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41. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,199.pdf
... First Estimate of the Value of the Instrumental Polarization of the RadioAstron Space Radio Telescope Using the Results of an Early Scientific Program for Observing Active Galactic Nuclei I. N. Pashchenko, Yu. ... For this, it is necessary to construct a joint distribution of the observational data and unknown parameters, including both instrumental effects and the parameters of the observed source. ... Unknown parameters. ... Thus, the probability model used is based on the linear model of leakage....
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,199.pdf -- 293.8 Кб -- 09.06.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,199.pdf -- 293.8 Кб -- 09.06.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,199.pdf -- 293.8 Кб -- 09.06.2015
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42. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,182.pdf
... DOI: 10.1134/S0010952515030016 INTRODUCTION The output data of the Space Radio Telescope (SRT) are transmitted to the tracking station by two streams simultaneously via radio link in the Q band (15 GHz) using a special data format and QPSK (dou ble relative phase manipulation, DRPM) transmitter modulation. ... Each stream is divided into frames and contains radio astro nomical data obtained after clipping and 1 bit quanti zation (in sign of a signal). ... Bytes 28ґ30 are reserve in both streams. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,182.pdf -- 146.4 Кб -- 09.06.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,182.pdf -- 146.4 Кб -- 09.06.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,182.pdf -- 146.4 Кб -- 09.06.2015
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43. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,186.pdf
... SCHEDULING OF SRT SESSIONS From the point of view of the scientific program, the basic block of scheduling is the session of observations in the Very Long Baseline Interferometry (VLBI) mode. ... From the point of view of maximizing the time available for astronomical observations, it is desirable to carry out as seldom as possible control ses sions and to set programs for the greatest possible number of VLBI sessions in each flight mission. ... 53 No. 3 2015 data of the program. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,186.pdf -- 131.5 Кб -- 09.06.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,186.pdf -- 131.5 Кб -- 09.06.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,186.pdf -- 131.5 Кб -- 09.06.2015
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44. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,171.pdf
... Test Results of Radio Interferometer with Zero Base in the RadioAstron Project A. V. Biryukov Astro Space Center P.N. Lebedev Physical Institute, Russian Academy of ... e mail: biriukov@asc.rssi.ru Received November 18, 2014 Abstract--In preparation for the launch of a space telescope for ground tests within the groundґspace RadioAstron project, procedures and methods are developed in order to carry out tests under the zero base ... The test signal was fed on inputs of ZBI 0 arms. ... Fig....
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2015,53,171.pdf -- 957.0 Кб -- 09.06.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,171.pdf -- 957.0 Кб -- 09.06.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2015,53,171.pdf -- 957.0 Кб -- 09.06.2015
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45. http://www.asc.rssi.ru/RadioAstron/news/newsl/en/newsl_28_en.pdf
A R N 2 = = s a u 8 = = t d m = r i b M == = o o e a = ====== Space Astron r 28 y 2015 ====== =========== Center Newsletter =========== The RadioAstron AO-3 op en science program starts in July 2015 We are happy to report that RadioAstron operations are extended by Roscosmos until the end of 2016. ... Astro Space Center and its Russian and international partners have successfuly performed science experiments within approved AO-2 pro jects (see the list of pro jects in the RadioAstron Newsletter No. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/news/newsl/en/newsl_28_en.pdf -- 30.8 Кб -- 28.05.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/news/newsl/en/newsl_28_en.pdf -- 30.8 Кб -- 28.05.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/news/newsl/en/newsl_28_en.pdf -- 30.8 Кб -- 28.05.2015
