. Welcome to X-Ray WWW Server . at Sternberg Astronomical Institute . This page was designed by Sergey Nazin . Send questions and comments to leng@sai.msu.su

... Clayton C. Anderson . ... EDUCATION: Graduated from Ashland-Greenwood High School, Ashland, Nebraska, 1977; graduated cum laude with a Bachelor of Science degree in Physics from Hastings College, Nebraska, in 1981; and received a Master of Science degree in Aerospace Engineering from Iowa State University in 1983. ... Anderson also served as a space station Capsule Communicator (CAPCOM) and as the Astronaut Office Crew Representative for the space station electrical power system. ... JANUARY 2013 ...

... For many ATMs, having a good ray trace program on hand is pretty valuable. ... http://www.willbell.com . ... It is a slick Windows package with great graphics, but my most recent machine (Win95 OSR2) now encounters many error messages. ... OSLO LT : This is the freeware Windows version of OSLO - it is limited to 12 surfaces, but is otherwise amazing. ... KDP : This is another powerful, freeware Windows raytrace package. ... ZEMAX : This is yet another powerful, Windows raytrace package. ...

... Main . ... The RadioAstron is an international space VLBI project led by the Astro Space Center of Lebedev Physical Institute in Moscow, Russia. ... List of organizations which were taken part in developing of the project and now support the RadioAstron mission is presented here . The RadioAstron Newsletter # 29 , July 18, 2015. RadioAstron Announcement of Opportunity - 4 for observations from July 2016 to June 2017 inclusive. ... 2.7, December 17, 2015 : English version. ... Main ASC . ...

The inspection of Spectrum X-Gamma vibro-thermal model at Lavochkin Association by SXG scientists and designers, June,8., 1999. ... Assembled vibro-thermal model of Spectrum X-Gamma spacecraft and scientific payload is ready for final part of vibrational tests. ... Complex acceptance tests of flight models of Russian scientific experiments at OKB Aalam, Bishkek. Preparation of scientific experiments for acceptance tests (KFRD, EUVITA, SMM, SPIN) . ...

... Antarctic Research (Vernadsky Station) . Ephemeris Astronomy . Lithosphere-low atmosp1here- ionosphere processes . Plasma processes in ionosphere and magnetosphere . The charged particles acceleration in the cosmic magnetic fields and their nonthermal radiation . ... Theory of plasma instabilities and turbulence; applications to wave processes in the ionospheric, magnetospheric and space plasmas . Large-scale wave processes in space plasma.Formation of nonlinear wave structures . ...

... 8, ``Celestial Mechanics'', 2002 Parameterization of the Solar Radiation Pressure model for GPS satellites I. S. Gayazov Institute of Applied Astronomy, St. Petersburg, Russia The treatment of solar radiation pressure (SRP) effect until now is the main problem in precise modeling of GPS satellite orbits. ... In practice, however, all seven parameters of the empirical model cannot be confidently determined from phase observations. ... Bar­Sever Y. E. A new model for GPS yaw attitude. ...

... Unlike the previous digital-only Messages, Arecibo-1974 and Evpatoria-1999, the TAM has complex, three-section structure with different forms of information. Section 1 represents coherent sounding radio signal with slow Doppler wavelength tuning to imitate transmission from Sun's center. ... Section 2 is an analog information and represents musical melodies, performed on the Theremin. ... There were seven musical compositions in the 1st Theremin Concert for Aliens. ...

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... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...

... Contacts . 2011: . ... In collaboration with the UFU . ... It is shown that the application of modern kinematic components (the ball screws, CV joints, hybrid gearboxes), stepper and servo-controlled drives and encoders improves the accuracy of the panel positioning by the radius, angle, azimuth by 6, 4, 2 times, respectively, to reduce the backlash by 2-4 times, to shorten the panel setting time by 8-10 times, to achieve the repeatability of panel setting within 20 microns. ... Archive . ...

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