... Abstract Compute the geometric position of a target body relative to an observing body. ... Detailed_Output pos contains the position of the target body, relative to the observing body. ... Particulars spkgps_c computes the geometric position, T(t), of the target body and the geometric position, O(t), of the observing body relative to the first common center of motion. Subtracting O(t) from T(t) gives the geometric position of the target body relative to the observer. ... Link to routine source . ...

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• Mode = POSConfig = FGS
• CSPICE Routines: SPKGEO_C
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Next: Computation of the Up: Typical Run Previous: Edition of the . This table is used both as an input and output by the main program. The table content is: . INPUT . Parameters relative to the absorption lines . ... OUTPUT . In output, the program will write in this table, for each absorption line, the velocity of the corresponding cloud relative to the source and its redshift (relative to the observer). A template of this table can be found in MID_CLOUD:ABSC.TBL . ...

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• Documentation: LEDA: parameter: vvir
• Input Data and Preprocessing
• HyperLEDA documentation: compilation of cz measurements (a110)

... 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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• Frames of Reference: The Basics
• Energetic Particles
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lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... python . ... axis . coordConvWithFP.py . ... 22 љ def coordConvWithFP (fromCoordSys, fromPVTPair, fromPxPMRadVel, fromDir, toCoordSys, obj, inst, zeroPM, useGSWavelen): . 23 љ """!Convert a coord from one coordinate system to another . ... 35 љ @param[in] obj object block computed at desired desired TAI date of conversion . ... 50 љ obj = tcc.base.Obj(obj) # make a copy so I can change obj.site if useGSWavelen . ... tcc.axis.rotFromObs.rotFromObs . ...

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• lsst.tcc: tcc.axis.instFromObs Namespace Reference
• lsst.tcc: tcc.axis.ptCorrFromObs Namespace Reference
• lsst.tcc: tcc.axis.gProbeFromObs Namespace Reference

... Velocity and acceleration always need to be measured relative to some fixed benchmarks, which define a "frame of reference. ... This section highlights the simple concept, that two frames of reference moving relative to each other with a constant velocity are completely equivalent, and the same laws of mechanics hold in both. ... Section 22a describes how the motion of the Earth modifies the apparent positions of stars and the arrival direction of the solar wind. ... This lesson plan supplements: . ...

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• Transits of Venus
• Lagrangian Points
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Next: ATCA Spectral Line Correlator Up: Spectral Line Data Reduction Previous: Spectral Line Data Reduction . Because of the Doppler effect, the observed frequency of a spectral line can be related to the radial velocity between the observer and the source. ... where v is the radial velocity, the observed frequency, the rest frequency, and c is the speed of light. ... Next: ATCA Spectral Line Correlator Up: Spectral Line Data Reduction Previous: Spectral Line Data Reduction Miriad manager . ...

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• Proper Motion
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Start Data Acquisition - Selected Wavelengths - 22/Apr/2014 16:21:46.647 Observation Type - Grid Images - 22/Apr/2014 16:21:46.662 22/Apr/2014 16:21:48.700 Begin Iteration #1 of 2 - Number of Frames : 17 - 22/Apr/2014 16:21:48.714 Filter : 6563 (Position 3) | ... Acquisition Time : 22/Apr/2014 16:21:48.839 | ... ExpTime (sec) : 0.030 | Stokes : I Filter : 6563 (Position 3) | ... Stokes : I Begin Iteration #2 of 2 - Number of Frames : 17 - 22/Apr/2014 16:21:51.321 Filter : 6563 (Position 3) | ...

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• http://www.arcetri.astro.it/~gcauzzi/SOLARNET/SN.2014.1.05/22Apr2014/spectral/TargetImages/20140422_160644/log_20140422_160644.txt
• http://www.arcetri.astro.it/~gcauzzi/SOLARNET/SN.2014.1.05/22Apr2014/spectral/GridImages/20140422_162807/log_20140422_162807.txt

... A document window is shown, with 8 lines (numbered 1 to 8), each 24px high. The text of the "outer" box (at the end of line 1, halfway into line 2, and halfway into line 3) is shifted upward 12px. The text of the "inner" box, thought shifted upward as well, has been relatively positioned so that it lies in its normal flow position at the end of line 2. ... The lines, as they appear in the image, contain: Start 1 Beginning of body contents. 2 of outer contents. Inner contents. ...

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

... the time of observation . ... Observing the Changing Position of the Sun To Establish Cardinal Directions . ... Observations of the Sun's apparent movement across the sky and its pattern of rising and setting in the east and west horizon helped to establish the cardinal directions. ... The final stage of the Sun's return was marked by the observation that the Sun had reached its highest altitude when the full width of your mitted hand could fill the gap between the Sun and the horizon. ...

