... Viking Images . ... Each spacecraft consisted of an orbiter and a lander. ... The first month of orbit was devoted to imaging the surface to find appropriate landing sites for the Viking Landers. On July 20, 1976 Viking Lander 1 separated from the Orbiter and touched down at Chryse Planitia. ... The Viking Landers transmitted images of the surface, took surface samples and analyzed them for composition and signs of life, studied atmospheric composition and meteorology, and deployed seismometers. ...

... 6.08.2001 . ... Credit: STS-103 , STScI , ESA , NASA Explanation: The Hubble Space Telescope (HST) is the largest orbiting public optical telescope in history. ... A larger Next Generation Space Telescope (NGST) may be launched as early as 2007. ... August 2001 . ... 2001 2002 . ... 2007 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: Hubble space telescope - telescope . Publications with words: Hubble space telescope - telescope . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 August 6 . The Orbiting Hubble Space Telscope . Credit: STS-103 , STScI , ESA , NASA . Explanation: The Hubble Space Telescope (HST) is the largest orbiting public optical telescope in history. ... A larger Next Generation Space Telescope (NGST) may be launched as early as 2007. ... About APOD | ... NASA Technical Rep.: ...

... Purpose: To measure changes to the properties of the data when the spectra are moved over a range of cross-dispersion and dispersion positions. Description: This program will obtain COS FUV spectra of external targets at a range of cross-dispersion and dispersion positions in order to evaluate the optical performance of the spectrograph at different lifetime positions. ... Link to Cycle 17 Science # Use the GO + GTO Phase 1 exposure listing and derived statistics # posted on WWW. ...

... Click on an object in the solar system or choose from the list at left to learn more . The Arecibo Observatory planetary radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth objects. ... The Solar System Studies group is a department of the Arecibo Observatory, which is an NSF facility operated under cooperative agreement by SRI International, Universities Space Research Association (USRA), and la Universidad Metropolitana (UMET). ...

... Orbiter . Payload of the Orbiter . ... the instruments . ... ORBITER . Index . Instrument . Mass (kg) . ARGUS . ... visible and IR mapping spectrometer . ... planetary IR Fourier spectrometer . ... mapping visible and thermal radiometer . ... mapping high-resolut. spectrophotometer . ... multichannel optical s spectrometer . ... quadrupole mass-spectrometer . ... fast omnidir. energy-mass ion analyzer . ... wave complex . ... platform for ARGUS instruments . ... MASS-MEM . ...

The orbital period of a satellite increases as its mean distance from Earth grows. The space shuttle in a low altitude circular orbit, just above the atmosphere, completes one circuit in about 90 minutes. ... If you have a suitable calculator, you can easily chek the value of T for R=6.6] A satellite orbiting above the equator at that distance keeps its position above the same spot on the ground; hence this is known as the synchronous orbit, from the Greek syn--same, chronos--time. ...

... Search . ... Astrophysics Group . Research . ... Research and Instrumentation . ... While this seems an extraordinary endeavour, in light of what we have learnt about Solar System planets, only a handful of key ingredients are required to start characterising an exoplanet. ... The NGTS project is a partnership between the University of Cambridge, Queen?s University Belfast, University of Warwick, University of Leicester, Observatoire de Geneve, DLR (Berlin) and Universidad Catolica de Chile. ...

sas-uploads-admin@xmm.vilspa.esa.es sas-uploads-admin@xmm.vilspa.esa.es . ... Previous message: [sas-uploads] SAS manifest releasetrack [xmmsas_20010607_1900] uploaded . ... Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] . Package orbit-2.7.tgz (4044 kB) Uploaded by Brendan Perry < bhp@star.le.ac.uk > The most recent entry in ChangeLog is: orbit/ChangeLog ChangeLog for orbit =============================== Version 2.7 - 01-06-06 ------------- - Fixed bug in layout file. ...

The efficiency of interaction of radiation with a particle and hence its optical properties depend on the particle chemical composition, size, shape, structure, etc. ... Particle size expressed in units of the wavelength of incident radiation, together with chemical composition, most strongly affects the optical properties of a scatterer. ... There are many methods to solve the light-scattering problem for a homogeneous spheroid (our survey of the light-scattering methods see here ). ...

Next: The ``Reflection'' Effect Up: Ejectors in Massive Binary Previous: The Radiopulsar PSRB1259-63 - a . The radiopulsar PSRB1259-63 in a massive binary has an extremely high eccentricity (Johnston et al. ... We have assumed that explosion occurs at a random moment on the orbit and all the mass thrown off by a star instantly leaves the system because the characteristic velocity of matter from the exploded star is much higher than the orbital velocity. ...

... Mars . ... News . ... NASA's newest Mars mission spacecraft enters orbit around the Red Planet . ... On September 21, 2014, NASA's MAVEN spacecraft entered orbit around Mars, completing an interplanetary journey of 10 months and 442 million miles (711 million kilometers). ... NASA s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft successfully entered Mars orbit at 10:24 p.m. EDT Sunday, Septempter 21, where it now will prepare to study the Red Planet s upper atmosphere as never done before...

... Direct data transmission rate (Mbps) . ... the density of electron fluexs with energies in four bands from 0.04 MeV to 1.7 MeV; . ... sensor (TV, IR) data and heliogeophisical information (HGI) transmission to data receiving and processing centers at a rate of up to 2.56 Mbps; . ... 1.76 GHz - TV- and heliogeophysical information and DCLI's data transmission to data receiving and processing centers; . 7.5 GHz - TV- and heliogeophisical data transmission to data receiving and processing centers; . ...

... They were determined as a result of orbit improving on the base of all kinds of optical observations available in the catalog of observations of the Minor Planet Center on March 16, 2014 (radar observations have not been used at this stage). ... As the MPC orbits do not all were improved simultaneously with EMP orbits, only 383866 sets of elements were used for data comparison (for selected sets of elements process of improvement had started with the use of the same observations). ...

... Science User Portal . ... For the first time, astronomers have been able to directly follow the motion of an exoplanet as it moves from one side of its host star to the other. ... Only 12 million years old, or less than three-thousandths of the age of the Sun, Beta Pictoris is 75% more massive than our parent star. ... This research was presented in a paper to appear this week in Science Express (тАЬA Giant Planet Imaged in the disk of the Young Star Beta Pictoris,тАЭ by A.-M. Lagrange et al.) ...

... In spite of the good potential possibilities, some of the station "Dnepr" design characteristics did not allow us to apply the usual special IS radar measurement methods. ... Thus for IS signal measurements at the "Dnepr" station, we have developed special methods for recording and processing IS signals in order to determine plasma ionospheric parameters. ... Equations (4-5) from the basis for data post processing to obtain ionosphere parameters. ...

Free Space Optical Communication Systems . ... Airplane - geostationary satellite laser communication. ... Air ( space) optical communication systems ( AO ) . ... The Optical ground station was constructed at Teide observatory, Tenerife, Canary Islands for laser communication experiments from ground to geostationary (GEO) satellites. ... Laser communication experiments between ARTEMIS satellite and optical ground station (OGS) ESA at Canary Islands are performing also. ... CW laser test experiments . ...

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... Сегодня: 10 апреля 2016 г. В 15:43 по московскому времени американский космический зонд Mars Reconnaissance Orbiter стартовал с космодрома на мысе Канаверал (штат Флорида) с помощью ракеты-носителя Atlas-5. ... Изначально запуск "марсианского разведчика" к Красной планете был запланирован на минувшую среду, но он дважды переносился в связи с неполадками ракеты-носителя. ... Американский космический зонд Mars Reconnaissance Orbiter отправился к Красной планете . ...