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46. http://www.asc.rssi.ru/RadioAstron/publications/articles/ar_2014,58,783.pdf
... We consider various modes of operation of the on-board scientific equipment and their impact on accuracy of the anticipated experiment. We find that the accuracy of the test is limited by 10-2 for the hardware configuration routinely used in radio astronomical observations, which is a consequence of using ballistic data to remove the nonrelativistic Doppler frequency shift from the analyzed signal. ... 11 2014 GRAVITATIONAL REDSHIFT TEST 785 to rely only on the frequency one. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/ar_2014,58,783.pdf -- 715.6 Кб -- 13.05.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/ar_2014,58,783.pdf -- 715.6 Кб -- 13.05.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/ar_2014,58,783.pdf -- 715.6 Кб -- 13.05.2015
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47. http://www.asc.rssi.ru/RadioAstron/publications/articles/tmp/evn%202014_021.pdf
The Nuclear Structure of 3C 84 with Space VLBI (RadioAstron) Observations PoS(EVN 2014)021 Gabriele Giovannini1,2 , Monica Orienti2 , Tuomas Savolainen3,4 , Hiroshi Nagai5 , Marcello Giroletti2 , Kazuhiro Hada2,5 , Gabriele Bruni4 , Jeffrey Hodgson4 , Mareki Honma5 , Motoki Kino6 , Yuri Y. Kovalev7 , Thomas Krichbaum4 , Sang-Sung Lee6 , Andrei Lobanov4 , Bong Won Sohn6 , Kirill Sokolovsky7 , Peter Voitsik7 , J. Anton Zensus4 . ... 2014, Tavecchio and Ghisellini 2014). PoS(EVN 2014)021 2. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/tmp/evn%202014_021.pdf -- 435.6 Кб -- 13.05.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/tmp/evn%202014_021.pdf -- 435.6 Кб -- 13.05.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/tmp/evn%202014_021.pdf -- 435.6 Кб -- 13.05.2015
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48. http://www.asc.rssi.ru/RadioAstron/publications/articles/tmp/evn%202014_065.pdf
Preliminary results of giant pulse investigations from Crab pulsar with Radioastron. ... RAS, Profsoyuznaya 84/32, 117997 Moscow, Russia E-mail: vsoglasn@asc.rssi.ru Giant pulses from Crab pulsar were observed together with Radioastron space radiotelescope, Global EVN radio telescopes and Kvazar-KVO VLBI stations to study the scattering effects in the ISM. ... Observations. ... A program of observations of 2 Preliminary results of giant pulse investigations from Crab pulsar with Radioastron. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/tmp/evn%202014_065.pdf -- 1311.6 Кб -- 12.05.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/tmp/evn%202014_065.pdf -- 1311.6 Кб -- 12.05.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/tmp/evn%202014_065.pdf -- 1311.6 Кб -- 12.05.2015
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49. http://www.asc.rssi.ru/RadioAstron/ao-3/radioastron_ao3.pdf
Space VLBI Mission "RadioAstron" Announcement of Opportunity -- 3 for the period 1 July 2015 ґ 30 June 2016 Proposals Due: 26 January 2015, 23:59 UT CONTENTS 1 Contents 1 Summary 2 RadioAstron Mission Overview 2. ... In AO-3, as in AO-2, proposals are invited for the RadioAstron Key Science Program and General Observing Time experiments, to be submitted by 26 January 2015 to the Mission, and to ground radio telescopes required for the specific observations by their respective proposal deadlines. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/ao-3/radioastron_ao3.pdf -- 201.4 Кб -- 14.01.2015
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/radioastron_ao3.pdf -- 201.4 Кб -- 14.01.2015
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/radioastron_ao3.pdf -- 201.4 Кб -- 14.01.2015
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50. RadioAstron Announcement of Opportunity - 1, english version
... The scientific program of RadioAstron consists of three major parts: the Early Science Program (ESP), Key Science Program (KSP), and General Observing Time (GOT) projects. The Early Science Program, which finished in June 2013, explored the main scientific capabilities of RadioAstron observations and paved the way for the subsequent KSP and GOT programs. ... The RadioAstron Announcement of Opportunity - 3; . The RadioAstron User's Handbook ; . ... RadioAstron observations status summary . ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/ao-3/ao3.html -- 8.0 Кб -- 26.12.2014
[ Сохраненная копия ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/ao3.html -- 8.0 Кб -- 26.12.2014
