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View Full Version : Asteroid 2007 TU24 close approach



HypothesisTesting
2008-Jan-29, 06:17 PM
Asteroid 2007 TU24 will be within about moon's distance Jan. 29 and is pretty big :

http://news.yahoo.com/s/ap/20080125/ap_on_sc/earth_asteroid;_ylt=AsqEKSu47BvZ9eh0t9V.Vgus0NUE

I don't see it on Torino number chart (http://neo.jpl.nasa.gov/risk/) so it's probably a zero and no chance of hitting earth ever.

The Mars asteroid will come much closer than that to Mars 1/30.

NEOWatcher
2008-Jan-29, 06:24 PM
Asteroid 2007 TU24 will be within about moon's distance Jan. 29 and is pretty big ....
Yep; done and gone...

http://www.bautforum.com/questions-answers/68964-asteroid-tu24-close.html
http://www.bautforum.com/questions-answers/69560-tu24.html
http://www.bautforum.com/universe-today-story-comments/69482-near-earth-asteroid-2007-tu24-make-close-approach-january-29-2008-a.html
http://www.bautforum.com/astrophotography/69614-deadly-asteroid-2007-tu24.html
http://www.bautforum.com/universe-today-story-comments/69585-observing-near-earth-asteroid-tu24.html

Thyla
2008-Jan-29, 11:38 PM
I'm confused. I see some places are saying 03:33 est. Was that Tuesday January 29 at 3:33 in the morning? or is it going to happen this coming morning Wednesday January 30 at 3:33 in the morning? You said it's done and gone, but I'm not sure. Can you clarify for me? I was so nervous last night, I don't want to go through that again tonight. UGh! I just see Jan 29/30 and that is confusing me.

(Yes I listened to the woowoos and it freaked me out... I'm ashamed to say)

spaceboy0
2008-Jan-30, 12:22 AM
what area of the sky, what constellation will it be near, in?

01101001
2008-Jan-30, 12:42 AM
I'm confused. I see some places are saying 03:33 est. Was that Tuesday January 29 at 3:33 in the morning?)

It happened about 16 hours ago. It's over.

Closest Earth approach was around 0335 Eastern Standard Time, EST, morning, Tuesday January 29. That's 0835 Universal Time, UT, January 29.

It's done. Traffic Report (http://www.hohmanntransfer.com/)


2007 TU24 - departing

Closest Earth approach: 1.44 LD at 0834 UTC yesterday

Here's 3 additional sources you can consult, just to be sure:

PHA Close Approaches To The Earth (http://cfa-www.harvard.edu/iau/lists/PHACloseApp.html)
NASA/JPL Near Earth Object Program news release (http://neo.jpl.nasa.gov/news/news157.html)
NEODyS (http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?objects:2007TU24;main)

NASA News: Asteroid Zooms by Earth (http://www.nasa.gov/topics/solarsystem/features/asteroid-20080129.html)


As expected, Asteroid 2007 TU24 made its closest approach to Earth at 3:33 a.m. today, Jan. 29 (12:33 a.m. Pacific time), and is now headed away from our planet. At its closest point, the asteroid was 554,209 kilometers (344,370 miles) from Earth, or roughly 1.4 times the distance between the moon and Earth.

spaceboy0
2008-Jan-30, 04:59 PM
how fast would it have been moving across the sky; how many arc degrees per hour?

01101001
2008-Jan-30, 06:09 PM
how fast would it have been moving across the sky; how many arc degrees per hour?

Article in topic Tu24 (http://www.bautforum.com/1160197-post2.html):


At its closest, it will move about 2 degrees per hour

Sky and Telescope skychart with dates and times (http://www.skyandtelescope.com/observing/home/14346437.html)


At its fastest, TU24 will be traveling 3 per hour through the "fixed" stars.