... Ballistics, navigation and flight control of the spacecraft, going to the L2 point of Sun-Earth system. ... and calculation algorithms have been developed: - an algorithm, building nominal trajectories for one impulse flights to the L2 point of Sun- Earth system, including a Moon swingby maneuver or not. - an algorithm, calculating corrections of spacecraft trajectory needed for the flight from Earth to halo orbit and for stationkeeping of the spacecraft moving in halo ...

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The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

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... New technique measures mass of exoplanets . ... Now, scientists at the Massachusetts Institute of Technology (MIT) have developed a new technique for determining the mass of exoplanets using only their transmission spectra dips in light as a planet passes in front of its star. ... To determine the mass of an exoplanet using transmission spectroscopy, de Wit relied on the effect that a planet s mass has on its atmosphere, as transmission spectra give information on a planet s atmospheric properties. ...

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• Cosmic giants shed new light on dark matter | Astronomy.com
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... Schools . ... Dean?s Office . Departments . ... School of Physics . ... Low-Temperature Physics Department . ... Web site: http://www-physics.univer.kharkov.ua/ua/chairs/k_phlt.html . ... Activity of the Chair of Low-Temperature Рhysics was supported by grants of SCST of Ukraine, Ministry of Education and Science, Soros Foundation, Department of Science and Education of NATO. ... The chair and PSRL of low-temperature physics take part in the solution of the main problem of physics of solid ? ...

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... Dnepr Cluster Mission 2013 19 June 2014. ... The SC actual injection accuracy was assessed by comparison of the nominal design orbit, with the account for disturbances at separation, and the actual orbit determined on the basis of: . ... With reference to the above data, one can see that deviations of the THEOS osculation orbit parameters at the time of SC separation during Dnepr launch on October 1, 2008 did not exceed the prediction the THEOS SC was launched with high accuracy. ... Mission profile...

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... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...

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... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

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... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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Elsevier Ed itorial System(tm) for JASR 2006 Manuscript Draft Manuscript Number: Title: Determination of K, Ar, Cl, S, Si and Al flare abundances from RESIK soft X-ray spectra Article Type: Contributed Paper Section/Category: E2.4 - Solar Magnetic Field and Activities Keywords: solar physics; X-ray flares ; spectroscopy; abundances Corresponding Author: Dr. J. Sylwester , Corresponding Author's Institution: Space Research Center First Author: J ... All flares were observed early Fig. ...

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The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

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... About StarCalc . News . ... StarCalc Home Page . Short description of changes, implemented in the StarCalc, . ... CHANGES OF PROGRAM CORE FUNCTIONS. CHANGES OF PROGRAM INTERFACE. CHANGES OF OBJECT INTERFACES. ... New "Output console". ... Information, which is generated by StarCalc, is added into the console - for example, ephemeris tables. ... In the StarCalc state file can be saved autorotation parameters, object selection, object locking mode, auto start and stop autorotation mode. ...

92. Images of Supernova 1998bu in M96

93. VaST homepage