... The force F of gravity between two objects of mass m and M, whose centres are a distance r apart, is given by Newton’s famous equation: . ... where the radius of the Earth is 6,400 km, and the orbit is 1000 km above the Earth’s surface. ... Centrifugal Force . ... For a satellite to stay in orbit, this centrifugal force must balance gravity. ... So, as an object with a given angular momentum moves inwards, gravity increases, but the centrifugal force increases faster. ... Energy Considerations . ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

Instrument . ... Scanning TV-sensor with on-board data recording system for global coverage mode . ... recording, direct transmission . ... IR-radiometer for global coverage and direct data transmission modes . ... The scientific instrument package onboard the Meteor-3 spacecraft provides for regular instant acquisition of images of cloudiness and Earth surface in visible and infra-red bands, data on air temperature and humidity, sea surface temperature and clouds temperature. ...

Four NASA spacecraft and spacecraft from Japan and Europe are planned to be in operation at Mars in early 2004. In addition to the three tracking stations of NASA's Deep Space Network, located in Australia (which CSIRO oversees on behalf of NASA), Spain, and the USA, NASA has enlisted the 64-m Parkes dish of the ATNF to help track these spacecraft during the busy period, November 2003 to February 2004. NASA's Mars Global Surveyor and Mars Odyssey probes are already orbiting the planet. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

... It s well known that the planets, moons, asteroids and other objects in our Solar System orbit the Sun in a more-or-less perfectly flat, disc-like motion, like a spinning CD. ... By 25 July 2014, 1811 planets had been found orbiting distant stars, and the majority of these planets do orbit their stars in roughly disc-shaped orbits. ... The two planet-forming discs (one around each star) are tilted almost at a right-angle to each other. ... But there are some planets that orbit around two stars. ...

Электронная библиотека астронома-любителя. ... архив RSN . ... Ru.Space.News: . Март 1998 . ... Дата: 03 марта 1998 (1998-03-03) От: Alexander Bondugin Тема: Detailed Images From Europa Point To Slush Below Surface Привет всем! ... Recently transmitted from the Galileo spacecraft, the images provide three key pieces of evidence supporting the idea that water may lurk beneath Europa's surface. ... Europa's blindingly bright ice surface makes it one of the brightest objects in our solar system. ...

Журнал ПОВЕРХНОСТЬ публикует оригинальные статьи и обзоры по наиболее актуальным проблемам изучения поверхностных явлений. ... Редакция журнала 'Поверхность. ... Англоязычная версия журнала Journal of Surface Investigation . X-Ray, Synchrotron and Neutron Techniques выходит 6 раз в год . The Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques ( Poverkhnost '. ... X-ray, Synchrotron and Neutron Techniques is abstracted and/or indexed in (Impact Factor 0.359): . ...

XMM-Newton Science Analysis System Page: 1 orbit November 22, 2004 Abstract Create a FITS timeseries \HK-like" le from the ODF Spacecraft Reconstructed Orbit File. ... Both sets of values will be written into a standard OGIP-compliant FITS binary extension table with a TIME column value, derived from a start, stop and sampling interval time, each speci ed by the user. ... StartANDEndNotInODFRange (error) Start AND End times selected not congruent with input ODF obs times. ... 7 Output Files 1. ...

... Results of Lunar Reconnaissance Orbiter (LRO) . Dr. Bradley Thomson . Thursday, Jan 10, 2013 at 8:00 PM . Our speaker this month will be Dr Bradley Thomson, a senior research scientist at the Boston University Center for Remote Sensing. Dr. Thomson is going to be speaking about recent results of the Lunar Reconnaissance Orbiter mission concerning the search for Water Ice on the Moon. ... Jan . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

... Navigation of the SRT in "Radioastron" Mission . ... The orbital parameters are chosen to maximize evolution of the normal to the orbit plane (?-right ascension and i-declination) using the gravitational fields of the Moon and the Sun. ... The laser retroreflectors which will be used for the SRT ranging will increase precision of laser measurements. ... The span of an interval of measurement used for determination of orbit parameters should be not less that one full orbit. ...

Общая Астрономическая Конференция > Форумы общей направленности > Общий форум любителей астрономии . Фобос и Деймос в сверхнатуральную величину . ... Поиск . ... Image 1: http://sci.esa.int/content/searchima...328&ooid=27332 . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. ...

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. ... The Sych-2 satellite is being developed as a part of the space optical-range Earth observation system by the State Design Office of Yuzhnoye and built by the Industrial Association Yuzhny Machine Building Plant in cooperation w ith other space industry entities upon the state order of the National Space Agency of Ukraine . ...

... Space flight . ... On-line Data . ... a - defines the size of the orbit . ... i - defines the orientation of the orbit with respect to the Earth's equator . defines where the low point, perigee, of the orbit is with respect to the Earth's surface . ... defines where the satellite is within the orbit with respect to perigee . Info / On-line data: General description Position J-Track J-Track 3D Explanation . Info: Industry news On-line Data Company ATLAS news Events We in press Contact . ...

Марс - Красная Звезда . ... Марс . ... Mars Reconnaissance Orbiter" - NASA . ... Работа "Mars Reconnaissance Orbiter" на орбите планеты . HiRISE: Peneus Patera . 08.09.2007 . ... Камера HiRise (камера большого разрешения) кос-мического аппарата MRO запечатлела темную яму - провал на Марсе. ... На изображении виден уступ, который скорее всего образовался во время обвала края вулкана под собственным весом. ... В этом регионе Марса в настоящее время господствует северное лето. ...

Deimos Moon Base, Anguilla Crater Moondate 56-9-4: A routine satellite terrain survey reveals EM anomalies within the Uca Crater. A terrain patrol squad is sent to investigate. ... UAC Central decides to send a Drop Squad to investigate. ... Moondate 56-10-7.2: At Mission Time Elapsed (MTE) 0020, Deimos Moon Base receives an urgent message from the Aquarius, citing hostile fire from the Uca Base. The Aquarius is ordered to retrieve the Drop Squad and return immediatly to base by UAC Central. ...

Next: Discussion Up: Old neutron star distribution Previous: Galactic potential . It proves to be teachful to have a look at the calculated distribution (Fig. ... The galactic z -distribution of stars and peculiar velocities slightly smear out this narrow boundary. ... The final picture (Fig. ) of the old neutron star density distribution is obviously the sum of filled equipotential lobes with different weighted with the probability shown in the Fig. ...

... Новости астрономии и космонавтики (Модераторы: Karen , recarrion , LeMay ) ? Mars Reconnaissance Orbiter . ... Рейтинг: +1/-0 . Ответ #180 : 11.03.2006 [00:18:11] ? ... Записан . ... Mars Reconnaissance Orbiter действительно стал орбитальным аппаратом! ... The spacecraft, Mars Reconnaissance Orbiter, will provide more science data than all previous Mars missions combined. ... The instruments on Mars Reconnaissance Orbiter will examine the planet from this low-altitude orbit. ...

В рамках подготовки программы по возобновлению пилотируемых полетов на Луну и создания на ее поверхности постоянной базы в период с 2008 по 2016 год НАСА планирует провести дополнительное исследование Луны с помощью различных автоматических станций. Первыми стартовали сразу два космических аппарата: большой орбитальный зонд Lunar Reconnaissance Orbiter (LRO) и небольшой аппарат для исследования поверхности ударным методом Lunar Crater Observation and Sensing Satellite (LCROSS). ... орбиту Луны . ...