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Topic: Phobos


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In the News (Sun 20 Dec 09)

  
  Encyclopedia: Phobos (moon)   (Site not responding. Last check: 2007-11-05)
Phobos was discovered on August 18, 1877 at about 09:14 UTC (given in contemporary sources as "August 17 16:06" Washington mean time using the old astronomical convention of beginning a day at noon, so 12 hours must be added to get the actual local mean time).
Phobos was first photographed close-up by Mariner 9 in 1971, Viking 1 in 1977, Phobos 2 in 1988, and by Mars Global Surveyor in 1998 and 2003.
Phobos is heavily (A bowl-shaped depression formed by the impact of a meteorite or bomb) cratered.
www.nationmaster.com /encyclopedia/Phobos-(moon)   (1543 words)

  
 NASA's Solar System Exploration: Planets: Mars: Moons: Phobos   (Site not responding. Last check: 2007-11-05)
Phobos, named after a messenger of the Roman god of war, is the larger of Mars' two moons and 27 by 22 by 18 km in diameter.
Phobos is nearing Mars at a rate of 1.8 meters every hundred years; at that rate, it will either crash into Mars in 50 million years or break up into a ring.
Phobos and Deimos appears to be composed of C-type rock, similar to flish carbonaceous chondrite asteroids.
sse.jpl.nasa.gov /planets/profile.cfm?Object=Mar_Phobos   (346 words)

  
 Phobos - Wikipedia, the free encyclopedia
Phobos is the larger and innermost of Mars' two moons.
Phobos (known as Huitzil outside of Japan) is a character in Capcom's fighting game series Darkstalkers as well as in the hit game, Quake III.
Phobos is also the standard runtime library of the D programming language
en.wikipedia.org /wiki/Phobos   (173 words)

  
 [No title]
PHOBOS [1] is an approved experiment, one of four to be ready to run at the turn-on of the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory.
The PHOBOS multiplicity detector measurements are also based on energy deposition and therefore rely on knowledge of the underlying momentum distribution for calibration.
PHOBOS is one of four detectors that will have the first look at the extreme energy densities that will be created when gold nuclei collide at RHIC.
teacher.nsrl.rochester.edu /Research/PHOBOS/TOF_Proposal/Proposal.html   (5976 words)

  
 Phobos 1, 2 Quicklook
Phobos was a Soviet mission to Mars consisting of 2 nearly identical spacecraft.
Phobos 2 also carried a second, smaller "hopper" lander designed to land on Phobos and then use its spring loaded legs to move ("hop") about the moon's surface to make chemical, magnetic and gravity observations at different locations.
Phobos 2 operated nominally throughout its cruise and Mars orbital insertion phases, gathering data on the Sun, interplanetary medium, Mars, and Phobos.
leonardo.jpl.nasa.gov /msl/QuickLooks/phobosQL.html   (532 words)

  
 Phobos Final
Phobos was probed by Mariners 7 and 9 and Vikings 1 and 2.
The shape of Phobos is a triaxial ellipsoid with semi-major axes of 13.4, 11.2, and 9.2 km.
When the spacecraft arrives at Phobos, the part containing the routines for controlling trajectory is erased and replaced by routines needed to control the landing of the mobile lander as well as routines needed by the stationary lander for communicating with the mobile lander.
www.tsgc.utexas.edu /archive/design/phobos   (10264 words)

  
 Phobos
Phobos ("FOH bus") is the larger and innermost of Mars' two moons.
Phobos and Deimos may be composed of carbon-rich rock like C-type asteroids.
Phobos and Deimos may someday be useful as "space stations" from which to study Mars or as intermediate stops to and from the Martian surface; especially if the presence of ice is confirmed.
www.nineplanets.org /phobos.html   (476 words)

  
 Mars' Moon Phobos
Phobos shows striated patterns which are probably cracks caused by the impact event of the largest crater on the moon.
This image was taken by the VSK instrument on the USSR Phobos 2 spacecraft in March of 1989 shortly before the spacecraft failed.
Because Phobos is only 28 by 20 kilometers (17 by 12 miles), the moon must have been nearly shattered from the force of the impact that caused the giant crater.
www.solarviews.com /eng/phobos.htm   (427 words)

  
 The PHOBOS detector
The PHOBOS experiment is based on the premise that interesting collisions will be rare, but that when they do occur, new physics will be readily identified.
The PHOBOS detector is able to measure quantities such as the temperature, size, and density of the fireball produced in the collision.
Seventy scientists from 12 institutions in three nations are working on PHOBOS, which is located at the 10 o'clock position on the RHIC ring.
www.bnl.gov /rhic/PHOBOS.htm   (284 words)

  
 The Page of Doom: Phobos
Phobos was discovered in 1877 by A.Hall (1829-1907) an American astronomer who used a new reactor with 65cm objective at the Washington Observatory.
Phobos is 6000 km away from Mars and is the closest satellite to its primary than any other in the solar system.
The surface of Phobos is covered with craters and a layer of rock and dust, known as regolith, made from impacts from meteorite in the past.
doomworld.com /pageofdoom/phobos.html   (417 words)

