... The simple pair of formulas derived in problem (8) . ... around the z axis, , giving the above result and producing (x',y'), while z remains the same, so that in the new system z' = z. Then we rotate (x',y',z') by an angle ? around the x' axis, using the same formulas but with (y',z', ?) in place of (x,y, ?) ... Knowing its semi-major axis a, eccentricity e and mean anomaly M, one can derive its true anomaly f (using appropriate formulas, not given in #12a) and from it the radial distance r . ...

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• The INTERBALL Auroral PROBE orbital elements collections
• About modification of the INTERBALL orbital elements
• INTERBALL TAIL PROBE SITUATION ANALYSIS

... Contents . ... Sidereal time . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Matrix elements for conversion to CIRS . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ... Conversion of mean time to sidereal time (with accuracy 0.001 s and 0.0001 s ) . ...

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• AY2012 (contents)
• AY2014 (contents)
• AY2015 (contents)

... The SIAM is used to point the satellite such that a nominal on-axis source position is imaged onto a specific point on the detectors. ... New angles for the SIAM are calculated from shifts of the pointing of the instrument given in parameter Instrument relative to the pointing obtained by using the SIAM that is specified by parameter siamset . ... Using this, the positions of 5 test sources in the FOV of the instrument are calculated. ... Source Number . Ra (arcmin) . Dec (arcmin) . ...

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• Spatial region settings
• xmmtrack: XMM orbit TRACKing

... ACQ-DIST Optional Parameter for FGS 1 , 2 . ACQTYPE Optional Parameter for STIS . Acquisition modes . ... Aperture Coordinate System . ... AFTER date Special Requirement . ... BINAXIS1, BINAXIS2 Optional Parameters for STIS 1 , 2 . ... BUFFER-TIME Optional Parameter for STIS . ... CHECKBOX Optional Parameter for STIS . ... Calibration Targets . ... CR-SPLIT Optional Parameter for STIS . ... DIFFUSE-CENTER Optional Parameter for STIS . ... GAIN Optional Parameter for STIS . ... Position . ...

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• Mode = POSConfig = FGS
• CSPICE Routines: ORDI_C
• CSPICE Routines: ORDD_C

This section is on a higher level than the rest, and is primarily meant for advanced users, who may wonder how orbital motion is actually derived. ... As stated earlier, the motion of a satellite (or of a planet) in its elliptical orbit is given by 3 "orbital elements": . ... 3) The mean anomaly M , an angle growing at a steady rate, increasing by 360 degrees each orbit . ... In polar coordinates ( r,f ) describing the satellite's motion in its orbital plane, f is the polar angle. ... The angles: . ...

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• Elements of Algebra
• From Stargazers to Starships
• Corrected Geomagnetic Coordinates

This diagram illustrates the effects of absolutely positioning a box ("inner") with respect to a containing block established by a relatively positioned ancestor ("outer"). ... The "inner" box has been positioned relative to the top and left edges of the "outer" element's first inline box. ... The reference edges for positioning the "inner" box are indicated in the diagram by thick dashed lines. ... 1 Beginning of body contents.| ... 4 [(+200, -100)] 5 Inner 6 contents. ... Inner contents" is blue. ...

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• Long description illustrating absolute positioning with respect to the initial
• Dynamic HTML in Communicator
• Long description for example illustrating absolute positioning

The beam pattern and the polarization characteristics . of the radio telescope RATAN-600 . The Mueller matrix elements was computed via formulas [1]: . ... The BP were computed by the aperture method, proceeding from the fild distribution in the aperture of the primary mirror. The components of the main and cross-polarization components of the electric field in the vertical aperture of the primary mirror was computed in Frenel diffraction approximation. ...

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Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...

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• Contents of Computer Ephemeris for 2014 (DE200/LE200).
• Spherical and Practical Astronomy
• Celestial Mechanics

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

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• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• Modelling Spectro-photometric Characteristics of Eclipsing Binaries

... Any elements created after this call will be placed in the container. ... After such a shell container has been created, it is not visible yet. ... Main program: /* example9.c -XT */ # include stddef.h # include gipsyc.h # include cmain.h # include init.h # include finis.h # include userfio.h # include ggi.h /* * Button keyword handler for quitting. */ static void quit(ident id, char * key , int code, void *arg) { bool button =toflog(FALSE); ( void )userflog( , 1, 2, ...

