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Topic: 1998 KY26

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	1998 KY26 - Wikipedia, the free encyclopedia
		The correct title is 1998 KY The meteoroid 1998 KY (also written 1998 KY26) was discovered on June 2, 1998 by Spacewatch and observed until June 8 while it passed 800,000 kilometers (half a million miles) away from Earth (a little more than twice the Earth-Moon distance).
		Somewhat arbitrarily, an object must be at least 50 m in diameter to be considered an asteroid; 1998 KY has a shape similar to a sphere and is about only 30 m (100 ft) in diameter.
		Since 1998 KY was found to be a fast rotator, several other small asteroids have been found to also have short rotation periods, some even faster than 1998 KY Three views of a computer model of Asteroid 1998 KY edit]
	en.wikipedia.org /wiki/1998_KY26 (325 words)

	[31.05] Recovery of 1998 KY26: Implications for Detecting the Yarkovsky Effect (Site not responding. Last check: 2007-10-09)
		The Apollo-type asteroid 1998 KY26 was identified as an ideal target for the detection of the Yarkovsky effect (Vokrouhlicky et al.
		At the time of its 2024 close approach to the Earth, the displacement arising from the Yarkovsky effect could be as large as 4500 km.
		However, this 30 meter diameter near-Earth asteroid was observed for only 12 days in 1998, though there is a radar detection of it, and it was noted that the orbit uncertainties could be as large as the expected effect if the orbit is not carefully monitored.
	www.aas.org /publications/baas/v35n4/dps2003/452.htm (340 words)

	1998 KY26 (Site not responding. Last check: 2007-10-09)
		Asteroid 1998 KY26 was discovered by the Spacewatch telescope in Arizona as it passed two lunar distances from Earth in June 1998.
		The observations reveal a lumpy spheroid with a diameter of about 30 meters, a composition analogous to carbonaceous chondritic meteorites, and a rotation period on 10.7 minutes, which is too rapid for 1998 KY26 to consist of multiple components bound together just by their mutual gravitational attraction.
		1998 KY26 is more accessible to spacecraft than any other solar system object with a well known orbit.
	analyzer.depaul.edu /see_project/orbits/ky26.htm (112 words)

	Sun never sets, for long, on fast-spinning asteroid
		Asteroid 1998 KY26, where the Sun rises or sets every five minutes, was observed June 2-8, 1998, shortly after it was discovered and as it passed 800,000 kilometers (half a million miles) from Earth, or about twice the distance between Earth and the moon.
		Moreover, 1998 KY26 is in an orbit whose shape and low inclination with respect to the ecliptic plane make it unusually easy to intercept.
		Tracking of 1998 KY26 by Ostro and his colleagues in the international scientific community was supported by NASA's Office of Space Science, Washington, DC, and by the Czech Republic's Academy of Sciences in Prague.
	www.jpl.nasa.gov /releases/99/98ky26.html (842 words)

	1998 KY26 -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-09)
		The (Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)) asteroid has a shape similar to a (A particular environment or walk of life) sphere of about 30m (100 ft) diameter.
		Asteroid 1998 KY is the smallest (The sun with the celestial bodies that revolve around it in its gravitational field) solar system object ever studied in detail and was the fastest spinning object observed at the time of its discovery.
		Since 1998 KY was found to be a fast rotator, several other small (Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)) asteroids have been found to also have short rotation periods, some even faster than 1998 KY External links
	www.absoluteastronomy.com /encyclopedia/1/19/1998_KY261.htm (249 words)

	RASNZ Occultation Section - Minor Planet News (July 1999)
		Basing their data on a December 23, 1998 flyby of Eros by NEAR, the scientists used images to find that the asteroid is elongated into a shape like that of "a kidney bean or banana", measuring 33 by 13 by 13 km (20 by 8 by 8 mi.).
		Whirling at that speed and given its size, 1998 KY26 has to be a strong, single chunk of rock that was sent reeling from its parent asteroid in some space collision, said James V. Scotti, a senior research specialist at the UA Lunar and Planetary Laboratory (LPL) and a co-author of the Science paper.
		LPL Professor Tom Gehrels, Spacewatch co-founder, discovered asteroid 1998 KY26 on May 28, 1998, using the 0.9 meter (36-inch) Spacewatch telescope at Kitt Peak, Ariz. Six nights later Scotti, joined at the Spacewatch telescope by Dan Durda, took 111 images of the asteroid, measuring its minimum to maximum changes in brightness.
	occsec.wellington.net.nz /planet/news/news9907.htm (4880 words)