  
 Fact Sheet: Phobos Dynamics Experiment - Abstract
Radio contact with the Phobos lander is complicated by the fact that it and its radio antenna will be fixed to the moon, which is rotating and orbiting rapidly.
Phobos is the larger and inner of the two satellites of the planet Mars.
This Phobos Dynamics Experiment is led by Dr. Robert Preston of JPL in collaboration with a team of investigators from JPL, MIT, the French space agency CNES and the Soviet Union.
www.tsgc.utexas.edu /archive/characterizations/phobos.html   (3185 words)

  
 Mars Global Surveyor MOC2-66 Phobos Release
data indicate that the surface temperature in the shadowed region of Phobos is -170° F (-112° C), while a few kilometers away (on the sunlit side of Phobos) the temperature is +25° F (-4 ° C).
The extreme temperature differences between the night and day sides of Phobos indicate that the surface is composed of very small particles that lose their heat rapidly once the Sun sets.
Phobos, the inner and larger of the two moons of Mars, was the subject of several close observations taken by the Mars Global Surveyor during the past month.
mars.jpl.nasa.gov /mgs/msss/camera/images/9_11_98_phobos_rel   (940 words)

  
 Phobos (mythology) - Wikipedia, the free encyclopedia
In Greek mythology, Phobos ("fright") was the personification of fear and horror.
In the centre [of the Shield of Herakles] was Phobos (Fear) worked in adamant, unspeakable, staring backwards with eyes that glowed with fire.
His mouth was full of teeth in a white row, fearful and daunting, and upon his grim brow hovered frightful Eris (Strife) who arrays the throng of men...
www.wikipedia.org /wiki/Phobos_(mythology)   (179 words)

  
 WTP: Mars: Phobos' Largest Crater
This close-up of the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter, shows individual boulders near the rim of the crater.
This crater is nearly half the size of Phobos and these grooves may be fractures caused by its formation.
This image of Phobos, the inner and larger of the two moons of Mars, was taken by the Mars Global Surveyor on August 19, 1998.
pds.jpl.nasa.gov /planets/captions/mars/phobcrat.htm   (97 words)

  
 The Phobos 1 Mission to Mars
The Phobos 1 mission was launched on 7 July 1988 from Baykonur Cosmodrome.
The primary objective of the mission, as with its sister probe Phobos 2, was to explore the larger of Mars' two moons, Phobos.
The Phobos 1 spacecraft was lost enroute to Mars after a faulty command sequence was sent from Earth caused the spacecraft to shut down.
heasarc.gsfc.nasa.gov /docs/heasarc/missions/phobos1.html   (148 words)

  
 Mars Exploration: Mars: Extreme Planet
Phobos is the larger of the two heavily-cratered Martian moons and is dominated by three large craters.
The largest of Phobos' craters, Stickney, was named after the wife of Asaph Hall, the astronomer who discovered the moons of Mars.
The crater is so large relative to the size of Phobos that the satellite probably came close to breaking up.
mars.jpl.nasa.gov /facts/phobos.html   (228 words)

  
 NEEP 602 Lecture #16
It is speculated that Phobos could serve as a staging ground and source of certain resources for the manned mission to Mars.
For the purpose of this narrative, it is assumed that the Phobos excursion spacecraft is a Mars landing module that is employed prior to its use on the Martian surface.
During the solstitial phase, Phobos' nadir end is in continuous light, and during the equinoctial phase, the nadir end is in darkness for approximately 3/4 hour of each orbit.
fti.neep.wisc.edu /neep602/LEC16/neal.html   (2603 words)

  
 Phobos/Deimos Cliff - Phobos 5.9 - Climbing Info - Tuolumne Meadows, California USA   (Site not responding. Last check: 2007-11-05)
Phobos is the easier, better-protected, and better-known of the two 5.9s—if there is a car at the parking area there’s surely a party ahead of you.
A good strategy for Phobos, especially considering the danger from thunderstorms, is to climb something else in the morning, then hike up around noon (assuming no clouds are forming) and climb it in the afternoon.
Phobos route should be seen directly in front of you from the road.
www.supertopo.com /rockclimbing/route.html?r=tuphphob   (744 words)

  
 The Phobos 2 Mission to Mars
The Phobos 2 mission was launched on 12 July 1988 from Baykonur Cosmodrome.
The primary objective of the mission, as with its sister probe Phobos 1, was to explore the larger of Mars' two moons, Phobos.
The Phobos 2 spacecraft arrived at Mars on 30 January 1989, but was lost while maneuvering in Martian orbit to encounter Phobos on 27 March 1989.
heasarc.gsfc.nasa.gov /docs/heasarc/missions/phobos2.html   (200 words)

