Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. 24/7 Space News .




DEEP IMPACT
Asteroid 2005 YU55 To Approach Earth Nov 8 2011
by Staff Writers
Pasadena CA (JPL) Mar 11, 2011


Trajectory of Asteroid 2005 YU55 - November 8-9, 2011. Click here for animation

Near-Earth asteroid 2005 YU55 will pass within 0.85 lunar distances from the Earth on November 8, 2011. The upcoming close approach by this relatively large 400 meter-sized, C-type asteroid presents an excellent opportunity for synergistic ground-based observations including optical, near infrared and radar data.

An animated illustration by JPL shows the Earth and moon flyby geometry for November 8th and 9th when the object will reach a visual brightness of 11th magnitude and should be easily visible to observers in the northern and southern hemispheres.

The closest approach to Earth and the Moon will be respectively 0.00217 AU and 0.00160 AU on 2011 November 8 at 23:28 and November 9 at 07:13 UT.

Discovered December 28, 2005 by Robert McMillan of the Spacewatch Program near Tucson Arizona, the object has been previously observed by Mike Nolan, Ellen Howell and colleagues with the Arecibo radar on April 19-21, 2010 and shown to be a very dark, nearly spherical object 400 meters in diameter.

Because of its approximate 20-hour rotation period, ideal radar observations should include tracks that are 8 hours or longer on multiple dates at Goldstone (November 3-11) and when the object enters Arecibo's observing window on November 8th.

Using the Goldstone radar operating in a relatively new "chirp" mode, the November 2011 radar opportunity could result in a shape model reconstruction with a resolution of as fine as 4 meters. Several days of high resolution imaging (about 7.5 meters) are also planned at Arecibo.

As well as aiding the interpretation of the radar observations, collaborative visual and near infrared observations could define the object's rotation characteristics and provide constraints upon the nature of the object's surface roughness and mineral composition.

Since the asteroid will approach the Earth from the sunward direction, it will be a daylight object until the time of closest approach. The best time for new ground-based optical and infrared observations will be late in the day on November 8, after 21:00 hours UT from the eastern Atlantic and western Africa zone.

A few hours after its close Earth approach, it will become generally accessible for optical and near-IR observations but will provide a challenging target because of its rapid motion across the sky.

Although classified as a potentially hazardous object, 2005 YU55 poses no threat of an Earth collision over at least the next 100 years. However, this will be the closest approach to date by an object this large that we know about in advance and an event of this type will not happen again until 2028 when asteroid (153814) 2001 WN5 will pass to within 0.6 lunar distances.

The report was prepared by Don Yeomans, Lance Benner and Jon Giorgini for NASA's Jet Propulsion Laboratory Near-Earth Object Program.

.


Related Links
Near-Earth Object Program
Asteroid and Comet Impact Danger To Earth - News and Science






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





DEEP IMPACT
City Tech Research Team Casts Light On Asteroid Deflection
Brooklyn NY (SPX) Jan 31, 2011
So you think global warming is a big problem? What could happen if a 25-million-ton chunk of rock slammed into Earth? When something similar happened 65 million years ago, the dinosaurs and other forms of life were wiped out. "A collision with an object of this size traveling at an estimated 30,000 to 40,000 mile per hour would be catastrophic," according to NASA researcher and New York Ci ... read more


DEEP IMPACT
Astrobotic's Mission To The Moon Releases Guide For Payload Developers

China Expects To Launch Fifth Lunar Probe Change-5 In 2017

The Great Moonbuggy Race

Venus And Crescent Moon Pair Up At Dawn

DEEP IMPACT
Testing Mars Missions In Morocco

Rover Snaps Close-Up of 'Ruiz Garcia'

Prolific NASA Orbiter Reaches Five-Year Mark

Some Of Mars' Missing CO2 May Be Buried

DEEP IMPACT
The Future For Space Missions

Voyager Seeks The Answer Blowin' In The Wind

'Facebook for scientists' an Internet hit

Mid East At Forefront Of $7.5 Billion Space Tourism Industry

DEEP IMPACT
What Future for Chang'e-2

China setting up new rocket production base

China's Tiangong-1 To Be Launched By Modified Long March II-F Rocket

China Expects To Launch Fifth Lunar Probe Chang'e-5 In 2017

DEEP IMPACT
Payload Operations Center Marks 10th Anniversary As ISS Science Command Post

We Can See Clearly Now: ISS Window Observational Research Facility

Time To Fly: SAGE III - ISS Prepped For ISS

Spacewalkers Continue To Complete Tasks

DEEP IMPACT
United Launch Alliance Successfully Launches Fourth NRO Mission In Six Months

New Dawn Arrives At Spaceport

United Launch Alliance Launches Second OTV Mission

USAF Launches Second X-37B Test Platform

DEEP IMPACT
Report Identifies Priorities For Planetary Science 2013-2022

Planetary Society Statement On Planetary Science Decadal Survey For 2013-2022

Meteorite Tells Of How Planets Are Born In A Swirl Of Dust

Planet Formation In Action

DEEP IMPACT
Made-for-Internet movie debuts on YouTube

Mideast unrest pushing up gem prices, say traders

Apple fans camp out for new iPad

Montreal newspaper to go digital




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement