Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: 951 Gaspra


Related Topics

  
  Asteroid Gaspra
Gaspra was just another small asteroid that was given very little attention until it was discovered that the trajectory of the Galileo spacecraft would take it close to Gaspra.
Gaspra was found to have an elongated shape with a rotational period of 7.04 hours.
Gaspra spins counterclockwise; its north pole is to the upper left, and the "nose" which points upward in the first image, is seen rotating back into shadow, emerging at lower left, and rotating to upper right.
www.solarviews.com /eng/gaspra.htm   (721 words)

  
 Asteroid Gaspra   (Site not responding. Last check: 2007-11-05)
Gaspra is one of the larger asteroids and gained publicity in 1991 when the spacecraft Galileo swung by it on October 29 in a slingshop maneuver to gain energy as a part of its planned Jupiter mission.
Referred to as 951 Gaspra, this asteroid is an irregular body with dimensins about 19x12x11 kilometers (12x7.5x7 miles).
This picture of 951 Gaspra is an enhanced image based on data from the Galileo spacecraft as it approached on October 29, 1991.
hyperphysics.phy-astr.gsu.edu /hbase/solar/gaspra.html   (226 words)

  
 951 Gaspra
951 Gaspra (asteroid 951) is an S-type asteroid[?] that orbits in the inner edge of the asteroid belt.
It has half a dozen large concavities which resemble craters, though there is some debate whether these are the result of impacts or whether they are instead facets formed when Gaspra broke off of its parent asteroid.
Neujamin named Gaspra after a Black Sea retreat that was visited by his contemporaries such as Gorky and Tolstoy.
www.ebroadcast.com.au /lookup/encyclopedia/95/951_Gaspra.html   (123 words)

  
 The Solar System
Prior to this flight, Gaspra was an obscure asteroid in the main belt.
Spectra obtained of Gaspra from the Mauna Kea Observatory in Hawaii aided in the course adjustments of Galileo.
Gaspra's rotation was determined to be 7 hours by the spectra.
www.refinerofgold.com /stars/inner/gaspra.htm   (185 words)

  
 [No title]
This history may not be unusual for asteroids like Gaspra, many of which are believed to have accreted into relatively substantial minor planets during the formation of the solar system, only to be broken down in collisions over the ensuing billions of years.
Ida, like Gaspra, is an S‑type asteroid, meaning that it is a reddish object composed of a mixture of the minerals pyroxene, olivine, and iron.
The asteroid 951 Gaspra (inset) image is a mosaic of two images taken by Galileo from a range of 5,300 km some 10 minutes before closest approach, on October 29, 1991.
teacherlink.ed.usu.edu /tlnasa/pictures/litho/Asteriods/Asteriods.htm   (688 words)

  
 [54.05] Is Asteroid 951 Gaspra in a Resonant Obliquity State with YORP Increasing Its Spin Rate?   (Site not responding. Last check: 2007-11-05)
Asteroid 951 Gaspra appears to be in an obliquity resonance with its spin increasing due to the YORP effect.
Gaspra, an asteroid 5.8 km in radius, is a prograde rotator with a rotation period of 7.03 hours.
From its known shape and spin axis orientation and assuming a uniform density, Gaspra’s axial precession period turns out to be nearly commensurate with its orbital precession period, which leads to a resonance condition with consequent huge variations in its obliquity.
www.aas.org /publications/baas/v33n3/dps2001/398.htm   (232 words)

  
 951 Gaspra   (Site not responding. Last check: 2007-11-05)
951 Gaspra orbits the Sun near the inner edge of the main asteroid belt between Mars and Jupiter.
Gaspra was named by its discoverer Neujmin for a resort on the Crimean peninsula.
Gaspra is a member of the Flora family of asteroids.
www.seds.org /nineplanets/nineplanets/gaspra.html   (163 words)

  
 Highest Resolution Gaspra Mosaic
This picture of asteroid 951 Gaspra is a mosaic of two images taken by the Galileo spacecraft from a range of 5,300 kilometers (3,300 miles), some 10 minutes before closest approach on October 29, 1991.
The number of such small craters compared to larger ones is much greater for Gaspra than for previously studied bodies of comparable size such as the satellites of Mars.
Gaspra's very irregular shape suggests that the asteroid was derived from a larger body by nearly catastrophic collisions.
www.solarviews.com /cap/ast/gaspra3.htm   (363 words)

  
 THE SHATTERING OF 951 GASPRA
951 Gaspra is an irregular asteroid with an average radius of 6.1 kilometers.
Located at the inner edge of the main asteroid belt between Mars and Jupiter, Gaspra is believed to be composed mainly of olivine, pyroxene, and nickel-iron.
Grooves on Gaspra occur as linear and pitted depressions, typically 100-200 m wide, 0.8 to 2.5 km long, and 10-20 m deep.
www.science-frontiers.com /sf094/sf094a05.htm   (299 words)

