... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

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• P R O T O C O L
• Departement of Quantum Astrophysics

... FIELD | ... public interface Blitter . ImageJ bit blitting classes must implement this interface. ... static int . ... dst=dst+src . ... Field Detail static final int COPY . ... Constant Field Values . static final int COPY_INVERTED . ... static final int COPY_TRANSPARENT . ... static final int ADD . ... static final int SUBTRACT . ... static final int MULTIPLY . ... static final int DIVIDE . ... static final int AVERAGE . ... static final int DIFFERENCE . ... static final int AND . ...

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• EDM (ImageJ API)

Estimations of the change of the Sun s mass and the gravitation constant based on high-accuracy observations of planets and spacecraft . ... More than 635 000 positional observations of planets and spacecraft of different types have been used for estimating possible changes of the gravitation constant, the solar mass, and semi-major axes of planets. ... gravitation constant, positional observation, Sun's mass. ...

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• LAB Ephem. Astronomy
• Keywords_330
• AY2016 (contents)

... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

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• Limits on Phase Correction Performance Due to Differences Between Astronomical
• Determination of the relative orientation between radio and dynamical reference
• OptInt PmWiki : MROIDelayLine / Draft Test List

... Apparent Close Approaches of NEAs to the Stars for April 2016 Observatory 168 Kourovskaya 2016-Apr-01/18h24.9m/ Dist = 4.8 AV= 1.3 / min PA= 85.8° A= 50° h= 26° 1685 Toro RA= 8h07m57.634s Dec =+ 2°46'41.37 m= 16.0 UCAC2 32693651 RA= 8h07m57.649s Dec =+ 2°46'46.16 m= 15.1 2016-Apr-03/17h36.5m/ Dist = 10.0 AV= 5.3 / min PA= 53.5° A= 108° h= 24° 137170 1999 HF1 RA= 4h20m04.184s ...

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• http://www.gao.spb.ru/personal/neo/eng/approach/data/084.txt
• http://www.gao.spb.ru/english/as/j2014/presentations/kudryashova.pdf

RESEARCH OF EQUILIBRIUM STATE OF SPACE TETHER SSTEM CONSIDERING ATMOSPHERIC D RAG D , L A, Cq N P U The equilibrium equations of tether and subsatellite will be given with the consideration of tether mass, tether deformation and atmospheric drag. Space tether system equilibrium state will be obtained through solving the equilibrium equations of tether and subsatellite. ... Space tether system equilibrium state is obtained by calculating Tether and payload equilibrium state equations. ...

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• Spacecraft 'Aist-2D' can be 'seen' through the earth
• System of zero gravity state on the spacecraft 'Photon M4'
• Small spacecraft 'AIST' successfully undocked from Bion-M spacecraft and moved

... Data may be optionally rescaled. copyheader copy header keywords from one FITS file to another ( see also FTOOL cphead ). copywcs copy just the World Coordinate System keywords from the header of one FITS image to others. fcolappend append a constant column to a FITS table fitsparsename Prints components of the extended FITS file name. fitspha convert ASCII files to FITS PHA ( See also listhead supplied with FITSIO. modifyheader modifies FITS header. ...

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• Vertical Structure of the Secondary: Hydrostatic Model
• Astro::Cosmology - calculate cosmological distances, volumes, and times
• A Preliminary Investigation

Subject of Celestial Mechanics. ... Differential Absolute Coordinates Equations of the Problem. ... General Integral of Non-Perturbed Motion. ... General Equation of Non-Perturbed Orbit. ... Other Integration Methods of Non-Perturbed Motion Differential Equations; Bine Equation for Case of Non-Perturbed Motion. ... Ellipsical Motion, Kepler Equation. ... Motion Differential Equations in Absolute Coordinates. ... Equation of System of Bodies Motion in Barycentric Coordinates, in Relative Coordinates. ...

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• Internal Structure of Stars
• Stellar Astronomy
• Cosmology

... Here, $\lambda = {-180^{\circ}} \ldots {+180^{\circ}}$ is the longitude and $\varphi = {-90^{\circ}} \ldots {+90^{\circ}}$ the latitude in the original coordinate system. ... begin{equation*} \tan(l_{0} - l) = \frac{\cos(\delta) \sin(\alpha - \alpha_{0})}{\sin(\delta) \cos(\delta_{0}) - \cos(\delta) \sin(\delta_{0}) \cos(\alpha - \alpha_{0})} \end{equation*} . ... begin{equation*} \sin(b) = \sin(\delta) \sin(\delta_{0}) + \cos(\delta) \cos(\delta_{0}) \cos(\alpha - \alpha_{0}) \end{equation*} . ...

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• Conclusions and Future Directions
• difx:spacecraft [ATNF VLBI Wiki]
• WCSLIB: sph.h File Reference

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2011 February 23 . The Solar System from MESSENGER . ... Nearly such a view was taken recently from the MESSENGER spacecraft currently orbiting the Sun from the distance of Mercury . ... MESSENGER, which has flown by Mercury three times now, is on schedule to enter orbit around the Solar System's innermost planet next month. ... About APOD | ...

