Asteroids & Comets

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Profile Gary CharpentierCrowdfunding Project Donor
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Message 1609482 - Posted: 5 Dec 2014, 14:38:49 UTC - in response to Message 1609438.  
Last modified: 5 Dec 2014, 14:39:00 UTC

wiggo wrote:
klik wrote:

well...if you show me the Multiqoute option, I would "gladly" use it! :)

and yes, I'll try to behave...

Now if you read the Use BBCode tags to format your text link that is in each posting page it will simply give you what info you need to know (it's not rocket science). ;-)

Cheers.

There is also http://www.bbcode.org/reference.php but BOINC does not implement the entire standard.
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Profile Chris SCrowdfunding Project Donor
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Message 1609856 - Posted: 6 Dec 2014, 11:45:37 UTC

Both the links from Wiggo and Gary should give you enough info to do what you need. BB coding is even easier than BASIC to master, and even that is pretty simple.
    • It's all based upon beginning a command in square brackets and ending the command with a forward slash in square brackets.

    • It's like learning another language such as French. First decide what you want to say in English then "convert" it to French.

Hope that may have been of some help.

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KLiKProject Donor
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Message 1610687 - Posted: 8 Dec 2014, 7:44:32 UTC

OK, guys, I'll use the manual labor type of multi-quote...

But please, can someone update the forum? So it has Multi-quote feature...
;)

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Profile Chris SCrowdfunding Project Donor
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Message 1610715 - Posted: 8 Dec 2014, 9:29:55 UTC

There is a gripes/Kudos thread over in number crunching for suggestions.
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Profile LynnProject Donor
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Message 1611943 - Posted: 10 Dec 2014, 22:41:03 UTC - in response to Message 1610715.  

what about the ones they can't find?

NASA: Recently spotted asteroid no risk for Earth

WASHINGTON — NASA says a newly spotted 1,300-foot wide asteroid is not a threat to hit Earth, despite recent media reports.

NASA’s Near Earth Object program manager Donald Yeomans said the asteroid, discovered in October by Russian scientists, won’t even get that close to Earth in the next 150 years. And it isn’t a threat to any other planet, either.

http://www.washingtonpost.com/politics/nasa-recently-spotted-asteroid-no-risk-for-earth/2014/12/09/e59796f0-7fdb-11e4-b936-f3afab0155a7_story.html
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Profile Julie
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Message 1612205 - Posted: 11 Dec 2014, 11:50:14 UTC

what about the ones they can't find?



I miss Orbit@Home...
rOZZ
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Profile William Rothamel
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Message 1612279 - Posted: 11 Dec 2014, 16:51:20 UTC - in response to Message 1514685.  

we would all go to Alaska and live on Whale Blubber, caribou, elk, seals, salmon and Arctic Char.

Yum.
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Profile Chris SCrowdfunding Project Donor
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Message 1612281 - Posted: 11 Dec 2014, 16:52:08 UTC

EUCH !!!
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Profile LynnProject Donor
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Message 1627627 - Posted: 14 Jan 2015, 19:56:23 UTC - in response to Message 1612281.  

You don't have to duck, but a good-sized asteroid will make a fairly close flyby of Earth at the end of the month.

Asteroid to swoop by Earth on January 26

Space objects are hot topics these days. The European Space Agency's Rosetta mission has gotten everybody excited about comets. Asteroid-wrangling is on NASA's to-do list.

Now, we have an extraterrestrial visitor on the way, but it won't quite be knocking on the door of our humble planet; it will just be waving as it zips by in the distance.

http://www.cnet.com/news/asteroid-to-swoop-by-earth-on-january-26/
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Message 1628116 - Posted: 15 Jan 2015, 20:23:04 UTC

The B612 Foundation headed up by Astronauts Ed Lu and Rusty Schweickart, among others, proposes to put a Sentinel satellite in an orbit that is roughly opposite that of Venus. It will conduct a 6.5 year survey of asteroids by detecting their infrared signatures. The back of Sentinel always points toward the sun which powers it's solar panels. The satellite looks outward into our solar system. This means it will be scanning for it's entire 6.5 year life - not hindered by our atmosphere, weather or sun light. Sentinel is to be built by Ball Aerospace. B612 intends to build, launch and operate Sentinel strictly through public funding.