	News Releases
		Asteroid 1998 KY26 spins faster than any object ever observed in the solar system, completing one full revolution in only 10.7 minutes, compared to Earth's 24-hour day.
		The lumpy sphere, about the diameter of a baseball diamond, was observed June 2-8, 1998, as it passed 500,000 miles from Earth, about twice the distance between Earth and the moon.
		1998 KY26's size makes it harmless if it were on a collision course with our planet, since it most likely would explode into fragments in the upper atmosphere and fall harmlessly to Earth.
	www.wsu.edu /NIS/releases2/nh115.htm (406 words)

	Encyclopedia: 1998 KY26
		The meteoroid 1998 KY (also written 1998 KY26) was discovered on June 2, 1998 by Spacewatch and observed until June 8 while it passed 800,000 kilometers (half a million miles) away from Earth (a little more than twice the Earth-Moon distance).
		Since 1998 KY was found to be a fast rotator, several other small asteroids have been found to also have short rotation periods, some even faster than 1998 KY Presentation of the Solar system (not to scale).
		Three views of a computer model of Asteroid 1998 KY Download high resolution version (835x246, 15 KB) A 3D computer model of Asteroid 1998 KY26 Copyright status Public domain: NASAs JPL Digital Image Animation Laboratory.
	www.nationmaster.com /encyclopedia/1998-KY26 (1113 words)

	1998 KY26 (Site not responding. Last check: 2007-10-09)
		The asteroid 1998 KY is the little dot that moves among the background stars from upper-left to lower-right in the frames.
		The asteroid 1998 KY was discovered by Tom Gehrels on the night of May 28, 1998 (UT) during a routine scanning session.
		As of 2002 July 28, 1998 KY26 was still the most accessible (lowest DeltaV = 3.9 km/s) asteroid among those NEOs with well-determined orbits.
	spacewatch.lpl.arizona.edu /1998ky26.html (277 words)

	1998 KY26 (Site not responding. Last check: 2007-10-09)
		The asteroid 1998 KY was discovered on June 2, 1998 and observed until June 8 while it passed 800,000 kilometers (half a million miles) away from Earth.
		The asteroid has a form similar to a sphere of a 30m (100 ft) diameter, making it relatively small as it is believed to be the size of a large dinosaur or whale.
		Asteroid 1998 KY is the smallest solar system object everstudied in detail and the fastest spinning object ever observed in the system.
	www.therfcc.org /1998-ky26-211050.html (176 words)

	mcmillan (Site not responding. Last check: 2007-10-09)
		1998 KY26 is also more accessible to spacecraft than any other asteroid with a well known orbit [12].
		Lest anyone think that an asteroid only 30 m in diameter is "merely a small rock, not worth visiting", one should realize that a solid sphere 30 m in diameter with a density of 2.5 has a mass of 35 000 metric tons.
		1998 KY26 also has a surface area greater than half an acre, in case a space station [13] were to be built around it.
	www.mines.edu /research/srr/mcmillan.html (1009 words)

