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http://www.iki.rssi.ru/mirrors/stern/stargaze/Fmars3.htm.
http://www.iki.rssi.ru/mirrors/stern/stargaze/Fmars3.htm.
1. INTERBALL TAIL PROBE SITUATION ANALYSIS
Tail Probe is one of the satellites of the INTERBALL program. ... Collection of the orbital elements | ... Flight situation analysis during operations scheduling . ... Two stages of the orbital situation analysis are presented: . ... The satellites motion calculation during the flight situation analysis is based on the orbital elements, determined by the Ballistic center at KIAM RAN. The modified (by backward integration) orbital elements are usedduring the aposteriory situation analysis. ...
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Ссылки http://www.iki.rssi.ru/vprokhor/tail.htm -- 5.5 Кб -- 20.04.2000
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/vprokhor/tail.htm -- 5.5 Кб -- 20.04.2000
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/vprokhor/tail.htm -- 5.5 Кб -- 20.04.2000
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2. Generation from In-Orbit Data
... Analysis of in-orbit data closely follow the CSL data analysis. Stars with known astrometric positions are matched with their image centroids. ... The measured position, the expected position and the offset between the measured and expected positions are calculated and written into a file. ... select catalogued positions for different observations/pointings (e.g. positions of objects in photometric sequence) . ... The new distortion map was generated from in-flight observations of the G153 field. ...
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Ссылки http://xmm.vilspa.esa.es/calibration/documentation/CALHB/node912.html -- 5.9 Кб -- 20.09.2011
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3. Calculating the Position and Velocity Components of HST
... 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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Ссылки http://www.adass.org/adass/proceedings/adass94/aket.html -- 12.3 Кб -- 03.11.2000
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4. HST Primer for Cycle 22
HST Call for Proposals and HST Primer for Cycle 24 . ... Hubble Space Telescope Primer for Cycle 24 > Chapter 2: System Overview > 2.2 Orbital Constraints . ... Orbital Constraints . ... HST is in a relatively low orbit (less than 600 km above Earth), which imposes a number of constraints upon its observations. ... As the HST orbit precesses and the Earth rotates, the southern part of the HST orbit intersects the SAA each day for seven to nine orbits in a row (so-called ?SAA-impacted? orbits). ...
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Ссылки http://www.stsci.edu/hst/hst/proposing/documents/primer/Ch_2_Systemoverview3.html -- 13.5 Кб -- 12.04.2016
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5. Mercure et V†йnus †а lтАЩextr†йmit†й de leur orbite | Ciel et Espace
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Mercure et V†йnus †а lтАЩextr†йmit†й de leur orbite . ... Pour en savoir plus sur cette configuration des plan†иtes Mercure et V†йnus, lisez l'article que nous lui consacrons dans Ciel & Espace de janvier 2011 , n€ђ488, p.36. ...
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Ссылки http://www.cieletespace.fr/node/6540 -- 30.0 Кб -- 09.04.2016
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6. Lagrangian Points
... 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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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/EAMAGSPH/wlagran.html -- 7.8 Кб -- 21.12.2007
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7. A visual tour
... To plot the data (and model, here xitau.model), I have read the model, computed the model values for the ASTROMETRY, and used Plot|ASTROMETRY to produce the ASTROMETRY plot widget. ... First, plot the data and with Util|Ellipse and the mouse buttons interactively define an apparent ellipse to fit your data as best as you can. ... Under Util|Orbit, there is a Thiele-Innes procedure to estimate the orbital elements using your apparent ellipse and Kepler's laws! ... Back to tour page . ...
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Ссылки http://www.eso.org/~chummel/oyster/tour.orbit.html -- 3.2 Кб -- 26.11.2007
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8. Keywords_65
Method for High-accuracy Determinations of Orbits of Small Bodies from Three Observations . ... A new method is suggested for finding the preliminary orbit of a small celestial body from three pairs of angular measurements of its position at three moments. ... The methodical error of orbit computation by the proposed method is generally three orders smaller than the corresponding error of the traditional approach based on the construction of the unperturbed Keplerian orbit . ...
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Ссылки http://www.ipa.nw.ru/PAGE/EDITION/transaction/tbook/65.htm -- 3.9 Кб -- 02.10.2012
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9. Helene: Image of the Month | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Moon . ... Space Flight . ... Science Fiction . UFOs and Fringe Science . Monthly Sky Notes . ... NASA's Cassini spacecraft obtained this image of Saturn's moon Helene on June 18, 2011. Image credit: NASA/JPL-Caltech/Space Science Institute) . ... Your email address will not be published. ... Email * . ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...
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Ссылки http://www.armaghplanet.com/blog/image-of-the-month-helene.html -- 40.8 Кб -- 09.04.2016
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10. Mars orbiter repositioned to phone home Mars landing | Astronomy.com
... Tonight's Sky . ... Mars . ... Home . ... Observing . ... Mars orbiter repositioned to phone home Mars landing . ... Two other Mars orbiters, NASAт??s Mars Reconnaissance Orbiter and the European Space Agencyт??s Mars Express, also will be in position to receive radio transmissions from MSL during its descent. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....