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• Satellite Tracking
• Doing lengthy calculations from a GUI
• GRAPHICS general subroutines

Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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... rotang, Date, RA, Dec, Time, accS, ast=ast, ha=ha, lst=lst, jd=jd, az=az, za=za, sep=sep, rotang=rotang, alfabeams=alfabeams . ... It is thus possible to specify, for instance: rotang, ... , ha=haHr, lst=lstHr, ast=astHr . ... alfa_angle - script to launch the GUI . alfa_ang.pro - the GUI: provides input to rotang and a graphical display of the results. rotang.pro - the main routine of the program: finds the required time, the other associated times, Az and ZA using ao_idl routines. ...

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• Alfa_ang - IDL procedure for calculating the optimum rotation angle for ALFA
• Coordination with GPS L3

Next: RSOG Pre-Observation Products . ... Mission Elements . ... The main mission elements (ME) are: . The RSOG, based at ASC, which is responsible for the science operation of the RadioAstron Mission. ... The Main Ballistic(Navigation) Center (MBC) belonging to Lavochkin Association coordinates preparation and exchange of orbit determination and orbit reconstraction ptoducts. ... Experiment codes of five characters are used in naming GRT related files. ... RSOG . ... Corr (GTS?) ... Corr (RSOG?) ...

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• Contingency Plans
• Introduction

... 1915QB4_C22v12p1___ Informations. relative to: J1-Io: 201, J2-Europe: 134, J3-Ganymede: 85 reference frame: astrometric centre of frame: topocentre epoch of equinox: date time scale: GMT (UT1=GMT+12h) reduction: no information coordinates: apparent distance, position angle diff. refraction: removed receptor: heliometer telescope: Refractor, F = 2.5 m, D = 17.8 cm observers: Gill David, Finlay W.H. data included in standard data file: no Comments. no information Format. ... Year of the observation 4....

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• Data bases of Natural Satellites. Documentation. Sources
• Jupiter Outer Satellite Orbit Ephemerides.
• Data bases of Natural Satellites. Documentation. Structure

Russian Version [ MS-Win ] . ... Satellite data ] . SMIS ] . The application is designed to perform high-accuracy geographic referencing and calculate geographic coordinates of satellite data using orbital data. ... The program performs conversion of satellite images into conic or equidistant projection and overlays the coordinate grid over it. ... When necessary the program allows for setting control points for correction of the reference. Shareware version (APT NOAA data processing) . ...

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... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

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• Language Elements
• The Arcetri Spectral Code file format
• Index of /science/chianti/chianti_3.03/elements

... The CAPTION element is used to label a table or figure. Use the align attribute to specify the position of the caption relative to the table/figure. ... CLASS . ... The CLASS attribute is most commonly used to attach a different style to some element, but it is recommended that where practical class names should be picked on the basis of the element's semantics, as this will permit other uses, such as restricting search through documents by matching on element class names. ... ALIGN . ...

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• The Body Element and Related Elements
• The IMG (Image) Element
• Horizontal Tabs

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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• COALA - Cherie Fishlock

Orbital elements of binary components in a hierachical system can be fit to either the visibility data directly or to the separation and position angle data. ... Then use Data|Astrometry to read a previously prepared file ("zetuma.psn") containing the positional data. ... Semi-major axis = 8.4214471 . Semi-minor axis = 4.7663976 . ... We can now use the Thiele-Innes method to estimate the orbital elements from this apparent ellipse and the data, as implemented with the Util|Orbit button. ...

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• ASTROMETRYFIT
• POLIMODEL (V2.00) --- November00 --- POLIMODEL (V2.00)
• A visual tour

... The following functions are used to create, manage, and destroy standard doubly linked lists. Each element in the list contains a piece of data, together with pointers which link to the previous and next elements in the list. ... This adds a new element (with value data ) onto the end of the list. ... This removes the element in the list with the value data ; if the element isn't there, the list is unchanged. void g_list_free( GList *list ); . ... Singly Linked Lists ...

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• HTML Tag Reference
• Specifying Elements in a Table
• HyperLEDA documentation: parameter: celpos