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• ASP: This Restless Globe
• ASP: A Taste of Real Astronomy ? The ESA/ESO Astronomy Exercises
• ASP: AstroCappella - A Musical Exploration of the Universe

... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

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• Relations
• ChaMPlane apj_appendix

Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences PUL Analysis Center Pulkovo IVS Analysis Center (PUL) 2009 Annual Rep ort Zinovy Malkin, Natalia Miller, Elena Popova Abstract This report briefly presents the PUL IVS Analysis Center activities during 2009 and plans for the coming year. The main topics of the investigations of PUL staff in that period were ICRF related studies, computation and analysis of EOP series, and VLBI2010 related issues. ...

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• Pulkovo NEO Page: Estimation of Accuracy of the Observations

Next: Identifications and Efficiency Up: THE DEEP X-RAY RADIO Previous: Source Classification . ... For some sources which did not have NVSS positions before the time of optical observations, arcsecond positions from the Texas survey (Douglas et al. 1996) and NED (typically based on VLA data) were used. ... All X-ray/radio sources without counterparts on the survey plates were imaged at either the KPNO 0.9m or the CTIO 0.9m telescopes. ... Previously Identified Sources . Sample Properties . ...

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• A visual tour
• The Relative Position of the Companion to HD 3651 | ESO
• Astroclimatology of La Silla

... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. The straight lines are regression fits, whose slopes yield the subsystem’s rotation rate. The second column shows the relations between metallicity and distance from the Galactic plane. ... privious figure | next figure . ...

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• Vertical Structure, figures

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 06 - 12.04.2015, Forecast on 13 - 20.04.2015, Carrington Rotation 2162 (27,93.03.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL ALL DAYS. ... BY DATA OF CORONOGRAPHS SOHO AND STEREO WERE OBSERVED > 38 CME FROM WHICH FOUR WERE "PARTIAL HALO II" TYPE. ... R - solar rotations; KP - KIT PEAK solar observatory; EE-date of possible geomag. disturbance in the Earth's environment. ...

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• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20140714.en.txt
• http://www.izmiran.rssi.ru/services/saf/archive/en/2014/obzor20140609.en.txt

XMM­Newton CCF Release Note XMM­CCF­REL­86 EPIC MOS ASTROMETRY B. Altieri August 2, 2001 1 CCF components Name of CCF VALDATE List of Blocks changed CAL VERSION XSCS flag EMOS1 LINCOORD 0016 2000­01­01T00:00:00 FOV NO EMOS2 LINCOORD 0016 2000­01­01T00:00:00 FOV NO 2 Changes The relatove positions between CCDs for both MOS cameras have been adjusted to provide the highest astrometric accuracy over the full field­of­view of the MOS cameras. ...

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• http://xmm.vilspa.esa.es/external/xmm_links/trainee/alumni/a_martin.pdf
• Description
• LARGESCALESENS

... The Cross-Quarter Days thus mark the middle of each season under our current system, or seasonal boundaries under the alternative system. ... Beltane / Bealtaine - Celtic bonfire festival May 4-7 2nd Cross-Quarter Day May 5 - Cinco de Mayo (Mexico) May 2nd Sunday - Mother's Day May last Monday - Memorial Day ( Decoration Day , officially May 30) June 14 - Flag Day June 3rd Sunday - Father's Day June 20-22 2nd Quarter Day - Summer Solstice June 21 - Litha (Norse/Anglo-Saxon for ...

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• gps rfi aug08
• Spectral-Line Observing

makeasn -- Group images in "associations" makeasn *cal.fits . ... The output are calnicb type "associations" tables. These tables contain the names of the images in each group, and the relative offset of the images in pixels. These files can be used to co-add iamges either with calnicb or with asncombine. ... In addtion, the observing time as well as the relative orientation of the imgages can be used as a criterion for an images to be included in a group. ...

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• Photometric Performance of NICMOS

... 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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• Prototypical Operations Support Tools for NASA Interferometer Missions:
• NICMOS Calibration Pipeline: Processing Associations of Exposures
• RVSAO 2.0 - A Radial Velocity Package for IRAF

Contents. planet: 5 - Jupiter satellites: J1 - Io : 10, J3 - Ganymede : 15, J4 - Callisto : 6 total number: 31 type: relative dates: 1997-1997 observatory: see observatories list in the relevant article. ... Emelianov N. V., Vashkovjak S. N. (2009) Astrometric results of the observations of the mutual occultations and eclipses of the Galilean satellites of Jupiter in 1997. ... Position angle A in degrees (topocentric for mutual occultation or heliocentric for mutual eclipse) 10. ...

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• jg0036
• jg0028
• jo0031

Next: Galactic potential Up: Space and velocity distributions Previous: Space position . The initial velocity of young neutron stars can be taken either from the observed pulsar velocity distribution (which is still not firmly established), or from some model-dependendent assumptions based on current ideas about neutron star formation. ... At the same time we need know the distribution of projected velocities on the direction of the systematic motion in the Galaxy (i.e. on the direction of ) . ...

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• Restrictions on the Scenario Parameters
• Spatial distribution of X-ray binaries at the Galactic center after the
• Discussion and conclusions