  
 Gaspra Research   (Site not responding. Last check: 2007-11-05)
Galileo flyby images of 951 Gaspra show a crater population dominated by fresh craters several hundred meters in diameter and smaller.
Gaspra's crater population differs from that observed on Phobos but resembles those observed on the Moon and Mars at these sizes (consistent also with the near-Earth asteroid population).
Gaspra's fresh craters are superposed on a landscape that appears "smoothed" at a vertical scale of hundreds of meters.
www.boulder.swri.edu /clark/gaspra.html   (494 words)

  
 .: Print Version :.
An asteroid officially called "951 Gaspra" orbits the sun near the inner edge of the main asteroid belt between Mars and Jupiter.
"951 Gaspra" was observed close-up on Oct. 29, 1991 by the Galileo spacecraft on its way to Jupiter.
In Florida, State Highway 951 ---- also called Collier County Route 951 ---- is the section of roadway between Collier County Route 92 and U.S. The Porsche 944 Turbo ---- also known as the Porsche 951 ---- was introduced in the United States in 1986 and discontinued in 1989.
www.nctimes.com /articles/2004/07/16/news/columnists/john_hunneman/21_39_587_15_04.prt   (521 words)

  
 951 Gaspra at opensource encyclopedia   (Site not responding. Last check: 2007-11-05)
951 Gaspra is an S-type asteroid that orbits in the inner edge of the asteroid belt.
Gaspra was the first asteroid ever closely approached when it was visited by the Galileo probe on October 29, 1991 as it flew by on its way to Jupiter.
Neujmin named Gaspra after a Black Sea retreat that was visited by his contemporaries such as Gorky and Tolstoy.
www.wiki.tatet.com /951_Gaspra.html   (154 words)

  
 10. Highest-Resolution Image of Gaspra
Gaspra has far more small craters compared to larger ones than other, previously studied bodies of comparable size, such as the moons of Mars.
This is consistent with the theory that Gaspra is of comparatively recent origin from the collisional breakup of a larger body, a survivor of a series of catastrophic events.
Since we don't see any large craters on Gaspra that such a collision would leave behind, this probably means that Gaspra is relatively young, and simply hasn't picked up any major scars as yet (much like how we can tell that a car is new because it doesn't have any scratches or dents).
www.oarval.org /slide10en.htm   (796 words)

  
 Asteroids   (Site not responding. Last check: 2007-11-05)
Ida, like Gaspra, is an S-type asteroid, meaning that it is a reddish object composed of a mixture of the minerals pyroxene, olivine, and iron.
Gaspra and Ida like other S-class asteroids are the parent bodies of some types of basaltic meteorites.
This image taken by Galileo in August 1993, provides conclusive evidence that natural satellites of asteroids exist The asteroid 951 Gaspra (inset) image is a mosaic of two images taken by Galileo from a range of 5,300 km some 10 minutes before closest approach, on October 29, 1991.
www.ccsn.nevada.edu /planetarium/asteroid.html   (666 words)

  
 ESA Science & Technology: Space missions to asteroids   (Site not responding. Last check: 2007-11-05)
Gaspra and Ida were imaged by the Galileo spacecraft while Mathilde was imaged by the NEAR spacecraft.
Gaspra is a member of the Flora family of main belt asteroids.
Like Gaspra, it is heavily cratered and probably composed of silicates, but it also has a scattering of large boulders and is probably covered with a deep layer of fine material.
sci.esa.int /science-e/www/object/index.cfm?fobjectid=2306   (2098 words)

  
 Gaspra and Ida   (Site not responding. Last check: 2007-11-05)
Gaspra 951 (951 means that Gaspra was the 951st asteroid to be named) was discovered in 1916 by astronomer Grigori Neujmin of the Ukraine, and named for a scientists' resort on the Crimean peninsula.
Galileo's mission when flying by Gaspra and Ida was mainly to take pictures of the asteroids so we could see their size, shape, and what kind of craters they have.
Gaspra's surface is covered with craters, some as wide as 1.5 kilometers, which means that something about 100 meters (330 feet) in size hit the surface at some time, probably traveling about 5 kilometers (3.1 miles) per second.
www.suekientz.com /galileo/writing/asteroid.htm   (4211 words)

  
 Galileo Project: Asteroids
On its journey to Jupiter, Galileo returned some spectacular images of Asteroid 951, Gaspra, and Asteroid 243, Ida, and its moon (243)1 Dactyl.
This picture of asteroid 951 Gaspra is a mosaic of two images taken by the Galileo spacecraft some 10 minutes before closest approach on October 29, 1991.
This is the first full picture showing both asteroid 243 Ida and its newly discovered moon to be transmitted to Earth Galileo spacecraft--the first conclusive evidence that natural satellites of asteroids exist.
www2.jpl.nasa.gov /galileo/images/astimages.html   (90 words)

