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On 6 may 2001 the azimuth was parked at az=214.4 degrees and the dome was at 19 degrees za with motors off and the brakes on. At 7:40:49 the azimuth started moving do to the wind. ... The operators began moving the dome downhill at azimuth 258 degrees. The dome was at 18 degrees by the time the azimuth stopped moving. The azimuth rail had been greased the previous week. ... The red shows the dome position during this time (the top red line is 19 degrees and the bottom one is 18 degrees). ...

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• http://www.naic.edu/~phil/hardware/vertex/jonhagen/servoloop.pdf
• on,off position switching offsets
• Orbits in the period / acceleration plane

Full derivation of the projectile motion equations Acceleration is defined as the rate of change of velocity. So, by definition... dv a= dt For the projectile motion case, acceleration is constant. ... To undo differentiation, you need to integrate. ... The right hand is just the integral of the differential of v - i.e. it takes you back to v. For the left hand side, to integrate a constant, multiply it by whatever variable you are integrating against (in this case, t) and add a constant. ...

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• http://www.mso.anu.edu.au/pfrancis/phys1101/Lectures/L03/lecture03.pdf
• http://www.mso.anu.edu.au/pfrancis/phys1101/Lectures/L09/Lecture09.pdf
• http://www.mso.anu.edu.au/pfrancis/phys1101/Lectures/L07/Lecture07.pdf

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

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• Satellite position in the SE and GSM coordinate systems
• The Favourable Spatial Position Criteria
• The Favourable Spatial Position

... Impact on source motion in Galactic coordinate system is given by Kovalevsky (2003), Malkin (2011) l cos b = -A sin l, b = -A cos l sin b, where A = R0 02 /c is the galactocentric acceleration called hereafter the GA constant. ... We just have to return to the traditional many-centuries-old astrometric practice of modelling the position of a celestial object as a linear trend with two parameters: the position at the initial (conventional) epoch and the apparent (proper) motion. ... 2011). ...

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... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

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• The Human Orrery
• PhD position, Centre for Astronomy, NUI Galway: deadline 18 July 2008 |

. Next: Initial velocity Up: Space and velocity distributions Previous: Space and velocity distributions . Following Paczynsky (1990), we assume initial space distribution of young neutron stars to be varying exponentially with distance from the Galactic center and from the Galactic plane, that is probability distribution for young neutron star positions can be written in the form . with kpc, and pc. Mike E. Prokhorov . Fri Jul 19 19:16:07 MSD 1996

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... 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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lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . FileљList . ... python . tcc . mov . pathSegment.py . ... 22 љ def __init__ (self, pA, vA, pB, vB, dt, doPos): . ... 92 љ # Note that lim (j->0) t_pexArr = - vA / aA, yet the equation used below . ... tcc.mov.pathSegment.PathSegment.pMax . ... Definition: pathSegment.py:83 . tcc.mov.pathSegment.PathSegment.dt . ... tcc.mov.pathSegment.PathSegment.__repr__ . ... Definition: pathSegment.py:130 . ... tcc.mov.pathSegment.PathSegment.aPeak . ...

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• lsst.tcc: python/tcc/mov/fullSlew.py Source File
• lsst.tcc: python/tcc/mov/checkSegment.py Source File
• lsst.coordConv: coordConv::Coord Class Reference

... In polar coordinates, the point P is defined by its distance r from the origin O (see drawing) and by its polar angle ("azimuth" on a map) between the x-axis and the "radius" r = OA, measured counter-clockwise. ... When one or both are negative , the angle f is larger than 90 degrees, and such angles never appears in any right-angled triangle. ... There is a simple solution , though: use the above equations to re-define sin f and cos f for such larger angles! ... But it also works for larger angles....

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• Lagrangian Points
• The Favourable Spatial Position Criteria
• The Way Things Fall

... Classes . ... Class List . ... casa . casa::SolarPos . ... Solar position class and calculations. ... SolarPos (const SolarPos &other) . ... operator() ( Double epoch) . ... Barycentric position of Earth. const MVPosition & casa::SolarPos::baryEarthDerivative . ... Barycentric position of Sun. const MVPosition & casa::SolarPos::barySunDerivative . ... Double casa::SolarPos::checkEpoch [private] . ... Double casa::SolarPos::checkSunEpoch [private] . ... Double casa::SolarPos::deval [3] [private] . ...

