... 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...

... Project Team" CMBA experiments, 1968-1998 .. Project parameters errors: RATAN-600 versus other best projects .. ... Related: * Experiment "Cold" * "Dark Ages" of the Universe * Spectral-Spatial Fluctuations (SSF) of CMBR . ... The most intensive one - "Experiment Cold" (Parijskij, Korolkov,1986). For the list of "Project Team" CMBA experiments, 1968-1998, look here . ... RATAN-600 . ... Cosmological Gene" project belongs to this class of CMBA experiments. ... COSMOLOGICAL GENE . ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... The models provided are: . abs - absorption of x-rays by neutral gas with solar abundances. parameter 1 = . ... parameter 2 = . ... normalization - logarithmic value of the flux density at 1 keV in units of keV cm -2 s -1 keV -1 . ... normalization - logarithmic value of the normalization of the gaussian in units of keV cm -2 s -1 . ... absorption ( params )* model ( params ) . ... A single value for the normalization (i.e., fixed normalization) will force the program to use that value. ...

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

... NASA Oral History Project: NACA, . ... At the Langley, Ames, and Lewis Research Centers, as well as the High Speed Flight Station (Edwards AFB, CA), NACA members transitioned quietly to the new organization, NASA. ... This NASA Oral History Project captures the experiences of some of the individuals representing the four NACA facilities and its headquarters, giving the project a reflection of contributions and projects from each of the centers. ... Langley Aeronautical Laboratory, Hampton, Virginia ...

... 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. ...

Algebraic geometry studies geometric loci defined by polynomial equations, for example the complex plane curve f(x,y)=0. ... Some experience in geometry and topology (projective spaces, metric and topological spaces, simplicial complexes and homology groups) is desirable but not essential. Projective spaces. ... Plane projective algebraic curves: point multiplicities, intersection numbers, Bezout's theorem. Plane projective algebraic curves: singularities, duality, Pluecker formulas. ...

AAL Guestbook . Please Sign Our Guestbook . Guestbook Entries: 147 . Add Entry | ... Previous Page | Next Page . ... Signed on at . Andrew Davies . Barnstaple, North Devon, England, . ... Starfriends of North Devon . Nice web page, keep it up. ... Andrew . ... Doc . ... Stumbled in from Sky and Telescope's page. ... Best wishes and Clear Skies, Doc . ... Mon amie et moi sommes heureux de trouver un club d'astronomie au GDL organisant des sИances d'observations publiques. ...