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• APOD: 2012 September 8 - Cosmic Rays at Voyager 1
• APOD: 2011 May 12 - Enceladus Looms
• APOD: 2007 April 10 - Saturn from Below

... 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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• Constructing and Reducing Sets of HST Observations Using Accurate Spacecraft
• Data Acquisition by Switching
• An Approach for Obtaining Polarization Information from COBE-DMR

... Michael Collins (BGEN, USAF, Ret.) NASA Astronaut (former) . ... SPECIAL HONORS: Presented the Presidential Medal for Freedom in 1969 and recipient of the NASA Exceptional Service Medal, the Air Force Command Pilot Astronaut Wings, and the Air Force Distinguished Flying Cross. ... He served as backup pilot for the Gemini VII mission. ... Collins served as command module pilot on Apollo 11, July 16-24, 1969--the first lunar landing mission. ... This is the only version available from NASA. ...

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• JSC Celebrates 40 Years
• Astronaut Bio: John Glenn, Jr. 1/99
• NASA - Astronaut Biographies

Atm 2 ospheric time constant with MASS and FADE 0 A. Tokovinin CTIO, Chile Adaptive Optics time constant 0 = 0.314 r0/V0 = 0.057 6/5 [ Cn2(h) V5/3(h) dh MASS time constant: 0, MASS, Numerical simulation 1. Set turbulent layer strength (seeing) & sp. response Definition (1 rad phase difference between wavefronts at t= 0) ] 3/5 = 0.175 (2 DESI ) 3/5 ; 2 DESI = < [ IA(1ms)/ IA(3ms) ] >2 0, MASS, This is an approximation! ... The MASS method is approximate! ...

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• http://site2010.sai.msu.ru/static/doc/VNosov_site2010.pdf

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Classes . Files . ClassљList . ... Weath . ... tcc::Weath Class Reference . include < weath.h > . ... computeRefCo (double &refCoA, double &refCoB, double wavelen, double elev, double lat) const . ... Definition at line 9 of file weath.h . ... double tcc::Weath::airTemp . ... double tcc::Weath::humid . ... double tcc::Weath::press . ... double tcc::Weath::primBackFrontTemp . ... double tcc::Weath::primFrontTemp . ... double tcc::Weath::secBackFrontTemp . ...

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• Untitled Document
• lsst.coordConv: coordConv::PVTCoord Class Reference
• Manastash Ridge Observatory Directions Page

... When two grd files are on the stack, each element in file A is modified by the corresponding element in file B. However, some operators only require one operand (see below). ... COSD 1 cos (A) (A in degrees). ... I0 1 Modified Bessel function of A (1st kind, order 0). ... INV 1 1 / A. J0 1 Bessel function of A (1st kind, order 0). J1 1 Bessel function of A (1st kind, order 1). ... K1 1 Modified Bessel function of A (2nd kind, order 1). ... Y0 1 Bessel function of A (2nd kind, order 0). ...

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• http://xray.sai.msu.ru/~ivan/gmt/man/splitxyz.html
• State of the problem
• Gravitational wave background from nearby galaxies

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Armagh Observatory, 13 October 2015 : Armagh Observatory reports that the next three weeks, from mid-October to the first week of November, will provide an interesting opportunity to observe a "dance" of the brightest planets Venus, Jupiter and Mars in the morning sky towards the East before dawn. ... The attached image shows the view of the morning sky towards the East at 06:00 (BST) on 28th October 2015. ...

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• Conference 98
• Observations with the Faulkes Telescopes
• Astrodynamics 101

... The main direction is discrete complex analysis, additional directions are rational classification of embeddings and classification of circular surfaces. I. Discrete complex analysis. ... One of our past results was application of discrete complex analysis to description of all polygons which can be tiled by squares (with Prasolov, 2010). ... The first planned result is convergence of discrete harmonic functions on general lattices to a harmonic function when the lattice becomes finer and finer. ...

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• Equations of Mathematical Physics
• ANR OTARIE project: transport optimization and applications
• Yu. Burman: Publications

June 19, 2005. ... Russian unmanned logistics spacecraft Progress M-53 launched from Baikonur on June 17, 2005, has docked with the International Space Station after two days of free flight in low Earth orbit. The spacecraft rendezvous with the ISS space station, its fly-around, stationkeeping and approach to the distance of about 120 meters were performed in automated mode, and the final approach was performed in the teleoperator control mode. ...

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• S.P. Korolev RSC Energia - News
• PRESS RELEASE - S.P. KOROLEV ROCKET & SPACE CORPORATION ENERGIA
• RSC "Energia" - History

Альтернативный форум . Scientific.ru Все форумы . ... Time (@) - 13.04.2007 09:15 . Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results . x203a; x203a; x203a; в ответ на: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич . ... Re: Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results Котофеич, 13.04.2007 13:37 . ...

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• Таблица основных физических величин

... Space flight . ... Space Hotel . ... The program of deployment of small orbital station (SOS) consisting of a family of spacecrafts and module-spacecrafts represents a consecutive realization of flight scenarios with consecutive building up of functions. ... Scenario 1 - the regular and revised spacecrafts of class "Soyuz" - TMSC and MNMSC (MNMSC-cargo, MNMSC-MR) are used, pls. see fig fig.8 . ... The terms of transition to this scenario are determined by terms of readiness of one or another module....

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