	RASNZ Occultation Section - Minor Planet News (March 2000)
		Spinning faster than any object ever observed in the solar system, a lumpy, water-rich sphere known as 1998 KY26, measuring about the diameter of a baseball diamond, is rotating so swiftly that its day ends almost as soon as it begins, NASA scientists report.
		Asteroid 1998 KY26, where the Sun rises or sets every five minutes, was observed June 28, 1998, shortly after it was discovered and as it passed 800,000 kilometers (half a million miles) from Earth, or about twice the distance between Earth and the Moon.
		1998 KY26's color and radar reflectivity showed similarities to carbonaceous chondrites, primordial meteorites that formed during the origin of the solar system and are unlike any rocks formed on Earth.
	occsec.wellington.net.nz /planet/news/news0003.htm (2901 words)

	asteroid 1998 KY26 (Site not responding. Last check: 2007-10-09)
		1998 KY26 is a tiny (about 30 meter/yards wide), fast-rotating near-Earth object that from optical and radar observations is thought to be made mostly of water ice, and unusually spherical for a small object.
		KY26 was discovered by Tom Gehrels on 28 May 1998 using the old Spacewatch 0.9m telescope.
		During 6-8 June 1998, it was observed by radar from Goldstone.
	www.hohmanntransfer.com /cgi-bin/get.cgi?des=1998ky26 (252 words)

	1998 KY26 and The Little Prince
		26: Two Extreme Asteroids, 1998 KY26 and 1999 JM8 Radar specialists at the Goldstone tracking facility in California and at Arecibo Observatory in Puerto Rico are always eager to ping asteroids in Earth's vicinity, and the past year has provided them with two unusual targets.
		Goldstone's 70-meter dish was among the many telescopes directed at the interloper, and three days of radar work revealed that 1998 KY26 is only about 30 meters across, as its feeble brightness had suggested.
		More intriguing than its size or composition was the realization that 1998 KY26 spins completely in just 10.7 minutes, faster by far than any known object in the solar system.
	www7.pair.com /arthur/meteor/archive/archive9/Nov99/msg00488.html (1050 words)

	Spacepic88 (Site not responding. Last check: 2007-10-09)
		A day is just under 11 minutes long on 1998 KY26, a 30 metre wide, fast-spinning, water-rich asteroid.
		This computer simulated view of its lumpy surface has a resolution of about 3 meters and is based on radar and optical observations.
		As the radar and optical data suggest 1998 KY26 has a high water content, this relatively accessible asteroid could be a literal oasis for future space explorers.
	www.toothill70.freeserve.co.uk /astronomy/spacepic88.htm (169 words)

	tech: Fast-spinning, water-rich asteroid found (Site not responding. Last check: 2007-10-09)
		> > Asteroid 1998 KY26, where the Sun rises or sets every five >minutes, was observed June 2-8, 1998, shortly after it was >discovered and as it passed 800,000 kilometers (half a million >miles) from Earth, or about twice the distance between Earth and >the moon.
		Ironically, >this asteroid is smaller than the radar instruments we used to >observe it." > > The asteroid's rotation period was calculated at just 10.7 >minutes, compared to 24 hours for Earth and at least several >hours for the approximately 1,000 asteroids measured to date.
		> > Tracking of 1998 KY26 by Ostro and his colleagues in the >international scientific community was supported by NASA's Office >of Space Science, Washington, DC, and by the Czech Republic's >Academy of Sciences in Prague.
	www.homoexcelsior.com /archive/technology/msg02061.page (866 words)

	¿La Tierra en Peligro (Site not responding. Last check: 2007-10-09)
		El encuentro con el asteroide 1998 KY Durante la madrugada del pasado 8 de junio una pequeña roca se convirtió en uno de los asteroides que más cerca ha pasado a la Tierra.
		Incluso en esta primera noche de observación el 1998 KY mostraba un trazo largo en una exposición de tan solo 30 segundos.
		De momento el 1998 KY se está alejando muy lentamente de la Tierra.
	www.iac.es /galeria/mrk/1998ky26.html (3589 words)

	(meteorobs) (Intriguing) Excerpts from "CCNet, 29/2000 - 8 March 2000"
		Asteroid 1998 KY26, where the Sun rises or sets every five minutes,=20 was observed June 2=AD8, 1998, shortly after it was discovered and as=20 it passed 800,000 kilometers (half a million miles) from Earth, or=20 about twice the distance between Earth and the Moon.
		1998 KY26's color and radar reflectivity showed similarities to=20 carbonaceous chondrites, primordial meteorites that formed during the=20 origin of the solar system and are unlike any rocks formed on Earth.
		1998 KY26 is very unusual, however, because gravity and mass play no significant role in its=20 shape.
	www.meteorobs.org /maillist/msg17959.html (1775 words)