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• kpvslice: interactive position-velocity slicing
• Pulsar Group Main/Multibeam Geometry
• impol

Compilation of cz (radial velocity) measurements . HyperLeda home | Documentation | ... The catalog (table a110 in the database) presents the compilation of redshift of galaxies, z , z = ( - 0 ) / 0 = ( 0 - ) / where and 0 refer the observed and emitted wavelength, and 0 are the observed and emitted frequency. ... For homogeneity of the HyperLEDA, the radial velocity from "radio" convention has to be transferred to redshift using formula cz = V radio / (1 - V radio /c). ... radio measurement . ...

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• Order Definition
• Cosmological Constant
• Source Positions

... Abstract This routine locates the point on the surface of an ellipsoid that is nearest to a specified position. ... Brief_I/O VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- positn I Position of a point in bodyfixed frame. a I Length of semi-axis parallel to x-axis. b I Length of semi-axis parallel to y-axis. c I Length on semi-axis parallel to z-axis. npoint O Point on the ellipsoid closest to positn. alt O Altitude of positn above the ellipsoid. ...

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• Sample Shifting
• CCD Position and Orientation on Sky
• PSF Variations with Field Position

This is a copy of a Press Release from E.S.O. This photo shows the faint image (circled) of a new transneptunian object, discovered with the ESO 3.5-metre New Technology Telescope in October 1994. ... Six accurate positions were measured and allowed to determine an approximate distance of about 42 AU, that is 6300 million kilometres from the Sun. ... It has in the meantime been given the designation "1994 TG2" by the Minor Planet Center of the International Astronomical Union. ... ESO/La Silla | ...

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• POLIMODEL (V2.00) --- November00 --- POLIMODEL (V2.00)
• Position of RS Pup in the Galaxy (Arstist's Impression) | ESO
• Positions of 2M1207A and of its Companion | ESO

. Computer Ephemeris. Lunar equatorial positions. Explanations. Each row contains at 0 h and 12 h of Time Dynamical Terrestrial: month, day, apparent right ascension (hours, minutes, seconds), apparent declination (degrees, minutes, seconds of arc) and geocentric distance (in Earth's radii).

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• Contents of Computer Ephemeris for 2014 (DE200/LE200).
• Contents of Computer Ephemeris for 2015 (DE200/LE200).
• Contents of Computer Ephemeris for 2016 (DE200/LE200).

... The routine returns the offset (deltaX, deltaY) from the linear grid position for a specified detector location. ... the distortion (deltaX, deltaY) at the detector location (rawX, rawY) is derived from the distortion map stored in the extension FILTER-FilterId (e.g. FILTER-U, FILTER-V, FILTER-GRISM1 etc.) ... interpolate the extracted distortion points (RAWX_OFF ,RAWY_OFF ) and calculate the distortion (deltaX,deltaY) at the requested postion (rawX, rawY) . ... deltaX, deltaY . ...

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• Algorithm
• FITS file position IO.

... Galaxies, AGN, Cosmology . ... Blowin' in the wind: both `negative' and `positive' feedback in an obscured high-z Quasar . ... However, finding observational evidence of the effect of such AGN negative and positive feedback is still one of the main challenges in extragalactic astronomy . ... The results of this work are presented in the article " Blowin' in the wind: both `negative' and `positive' feedback in an obscured high-z Quasar ", Astrophysical Journal (in press; arXiv:1411.4208 ) . ...

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• Positions
• IBIS - Installation
• Algorithm

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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• Dynamic HTML in Communicator
• Long description illustrating absolute positioning with respect to the initial
• Warbling Chirplet: Analysis of Signals of Oscillating Frequency

Multichannel Flare Spectrograph . ... phi - the angle between the green vertical line passing through the solar disk image and the violet radius vector "r" of the object located at the center of the spectrograph slit- red cross. positive - clockwise, negative - counterclockwise . ... mx = x coordinate of the coelostat main mirror . ... x : carthesian solar coordinate alog axis parallel to solar equator (in arcsec) . y : carthesian solar coordinate alog axis parallel to solar axis (in arcsec) ...

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• IMCCE-SAI: Natural Satellites Service. Ephemerides. Satellites de Neptune
• IMCCE-SAI: Natural Satellites Service. Ephemerides. Satellites de Pluton
• IMCCE-SAI: Natural Satellites Service. Ephemerides. Galileans

polimodel -- Produce model linear polarization and position angle images . ... Whether to apply random errors to output polarization and position angle values. seed = "" [integer] . ... This task produces a model linear polarization image and corresponding position angle image from an input image assumed to represent intensity (Stokes I parameter). ... A threshold for the input image can be defined such that polarization and position angle are not computed for input values less than this threshold. ...

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• TRANBACK (V0.2) --- Dec99 --- TRANBACK (V0.2)
• TRAXY (V0.4) --- Dec99 --- TRAXY (V0.4)