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[ Сохраненная копия ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/ao3.html -- 8.0 Кб -- 26.12.2014
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51. http://www.asc.rssi.ru/RadioAstron/software/fakerat/ver_16/fakerad_guide.pdf
... Fakesat menu sub-menu names are shown in b old underlined text. ... 6 6 6 7 7 8 4 Fakesat menu: Tutorial 5 Fak 5.1 5.2 5.3 5.4 esat men Output Output Output Output u: fr fr fr fr RADIOASTRON Hardcopy Exam om the options:Sub-Menu . ... om the extra plots:Sub-Menu . ... These examples are the default output produced by the fakesat program when both the RADIASTRON pushbutton of the spacecraft: sub-menu and the ps: plot+menu pushbutton of the output options: sub-menu have been selected. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/software/fakerat/ver_16/fakerad_guide.pdf -- 2524.7 Кб -- 26.12.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/software/fakerat/ver_16/fakerad_guide.pdf -- 2524.7 Кб -- 26.12.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/software/fakerat/ver_16/fakerad_guide.pdf -- 2524.7 Кб -- 26.12.2014
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52. http://www.asc.rssi.ru/RadioAstron/ao-3/radioastron_ao3_proposal_template.pdf
RadioAstron AO-3 prop osal Submission dead line: 26 January 2015, 23:59 UT. ... Team contact name and e-mail address: Ivan Petrov (e-mail: Ivan.Petrov@gmail.com ) Total observing time request: 60 hrs Should be < 100 hours if GOT. ... Research Goals -- describing the main goals of the observations proposed and their impact on the broader field of astrophysics. ... AO-3 Observations -- describing specific observations and time request for the AO-3. 5 e o r . ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/ao-3/radioastron_ao3_proposal_template.pdf -- 40.8 Кб -- 26.12.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/radioastron_ao3_proposal_template.pdf -- 40.8 Кб -- 26.12.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/ao-3/radioastron_ao3_proposal_template.pdf -- 40.8 Кб -- 26.12.2014
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53. http://www.asc.rssi.ru/RadioAstron/publications/articles/ajl_2014,794,14.pdf
... Printed in the U.S.A. DISCOVERY OF SUBSTRUCTURE IN THE SCATTER-BROADENED IMAGE OF SGR A* Physics Department, Broida Hall, University of California, Santa Barbara, CA 93117, USA; cgwinn@physics.ucsb.edu Astro Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya Str. ... Observations of Scattering of Sgr A Very long baseline interferometry (VLBI) observations of Sgr A reveal a smooth, elliptical-Gaussian image indicative of strong scattering (Krichbaum et al. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/ajl_2014,794,14.pdf -- 383.8 Кб -- 16.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/ajl_2014,794,14.pdf -- 383.8 Кб -- 16.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/ajl_2014,794,14.pdf -- 383.8 Кб -- 16.10.2014
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54. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,403.pdf
... Since it is obviously impossible to tune a feed at such a tempera 324 ? 8 MHz 1664 ? 60 MHz 4832 ? 60 MHz 120° ґ18 dB Elliptic (simultaneous reception for two orthogonal polarizations) 0.9 Ellipticity Efficiency 98% BP axial symmetry <0.1 dB VSWR value at LNA input <1.2 Decoupling between polarization channels of one frequency 23 dB band Decoupling between frequency bands 15 dB 403 404 0° P=3 =4 TURYGIN 90° =5 180° =6 270° P=1 P=2 Fig. ... Fig. ... Decoupling of a 1664 MHz feed in the 18 cm range. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,403.pdf -- 1032.5 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,403.pdf -- 1032.5 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,403.pdf -- 1032.5 Кб -- 07.10.2014
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55. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,393.pdf
... Nikolaeva, N. A. Nizhel'skiib, G. V. Zhekanisb, and P. G. Tsybulevb b Astro Space Center, Lebedev Physical Institute, Moscow, 119991 Russia e mail: ykovalev@asc.rssi.ru Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Russia Received December 16, 2013 a Abstract--The results of a large number of the antenna radiometric measurements at bands of 92, 18, 6.2, 1.35, and 1.7ґ1.2 cm are presented by the data of the standard telemetry system of the Spektr R spacecraft. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,393.pdf -- 383.0 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,393.pdf -- 383.0 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,393.pdf -- 383.0 Кб -- 07.10.2014