  
 BBC NEWS | Science/Nature | Mars moon emerges from the dark
Phobos is slowly falling down to Mars and is expected to crash into the planet in the next few million years.
Measuring about 27km by 19km, Phobos (from the Greek for fear) is the larger of two moons in orbit around Mars.
Phobos is locked in a so-called "death spiral", which means it is in an orbit that is gradually pulling it on a collision course with the surface of the planet.
news.bbc.co.uk /1/hi/sci/tech/4004001.stm   (256 words)

  
 Mars Global Surveyor MOC2-400 Release
Thus, four wide angle images were obtained to make the picture of Phobos over the martian limb: a pair of red and blue wide angle images was acquired for the limb, and a pair of separate images were required to see Phobos.
The wide angle images illustrate the fact that Phobos is mostly colorless (dark gray); the faint orange/red hue in the wide angle picture is a combination of slight differences in the focal lengths of the blue and red cameras and the orange/red illumination provided by reflection of sunlight off Mars.
The rows of grooves and aligned pits on Phobos are related to, and were probably caused by, a large meteor impact that occurred on the side of Phobos that is not seen here.
www.msss.com /mars_images/moc/2003/06/23   (541 words)

  
 Sea and Sky's Tour of the Solar System: Phobos
Phobos was named after Fear, one of the charioteers of the Roman god, Mars.
Phobos and its cousin, Deimos, were discovered in 1877 by American astronomer Asaph Hall while observing Mars at the U.S. Naval Observatory in Washington.
Phobos is believed to be composed of carbon-rich rock like that found in C-type asteroids that exist in the outer asteroid belt.
www.seasky.org /solarsystem/sky3e2.html   (564 words)

  
 Universe Today - Close View of Phobos
Phobos is locked in a "death spiral" around Mars, and it'll eventually crash into the planet, or be torn apart and turned into a short-lived ring.
This tiny moon is thought to be in a ‘death spiral’, slowly orbiting toward the surface of Mars.
Eventually Phobos could be torn apart by Martian gravity and become a short-lived ring around Mars, or even impact on the surface.
www.universetoday.com /am/publish/close_view_phobos.html?12112004   (648 words)

  
 ORRERY: Mars' Moons - Phobos & Deimos
Both Phobos and Deimos are very close to the planet compared to Earth's Moon.
Phobos is the larger of the two, but would appear from the surface to be about 1/3 of the size of our Moon.
From Mars, Phobos is seen to rise then set in only 4 hours.
www.harmsy.freeuk.com /phobos.html   (387 words)

  
 Martian moon Phobos hip-deep in powder
New temperature measurements show the surface must be composed largely of finely ground powder at least one meter (three feet) thick, according to scientists studying infrared data from the thermal emission spectrometer instrument on the spacecraft.
A 10-kilometer-diameter (six-mile) crater called Stickney, which is almost half the size of Phobos itself, shows light and dark streaks trailing down the slopes of the bowl, illustrating that even with a gravity field only about 1/1000th that of the Earth's, debris still tumbles downhill.
Infrared measurements of Phobos were made on August 7, 19 and 31 from distances ranging between 1,045-1,435 kilometers (648-890 miles), far enough away to capture global views of the Martian moon in a single spectrum.
www.jpl.nasa.gov /releases/98/mgsphobos.html   (727 words)

  
 Phobos
Phobos is closer to it's planets surface than any other moon in the solar system, less than 6000 km above the surface of Mars.
Phobos and Deimos (Marses other moon) may be composed of carbon-rich rock like C-type asteroids.
The most prominent feature on Phobos is the large crater named Stickney, the maiden name of Hall's wife (Hall discovered Mars).
www.users.zetnet.co.uk /pete/Phobos.htm   (420 words)

  
 UFOS at close sight: Soviet probe meets ufo on Phobos mission?
The Soviet Phobos 2 probe was sent to examine the Martian moon Phobos (The USSR was interested in the possibility of using Phobos as a staging post for a manned exploration of Mars)
It was also speculated that the Russian mission had been deliberately terminated by aliens unwilling to let Phobos 2 approach the moon, supposed to be an artificial avant-poste of alien visitors on their way to earth.
Phobos 1, and its companion spacecraft Phobos 2, were the next-generation in the Venera-type planetary missions, succeeding those last used during the Vega 1 and 2 missions to comet P/Halley.
ufologie.net /htm/phob12.htm   (1243 words)

  
 Mars and its strange Moons
Phobos 2 was also ultimately lost in the most intriguing circumstances, but not before it had beamed back certain images and information from the planet Mars itself.
The 'anomaly' seen in the Phobos 2 transmission was a thin ellipse with very sharp rather than rounded points (the shape is known in the diamond trade as a "marquise") and the edges, rather than being fuzzy, stood out sharply against a kind of halo on the Martian surface.
The cigar shaped craft in the penultimate frame taken by Phobos 2 is apparently the object casting the oblong shadow on the surface of Mars in the earlier photo.
www.ufos-aliens.co.uk /cosmicmars.htm   (3294 words)

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