hour . 2006: .6 amin/hour . ...

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• NAIC-IRIDIUM Coordination Agreement
• Frequency Coordination
• GALFA Coordinate Search

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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... AstroCC is a coordinate conversion utility for astronomy. It accepts an object designation or the coordinates of an object and calculates coordinates in alternative systems, and at different dates, times, and locations. It also provides lunar and bright planet coordinates to aid in planning observations. ... BJD values may also be retrieved from http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html which is based on Eastman et al. ... Coordinate data are obtained from SIMBAD. ...

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• Wand (ImageJ API)
• XYWriter (ImageJ API)
• Transformer (ImageJ API)