	Database of Near-Earth Asteroids
		(1998) B.A.A.S. (Close Encounters: Observations of the Earth-crossing Asteroids 1998 KY26 and 1998 ML14)
		(7) Pravec, P. & L Sarounova (1998) I.A.U. Circ.
		(10) Hicks, M. Weissman (1998) B.A.A.S. (Close encounters: Observations of the Earth-crossing asteroids 1998 KY26 and 1998 ML14)
	earn.dlr.de /nea/J98K26Y.htm (179 words)

	A/CC Catalog: Asteroids Unnumbered
		1998 DK36 was discovered on 23 Feb. 1998 by David J. Tholen and then graduate student Robert J. Whiteley using a special camera attached to the University of Hawaii (U.H.) 2.24m telescope while attempting the difficult task of finding asteroids on the Sun side of Earth's orbit.
		It was discovered by Spacewatch on 22 May 1998 and hadn't been spotted since ten days after that, until recovered on 24 April 2003.
		1998 WW31 was one of thirteen trans-Neptunian objects found by Lowell Observatory's Deep Ecliptic Survey during a run with the Mayall 4m telescope at Kitt Peak on 18 Nov. 1998.
	www.hohmanntransfer.com /cat/astu.htm (3053 words)

	[10.06] Close Encounters: Observations of the Earth-crossing Asteroids 1998 KY26 and 1998 ML14. (Site not responding. Last check: 2007-10-09)
		We obtained BVRI photometry of the recently discovered Earth-crossing asteroid 1998 KY26 with the 0.6m telescope at the Table Mountain Observatory, and of 1998 ML14 with the 2.5m and 2.2m telescopes at the Las Campanas and University of Hawaii Observatories, respectively.
		The two asteroids vary greatly in absolute magnitude, with an estimated diameter of 40 meters for 1998 KY26 and 1 km for 1998 ML14.
		The extremely fast rotation of 1998 KY26 implies that the object must be a monolithic body [3].
	www.aas.org /publications/baas/v30n3/dps98/341.htm (237 words)

	Asteroid (Site not responding. Last check: 2007-10-09)
		Until 1998, asteroids were discovered by a four-step process.
		First, a region of the sky was photograph ed by a wide-field telescope.
		Since 1998, a large majority of the asteroids have been discovered with automated systems that comprise Charge-Coupled Device (CCD) cameras and computers directly connected to telescopes.
	www.serebella.com /encyclopedia/article-Asteroid.html (1916 words)

	Text: Fastest Spinning Asteroid Holds Possible Human Benefits
		Asteroid 1998 KY26, discovered by the University of Arizona's Spacewatch telescope and tracked by several other telescopes, including one located in the Czech Republic, has minerals that probably contain about four million liters of water.
		According to Dr. Steve J. Ostro of NASA's JPL, because 1998 KY26 is in an orbit that makes it the most accessible asteroid to spacecraft, its location and nutrient-rich soil make it a possible site to grow food for future human colonies.
		1998 KY26 is the fastest spinning object ever observed in the solar system.
	www.usembassy-israel.org.il /publish/press/global/archive/1999/july/gi1728.htm (1088 words)

	ostro (Site not responding. Last check: 2007-10-09)
		1998 ML14 is spheroidal, with protrusions that suggest a rock-pile configuration.
		Radar and optical observations recently revealed the physical characteristics of 1998 KY26, an approxi-mately 30-meter-wide, monolithic spheroid that is an order of magnitude smaller than any other solar sys-tem object ever studied in detail, and that rotates an order of magnitude faster than any other solar system body.
		1998 KY26 is more accessible to spacecraft rendezvous and roundtrip missions than any other asteroid with a well known orbit.
	www.mines.edu /research/srr/ostro.html (641 words)

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