[amsat-bb] Re: Close encounters of the Asteroidal Kind

Bob- W7LRD w7lrd at comcast.net
Thu Feb 7 12:49:57 PST 2013

maybe "asteroid bounce"? (EAE) 
73 Bob W7LRD 

----- Original Message -----
From: "Vince Fiscus, KB7ADL" <vlfiscus at mcn.net> 
To: amsat-bb at amsat.org 
Sent: Thursday, February 7, 2013 7:18:47 AM 
Subject: [amsat-bb] Re: Close encounters of the Asteroidal Kind 

At 01:06 AM 2/7/2013 -0500, k3io at verizon.net wrote: 
>Next week (Feb 15) the earth will be visited by asteroid 2012 DA14 passing 
>inside the gestationary satellite orbits. To quote from 
>>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 

I know some might think this is off topic, but I enjoy seeing reports 
like these on the BB. 

Thanks Tom. 


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