[HCARC] Fw: Close encounters of the Asteroidal Kind

[Bill Tynan]

----- Original Message ----- 
From: "Edward R Cole" <kl7uw at acsalaska.net>
To: <sara-list at googlegroups.com>; <moon-net at mailman.pe1itr.com>
Sent: Thursday, February 07, 2013 1:54 AM
Subject: [Moon-Net] Fwd: [amsat-bb] Close encounters of the Asteroidal Kind


> May be of interest to eme'rs and amateur radio astronomers.
> 73, Ed - KL7UW
>
>>Date: Thu, 07 Feb 2013 01:06:02 -0500
>>From: Tom Clark <tom.k3io at gmail.com>
>>To: amsat-bb at amsat.org
>>
>>
>>Next week (Feb 15) the earth will be visited by asteroid 2012 DA14
>>passing inside the gestationary satellite orbits. To quote from
>>http://echo.jpl.nasa.gov/asteroids/2012DA14/2012DA14_planning.html,
>>>2012 DA14 was discovered by the La Sagra Sky Survey in Spain on
>>>February 23, 2012.
>>>This object will make an extremely close approach to within 0.00023
>>>AU of Earth at
>>>19:25 UT (11:25 AM PST) on February 15, 2013.  That is only 0.09
>>>lunar distances or 5.4 Earth
>>>radii from the center of the Earth.  The close approach will be
>>>about 28000 km above Earth's
>>>surface.  That's inside the distance to geosynchronous satellites
>>>but thousands of kilometers
>>>above the elevation for low-Earth-orbit spacecraft such as the
>>>International Space Station.
>>>At the time of closest approach, the asteroid will move about 0.8
>>>degrees per minute.
>>There is considerable interest in the astronomy community over plans
>>to do radar tracking of the asteroid. The Goldstone 70M dish will be
>>running MAX QRO with 435 kW.
>>
>>73 de Tom, K3IO
>>
>>
>>_______________________________________________
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