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• Parameters of the Moon-perturbed orbit

Target Acquisition Reference Information . ... In almost all cases where an onboard acquisition will not work (because the object is in a crowded field, or is variable, or is a moving target), it is sufficient to use an early acquisition to get a WFPC2 or FOC image a few weeks in advance of the GHRS observation. ... Explicit BRIGHT and FAINT limits may be specified if you desire, although there is an increased risk of a failed acquisition unless you are confident of those fluxes. ... MAPs . ...

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• Mode = ACQConfig = STIS/CCD
• Mode = ACQ/SEARCHConfig = COS/NUV
• COS Instrument Handbook

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. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

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Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

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• East Siberian Center for the Earth's Ionosphere Research. Capabilities and
• East Siberian Center for the Earth's Ionosphere Research. Modelling, secondary
• East Siberian Center for the Earth's Ionosphere Research. Specific character

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• IDL programs
• IMCCE-SAI: Natural Satellites Data Center. Observations

The radial velocity corrected to the galactic center vgsr (cz in km/s) is obtained by a correction of the motion of the Sun with respect to the local standard of rest (LSR) and a correction of the LSR motion with respect to the galactic center. The resulting correction is: vgsr = v + 232 sin(al2) cos(ab2) + 9 cos(al2) cos(ab2) + 7 sin (ab2) Where al2 and ab2 are the Galactic coordinates (longitude and latitude) and v is the radial (cz) velocity in km/s given as parameter v . ...

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• Documentation: LEDA: parameter:
• HyperLEDA documentation: parameter: brief
• HyperLEDA documentation: parameter: vdis

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

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• In the Center of Spiral Galaxy M61
• Galactic Center Flicker Indicates Black Hole
• Journey to the Center of the Galaxy

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

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• Moscow Center for Continuous Mathematical Education - Independent University of
• Center for Linguistic Documentation

... Guider functions . ... Guide Sensor Performance . ... Guide Sensor Sky Coverage/ Star Availability . Guide Star Selection Criteria . ... Guide fiber organization and reach at plug plate . ... Plug plate holes for guide stars are identical to those for science FO . ... FOV for each of 9 guide stars is 7.4 arcsec dia. (0.45 mm FO, Sumitomo IGN-05/10) . ... Selected guide stars must have no neighbor stars within TBD (5 arcsec) radius that have a brightness within TBD (5 mag.) of guide stars . ...

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• Echelle for Beginners
• Astrophysical Research Consortium - Apache Point Observatory
• Telescope Parameters

... subroutine CAL_getEncircledEnergy(E, theta, Radius) . E: energy in eV for which the enclosed energy value will be computed . theta: field angle in arcsec which defines the position of the PSF barycenter and the center of the circular extraction window. Radius: radius specification in mm of the window in which the enclosed energy has to be calculated. It is assumed that the extraction window is circular and perfectly centered on the PSF barycenter. ...

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• Procedure
• Index

Results of analysis . ... IAA EOP Service . ... EOP series are regularly submitted to the IERS, and also are available at the IAA EOP Service page. EPN coordinate time series . EUREF Permanent GPS Network (EPN) coordinate time series is computed from analysis of available EUREF weekly solutions. ... Second solution is based on independent combination of individual EPN Analysis Centers' solutions . ... USNO GPS Timing Operations . ... GPS Time Series . ... EPN : European Permanent GPS Network . ...

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• IAA EOP Service
• Keywords_133
• IAA VLBI Analysis Center

Stellarium 0.12.3 . ... StelGeometryBuilder Class Reference . ... buildCircle ( StelVertexBuffer < VertexP2 > *vertexBuffer, const float x, const float y, const float radius, const int segments=128) . ... buildCylinder ( StelVertexBuffer < VertexP3T2 > *const vertexBuffer, const float radius, const float height, const int slices, const bool orientInside=false) . ... Build a fisheye-textured sphere. ... Build a flat texture mapped ring with 3D coordinates (for example for planet's rings) More.. ...

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• Stellarium: TelescopeClientDirectLx200 Class Reference
• Stellarium: TelescopeClientDirectNexStar Class Reference

... Triggers the use of multiple phase center processing on the DiFX correlator at least at the VLBA. In practice, this puts the list of phase centers in the .v2d file used in setting up correlation. ... The argument of CENTERS must correspond to a list of names in the phase center groups listed after a PCENTERS command. For now, there is no clear way to make the phase center list scan dependent, so specify the same name for each scan on the same source. ... Usage: Keeps value of previous scan. ...

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• deproject
• casacore: casa::UnaryParam< T > Class Template Reference
• The ``HIPASS Bright Galaxy Catalog'' (version-4)

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

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... A Web browser with Java support and an account to establish a secure Internet HTTP connection to the Goddard Space Flight Center (GSFC), is everything needed in order to use the new Control Center System (CCS). Then full access to the telemetry of the Hubble Space Telescope (HST) is given (Figure 2). A public version of CCS is also available. ... Rifkin, A. 1997, Reengineering the Hubble Space Telescope Control Center System, Institute of Electrical and Electronics Engineers Inc. ...

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• CENTERFIT: A Centering Algorithm Library for IRAF
• ASC Coordinate Transformation -- The Pixlib Library, II
• In-Orbit Calibration of the Distortion of the SOHO/LASCO-C2 Coronagraph

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• U of O High Energy Physics Seminars
• University of Oregon Center for High Energy Physics - Group Talks, Papers, and
• University of Oregon Center for High Energy Physics - Recent Experimental Talks

... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

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• Concerning Steady State Corotation of the Io Plasma Torus

... We assume that an instantaneous starburst occured in the region of the Galactic center, with half of the stars (in number) being formed in binaries. The total mass of the stars formed during the starburst was taken to be , as indicated by the Tamblyn & Rieke (1993) analysis. ... In fact, the number of stars in IRS 16 estimated by Tamblyn & Rieke (1993) is uncertain within a factor of 2, but this is actually of no importance as long as we only use relative numbers of different X-ray source species. ...

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• Population synthesis of X-ray sources at the Galactic center
• Initial binary parameters
• Results

V.G. Petukhov . LOW-THRUST TRAJECTORY OPTIMIZATION. ... The optimal control problem is reduced into boundary value problem by means of maximum principle. ... planetary solar and nuclear electric propulsion mission optimization (both rendezvous and flyby) for variable specific impulse problem; . low-thrust trajectory optimization (variable specific impulse problem) within the frame of restricted problem of three bodies, including transfers to the libration points and mission to the Moon; . ...

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• The magnetic conjugation conception
• IKI SSC INTMINS APRIL98
• IKI SSC, INTMINS APRIL99