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Ссылки http://www.astronomy.com/news/2012/07/mars-orbiter-repositioned-to-phone-home-mars-landing -- 68.4 Кб -- 10.04.2016
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11. Description of the RadioAstron project, english version
Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/description/support_eng.htm -- 14.3 Кб -- 10.05.2008
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12. Orbital Properties of the Solar System
. Mars is "behind" the sun from the earth's point of view and is therefore not visible in the nighttime sky (i.e. its up in the daytime). Venus it at greatest elongation and appears in the western sky as a bright object for 2-3 hours after sunset .
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Ссылки http://zebu.uoregon.edu/disted/ph121/l4.html -- 5.5 Кб -- 06.01.2005
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13. Orbits in the period / acceleration plane
... Binary orbits in the acceleration/period plane . Circular Orbits . ... We first present the equations for the period and acceleration of a pulsar in an eccentric binary system as a function of its position in the orbit. ... In Freire, Kramer & Lyne (2001) (from where most of this text and following equations are taken), we describe in more detail how circular binary orbits can be determined from the observed periods and accelerations of the pulsar. ... where is the orbital period of the binary. ...
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Ссылки http://www.naic.edu/~pfreire/orbits/ -- 20.7 Кб -- 20.12.2008
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14. Stellarium: core/modules/Orbit.hpp Source File
Stellarium 0.12.3 . ... FileљStructure . ... core . modules . Orbit.hpp . ... 8 љ // modify it under the terms of the GNU General Public License . ... 27 љ Orbit ( const Orbit &); . 28 љ const Orbit &operator=( const Orbit &); . ... 35 љ EllipticalOrbit ( double pericenterDistance, . ... 52 љ // parentRotObliquity and parentRotAscendingnode must be supplied. 53 љ void positionAtTimevInVSOP87Coordinates( double JD, double * v) const ; . ... 62 љ double eccentricAnomaly( double ) const ; . ...
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Ссылки http://astro.uni-altai.ru/~aw/stellarium/api/Orbit_8hpp_source.html -- 24.5 Кб -- 28.02.2014
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15. Dynamics of Pluto
From a bird's eye view of the ecliptic, it is clear that Pluto's orbit is more eccentric than any other planet's. Pluto's orbit appears to intersect Neptune's, and for a period of about 20 years Pluto is slightly closer to the sun than Neptune. ... The libration of Pluto's orbit is due to an exchange of angular momentum with Neptune. When Pluto is "catching up" to Neptune, it gains angular momentum at Neptune's expense. ...
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Ссылки http://www.sai.msu.su/tnp/plutodyn.html -- 3.4 Кб -- 01.10.2012
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16. Epimetheus and Janus: Interchangeable Moons of Saturn
... Epimetheus and Janus: Interchangeable Moons of Saturn . ... 2.11.2005 . ... Credit: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: These two moons change places. Epimetheus and Janus , two small moons of Saturn , actually switch positions as they orbit their home planet. ... One moon orbits Saturn well ahead of the other, at first. ... Pictured above , the two moons were photographed rounding their orbits just outside of Saturn's F ring . ... Publications with keywords: Saturn . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1209167 -- 14.0 Кб -- 02.11.2005
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17. Faulkes Telescope
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The asteroid is only the second known object in a so-called "Martian horseshoe" orbit, going around the Sun on nearly the same orbit as Mars. б Unlike the planet's two known moons, Phobos and Deimos, which orbit Mars much like an artificial satellite orbits the Earth, the unusual asteroid moves in a more complicated "horseshoe" pattern along the orbit of Mars, with the open end of the horseshoe centred near Mars itself. ...
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Ссылки http://star.arm.ac.uk/press/2010/Faulkes-Jan/ -- 8.5 Кб -- 26.01.2010
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18. casacore: casa::MSAntennaEnums Class Reference
... Classes . ... casa . casa::MSAntennaEnums . ... Enums for the MeasurementSet ANTENNA table. More... #include < MSAntennaEnums.h > . Inheritance diagram for casa::MSAntennaEnums: . List of all members. enum . ... The ANTENNA table colums with predefined meaning. ... This class contains the enums for the MeasurementSet ANTENNA table . ... enum casa::MSAntennaEnums::PredefinedColumns . ... Axes offset of mount to FEED REFERENCE point. ... enum casa::MSAntennaEnums::PredefinedKeywords . ...
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Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1MSAntennaEnums.html -- 20.0 Кб -- 14.02.2011
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19. Broadcasting
. Broadcasting . Microsoft Media Player or . Real Media Player is necessary to view OC "Mir" position in orbit . OC "MIR" position in orbit . Video and audio information archives . 1 . OC "Mir"- "ProgressM1-5" after docking press-conference . 27.01.2001 .
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Ссылки http://www.mcc.rsa.ru/www_old/Mir/www_eng/MIR/video/video1.htm -- 5.3 Кб -- 28.05.2014
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20. http://www.gao.spb.ru/english/as/j2014/presentations/vavilov.pdf
Institute of Applied Astronomy Russian Academy of Sciences Method of Determining the Orbits of the Small Bodies in the Solar System Based on an Exhaustive Search of Orbital Planes Dmitrii Vavilov, Yurii Medvedev Introduction to the problem: Let we have n 3 positional observations of a body: points in time ( = 1, ) , right ascensions , and declinations . ... Determination of the orbit using the Gauss method of determining orbital elements based on two heliocentric positions and points in time. ...
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Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/vavilov.pdf -- 386.7 Кб -- 31.10.2014
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