  
 [No title]   (Site not responding. Last check: 2007-11-05)
GEOMORPHOLOGICAL/GEOLOGICAL MAP OF ASTEROID 951 GASPRA this is an experimental geological map of asteroid 951 Gaspra, the first asteroid visited by a spacecraft.
In this case, 'rough terrain' is covered with craters up to 3 km across and numerous long shallow valleys ('grooves'), probably the surface expressions of fractures in the solid interior.
Smooth terrain is a thick layer of 'soil' (regolith) which is blasted out of craters elsewhere on Gaspra and preferentially accumulates on surfaces that face forwards as the asteroid rotates.
publish.uwo.ca /~pjstooke/gasgeol.txt   (205 words)

  
 CHAPTER 5A
Gaspra is essentially a big rock in space, battered and pummeled over time by cosmic collisions.
Despite hundreds of craters distributed uniformly over its surface, Gaspra is relatively free of impact craters when compared with the Moon, suggesting that some event erased the evidence of truly ancient collisions.
Based on the paucity of craters on Gaspra, its surface is estimated to be about 200 million years old compared with the 4.6-billion-year-age of the solar system.
www.tufts.edu /as/astronomy/LangChap5.html   (2895 words)

  
 [No title]   (Site not responding. Last check: 2007-11-05)
SHADED RELIEF MAP OF ASTEROID 951 GASPRA Gaspra.gif is a shaded relief map of asteroid 951 Gaspra, the first asteroid visited by a spacecraft.
As with all maps, it is the carto- grapher's interpretation and not all features are necessarily certain given the limited data available - this interpretation stretches the data as far as is feasible.
I digitized the contours and interpolated to give a low resolution shape model, then refined it by fitting it to limbs and terminators in the images.
publish.uwo.ca /~pjstooke/gaspra.txt   (300 words)

  
 png
This picture of asteroid 951 Gaspra was taken by the Galileo spacecraft from a range of 3,300 miles on October 29, 1991.
Gaspra is an irregular body with dimensions about 12 x 7.5 x 7 miles.
The number of small craters compared to larger ones is much greater for Gaspra than for previously studied bodies of comparable size such as the satellites of Mars.
home.san.rr.com /dpetit/web101/school/png.htm   (612 words)

  
 Science News: False-color image hints at Gaspra's origin - asteroid 951 Gaspra   (Site not responding. Last check: 2007-11-05)
Veverka notes that the infrared-dark patches on Gaspra coincide with ridges and the freshest craters.
Moreover, Gaspra should lack the gravity to hold this soil on its surface.
Gaspra's muted color variations, most of which can be accounted for by regolith, hint that the asteroid represents an intact chunck from a primitive, chemically uniform parent - some object whose composition has remained unaltered since the solar system formed, Veverka says.
www.findarticles.com /p/articles/mi_m1200/is_n24_v140/ai_11715043   (499 words)

  
 Welcome to Small Bodies   (Site not responding. Last check: 2007-11-05)
The Galileo spacecraft passed by asteroid 951 Gaspra on October 29, 1991.
Gaspra is roughly 17 km (10 mi) long, 10 km (6 mi) wide.
Ida appears to be about 52 kilometers (32 miles) in length, more than twice as large as Gaspra Ida is an irregularly shaped asteroid placed by scientists in the S class (believed to be like stony or stony- iron meteorites).
www.csulb.edu /web/courses/geo/planets/smb.html   (353 words)

  
 Galileo snaps first close-up of an asteroid. (space probe) - Science News - HighBeam Research   (Site not responding. Last check: 2007-11-05)
As Galileo closed in on Gaspra, however, an unusually successful navigation enabled engineers to identify four likely asteroid images among a mosaic of 36 photographs.
Researchers believe Gaspra is a fragment chipped from a larger object.
Some scientists contend that blasts of heat may have altered the composition of these asteroids so that iron and other dense materials concentrate in the core white lower-density minerals lie closer to their surfaces.
www.highbeam.com /library/docfree.asp?DOCID=1G1:11661269&ctrlInfo=Round18:Mode18c:DocG:Result&ao=   (776 words)

  
 Catalog Page for PIA00119
Gaspra is an irregular body with dimensions about 19 x 12 x 11 kilometers (12 x 7.5 x 7 miles).
The north pole is located at upper left; Gaspra rotates counterclockwise every 7 hours.
A striking feature of Gaspra's surface is the abundance of small craters.
photojournal.jpl.nasa.gov /catalog/PIA00119   (370 words)

  
 :: NASA Quest > Archives ::   (Site not responding. Last check: 2007-11-05)
This picture of asteroid 951 Gaspra is a combination of the highest-resolution morphology and color information obtained by the Galileo spacecraft during its approach to the asteroid on October 29, 1991.
The base image is the best fl-and-white view of Gaspra (resolution 54 meters/pixel) on which are superimposed the subtle color variations constructed from violet, green, and near-infrared (1000 nanometers) inages taken in an earlier sequence at a resolution about 164 meters/pixel.
The very subtle color variations on Gaspa's surface have been artificially exaggerated here; to first order Gaspra's color is fairly homogeneous over the surface.
quest.arc.nasa.gov /galileo/imageprs/bestgaspra.html   (322 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.