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56. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,391.pdf
... Numerical Modeling of RadioAstron SRT Temperature Deformations M. Yu. Arkhipov, I. S. Vinogradov, S. B. Novikov, and S. D. Fedorchuk Astro Space Center, Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia e mail: rusengineer@mail.ru Received December 16, 2013 Abstract--The results of modeling the thermal deformations of a space radio telescope's reflecting surface are presented in the paper. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,391.pdf -- 437.2 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,391.pdf -- 437.2 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,391.pdf -- 437.2 Кб -- 07.10.2014
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57. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,386.pdf
... SUPPORT SYSTEM FOR THERMAL REGIME OF CONTAINER WITH SCIENTIFIC INSTRUMENTS The STRM of the container with scientific instru ments (CSI) provides for maintaining the following temperature conditions of functioning for the units of scientific instruments mounted in a hermetic con tainer: the temperature of gas at its entrance to instru ments should range from 5ґ35°C. The scheme of SRT STRM and composition of STRM aggregates are pre sented in Fig. ... Gas circulation in the container proceeds like this...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,386.pdf -- 316.6 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,386.pdf -- 316.6 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,386.pdf -- 316.6 Кб -- 07.10.2014
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58. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,382.pdf
... System of Works on Numerical Modeling of the Dynamics of the Structure of the Space Radiotelescope in the RadioAstron Project M. Yu. ... In particu lar, it is impossible to perform experimental modeling of a factor such as the operation of an antenna orientation pointing mechanism of a radio complex and its effect on the distortion of the SRT reflecting surface. ... Figure 7 presents the results of modeling the deviations of the platform of sensors while pointing the antenna of the radio complex. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,382.pdf -- 878.2 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,382.pdf -- 878.2 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,382.pdf -- 878.2 Кб -- 07.10.2014
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59. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,379.pdf
... The following factors that affect the final accuracy of the reflecting surface in ground conditions were considered to be the most important: the accuracy of manufacturing of the central mirror and lobes , the accuracy of their installation on the spacer , the accu racy of systems of weight unloading (the weight unloading of lobes during their manufacturing and assembly of the reflector as a whole), the ... Stan dard deviations of lobe surfaces were 0.13ґ0.21 mm. ...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,379.pdf -- 355.6 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,379.pdf -- 355.6 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,379.pdf -- 355.6 Кб -- 07.10.2014
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60. http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,373.pdf
... An algorithm for calculating the angles of the narrow beam antenna drive, which takes into account technological restrictions on the capability of its spatial orientation, is presented. ... Restrictions on Spacecraft Service Systems 3.1. ... Adjustment Mode for the Narrow Beam Antenna of the Spacecraft When adjusting the NBA, i.e., searching for the axis of the radiation pattern, OCC forms a program of turns of the NBA drive based on the and angles rel ative to the calculated direction toward the...
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Ссылки http://www.asc.rssi.ru/RadioAstron/publications/articles/cr_2014,52,373.pdf -- 295.3 Кб -- 07.10.2014
[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,373.pdf -- 295.3 Кб -- 07.10.2014
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[ Текст ] Ссылки http://www.asc.rssi.ru/radioastron/publications/articles/cr_2014,52,373.pdf -- 295.3 Кб -- 07.10.2014
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