(meteorobs) OT -- Asteroid 2007 TU24

[meteoreye at comcast.net]

We're quite safe :)
The 1.4 lunar distance is quite accurate, and this object has been removed from the NASA NEO Impact Risk page due to a zero risk of impact.

Wayne

-------------- Original message -------------- 
From: "Jan Verfl" <verfl.meteors at seznam.cz> 

> Have once seen one such asteroid, it's a stunning sight not to miss - 10 
> deg/hour means 1 arcmin in 10 seconds, you will actually SEE it moving 
> unlike anything natural on the sky (except for the meteors, fo course:) 
> 
> Let us only hope the trajectory is correct and it does not get too 
> "on-topic" to our forum ... 
> 
> Jan 
> 
> > -----Original Message----- 
> > From: meteorobs-bounces at meteorobs.org 
> > [mailto:meteorobs-bounces at meteorobs.org] On Behalf Of 
> > meteoreye at comcast.net 
> > Sent: Monday, January 21, 2008 7:34 PM 
> > To: meteorobs at meteorobs.org 
> > Subject: (meteorobs) OT -- Asteroid 2007 TU24 
> > 
> > On the 29th and 30th of January, we will have an opportunity 
> > to observe a rapidly moving asteroid. 
> > 
> > 2007 TU24 will be moving over 10 degrees per hour at it's 
> > most rapid, and will reach a peak magnitude of +10.2 at that 
> > time. It is a fairly large (250-550 meter) asteroid, and will 
> > pass about 1.4 Lunar Distances from earth (0.0037 AU; 552,540 
> > km; 343,333 miles; 325 million smoots.) 
> > 
> > Here's a rough outline of the path, as of now. The current 
> > orbit is based on 104 observations from discovery on Oct 11 
> > 2007 through Jaunuary 18th. The last few observations 
> > included have made only minor changes to the orbit, so it 
> > appears quite robust. If any substantial changes occur I'll 
> > post an update. It should be brighter than 11th magnitude 
> > from 0300 UT on the 29th through 1000 UT on the 30th. 
> > 
> > 00UT Jan 29 (7PM EST Jan 28)- Triangulum-Andromeda border; 
> > moving about 3 degrees per hour. 
> > 01UT-04 UT in Andromeda. 
> > 05 UT (00 Jan 29 EST, 21 Jn 28 PST) Andromeda-Perseus border 
> > moving about 4 degrees per hour. 
> > 06-08 UT in Perseus, accelerating to 5 degrees per hour. 
> > Closest approach is at about 0800 UT 
> > 09 UT in Cassiopia 
> > 10UT In Camelopardalis until 1800 UT 
> > Peak motion and brightness in Camelopardalis about 10 degrees 
> > per hour is during daylight for north america at about 1600 
> > UT. It should be dark in Asia by then. 
> > It moves into Ursa Major around 1900 UT and travels through 
> > the Great Bear's head toward beta UMA. 
> > For the US east coast as darkness on the 29th (00UT Jan 30) 
> > falls the motion will be back down to 4 degrees per second. 
> > It will come very close to beta UMA (the lower corner of the 
> > Big Dipper's Bowl furthest from the handle) from 0800-0900 UT 
> > on the 30th. 
> > 
> > Wayne 
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