... 25a. Triad . ... Triad, launched September 2, 1972, was an experimental spacecraft designed to move in an accurately predictable low-altitude orbit, allowing its position to be used as a reference point in navigation. ... While the "proof mass" thus moved in an accurately predictable orbit, the spacecraft itself was subject to air resistance and sunlight pressure, causing it to move slightly differently. ... This experiment worked until the spacecraft ran out of fuel. ...

Since the days of Sputnik and Explorer 1, thousands of spacecraft have gone into space, some of them carrying human passengers. The first person to orbit the Earth was the Russian Yuri Gagarin, on April 12, 1961. The first American to do so was John Glenn, who completed three orbits on February 20, 1962; more than 26 years later, at age 77, Glenn returned to space aboard the space shuttle. ... in orbit. ... Manned satellites include various " space stations " intended for long-term residence. ...

HUBBLE SPACE TELESCOPE DAILY REPORT #3017 PERIOD COVERED: 0000Z (UTC) 12/12/01 - 0000Z (UTC) 12/13/01 Daily Status Report as of 347/0000Z 1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED: 1.1 Completed STIS / CCD /MA2 9119 (Io's Prometheus Plume, and the Composition and Spatial Distribution of Io's Atmosphere) The Space Telescope Imaging Spectrograph ( CCD and MA2) was The proposal completed a splanned. ... The observations completed with no anomalous activity. ...

TOOLS OF TEST GENERATION FOR SATELLITES CONTROL PROGRAMS Andrey Tyugashev, Ekaterina Myasnikova, Elena Sopchenko S.P. Korolyov Samara State Aerospace University (National Reseach University) The paper presents a research in the field of test automation for testing spacecraft control programs. ... Programmers or designers of spacecraft systems write tests manually. ... Tests are carried out by issuing the control actions on the spacecraft and condition monitoring systems parameters of the spacecraft. ...

The following are useful tcsh completions I use, which should mostly be fairly standard for any unix platform, so you can just drop them into place. # directories complete cd 'C/*/d/' complete rmdir 'C/*/d/' complete lsd 'C/*/d/' # signal names # also note that the initial - can be created with the first completion # but without appending a space (note the extra slash with no # append character specified) ...

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

... The one year crew. (image credit: NASA/Bill Stafford) . The тАЬOne Year CrewтАЭ has specific objectives to their mission all in a bid to find out if the human body and mind is capable of long missions to an asteroid, back to the Moon or even to Mars in the future. ... On-board the Russian space station Mir four cosmonauts clocked up more than a year in space in the 1980s and 1990s.€а (1942-) has the record for the longest single space flight of 437 days or 14 months in space in 1995. ...

... Meta Index / Home Page / User-visible functionality The OAL provides functionality to expand a pair of two or a tuple of four identifiers into a valid ODF data set name which can then be used to physically open the set, e.g. with the dal open method. The corresponding OAL routine receives a string which is either a valid data set name or of the form . odf(<instr>, <mode>[, <expnr>, <ccdnr>[, scheduledFlag]]) . ... For data sets for which the field is not applicable a value of 0 must be given. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. April 2, 1997 . A Complete Aurora . ... U. Iowa ), Polar , VIS , NASA . Explanation : Aurora frequently make complete rings around a pole of the Earth. ... A complete aurora l oval is normally hard to photograph because part of it usually occurs over a brightly sunlit portion of the Earth. ... About APOD > . ... NASA Technical Rep.: ...

... A Complete Solar Cycle from SOHO . ... 3.12.2007 . ... Credit: SOHO - EIT Consortium , ESA , NASA Explanation: Every eleven years, our Sun goes through a solar cycle. ... Solar minimums occurred in 1996 and 2007, while the last solar maximum occurred in 2001 Pictured above is a SOHO image of the Sun in extreme ultraviolet light for each year of the last solar cycle , with images picked to illustrate the relative activity of the Sun. ... Publications with keywords: solar cycle - solar maximum - SOHO ...

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...