... The author attempts to approach the problem from the positions of systems analysis with account for the ideological grounds and history of space activities in Russia and abroad, comparing its current interpretation with the initial goals posed by leading theoreticians and practitioners who stood at the cradle of the space exploration era. ... The space systems recognized in Russia as priority projects are largely developed with violations of the systems approach principles. ...

... 23 Algorithm fo r evalua tion of two burn maneuv ers using linearity Input information: ( t t E1 , rEI , v t1L , t E2 2L ( ) EI )T )T ­ ­ ­ ­ the time and the state vector of initial orbit for this time ; interval of possible thrusts for transition from initial orbit to the transfer on e; the time and the state vector of the target orbit for this time ; ... We cal culate the state vector for the initial orbit for the time t1a and the target one ­ for the time t2 a . ...

... Date : 00/09/2008 . Lieu : l'agarde d'apt alt:1100m . MatГїriel de prise de vue : Canon eos 350D object:18mm F4 . Commentaires : Le triangle en entier traversГї par la lactГїe,juste au dessus de la coupole de l'observatoire poses:3X10mm . ... Commentaires : La mГ?me avec un traitement plus lГїger.PrГїtraitement sous deepskystacker +finition photoshop ГїlГЕments . ... MatГїriel de prise de vue : canon eos 350D object 50mm 2 images,l'une a f1/8 l'autre a f2/5,temp pose:2X10mm . ...

. ПО АЛФАВИТУ . ПО ДАТЕ ОБНОВЛЕНИЯ

Охотники за потенциально опасными астероидами получили гранты на исследования . ... Получатели грантов Gene Shoemaker Near Earth Object Grants прошлых лет открыли много ранее неизвестных астероидов, в том числе астероид 2004 GA1, который является первым потенциально опасным астероидом размером более 1 км в поперечнике, открытый астрономом-любителем (им был Джон Броутон (John Broughton)). Кстати, получить грант имени Джина Шумейкера может и профессиональный астроном и астроном-любитель. ...

... Maps of six sources (0420+022, 0420-014, 1308+326, 1345+125, 1803+784, and DA 193) obtained with milliarcsecond resolution are presented and discussed, together with their broadband (1­22 GHz) spectra obtained on the RATAN­600 radio telescope at epochs close to those of the VLBI observations. ... The image (Fig. 5) shows that the source structure at 18 cm is compact, consisting of a VLBI core and two jet components, with the outer component lying 5 mas (30 pc) to the northwest of the core ( = 54 ). ...

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