[url]http://sentinelmission.org [/url]
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Profile LynnProject Donor
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Message 1628207 - Posted: 16 Jan 2015, 0:23:02 UTC - in response to Message 1628116.  

The B612 Foundation headed up by Astronauts Ed Lu and Rusty Schweickart, among others, proposes to put a Sentinel satellite in an orbit that is roughly opposite that of Venus. It will conduct a 6.5 year survey of asteroids by detecting their infrared signatures. The back of Sentinel always points toward the sun which powers it's solar panels. The satellite looks outward into our solar system. This means it will be scanning for it's entire 6.5 year life - not hindered by our atmosphere, weather or sun light. Sentinel is to be built by Ball Aerospace. B612 intends to build, launch and operate Sentinel strictly through public funding.

[url]http://sentinelmission.org [/url]


Thanks John. We need all the help to protect earth.

http://sentinelmission.org
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Message 1628208 - Posted: 16 Jan 2015, 0:25:11 UTC - in response to Message 1628207.  

From NASA.

NEOWISE: A Yearlong Look at the Sky

NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) spacecraft discovered and characterized 40 near-Earth objects (NEOs) in the first year after the mission was re-started in December 2013. Eight of the discoveries have been classified as potentially hazardous asteroids (PHAs), based on their size and how close their orbits could come to Earth's orbit.

http://www.nasa.gov/jpl/neowise/happy-new-year-neowise-a-yearlong-look-at-the-sky/index.html
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KLiKProject Donor
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Message 1628286 - Posted: 16 Jan 2015, 6:42:44 UTC - in response to Message 1628207.  

The B612 Foundation headed up by Astronauts Ed Lu and Rusty Schweickart, among others, proposes to put a Sentinel satellite in an orbit that is roughly opposite that of Venus. It will conduct a 6.5 year survey of asteroids by detecting their infrared signatures. The back of Sentinel always points toward the sun which powers it's solar panels. The satellite looks outward into our solar system. This means it will be scanning for it's entire 6.5 year life - not hindered by our atmosphere, weather or sun light. Sentinel is to be built by Ball Aerospace. B612 intends to build, launch and operate Sentinel strictly through public funding.

[url]http://sentinelmission.org [/url]


Thanks John. We need all the help to protect earth.

http://sentinelmission.org


Wrong point to pick!

Lagrange points L1-L3 are unstable equilibriums...only L4 & L5 are stable equilibriums, so only those can be used for checking up the Solar system!
;)

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Message 1628364 - Posted: 16 Jan 2015, 11:00:50 UTC - in response to Message 1628286.  
Last modified: 16 Jan 2015, 11:02:09 UTC

AFAIK the DSCOVR observatory (GoreSAT) to be launched Jan 29 atop a SpaceX rocket from Cape Canaveral is sent to L1.
Tullio
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Message 1628647 - Posted: 16 Jan 2015, 21:48:07 UTC
Last modified: 16 Jan 2015, 21:52:56 UTC

While L1-L3 are unstable equilibrium they are probably good enough for the three or four years required for this mission. Don't forget that there are going to be other forces acting on the vessel than just that define the L1-L3 points - solar radiation on the panels, the thrust from the heat exhaust from the cooling system being but two, so even in L4 & L5 station keeping thrusters would be required.
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Profile John Chrzastek
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Message 1628778 - Posted: 17 Jan 2015, 1:30:42 UTC

Sincere thanks rob smith and KLiK. I had no idea there were such things as Lagrange Points. Wow. An eye opener. -John Chrzastek
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Message 1628883 - Posted: 17 Jan 2015, 9:21:53 UTC

You would be amazed how many people don't, but to be fair they don't get mentioned a lot.
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Profile John Chrzastek
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Message 1630618 - Posted: 21 Jan 2015, 14:47:59 UTC

[url]http://www.jpl.nasa.gov/news/news.php?feature=4441 [/url]

Nice graphic from NASA showing approach of asteroid 2004 BL86. It will reach it's closest point to earth on January, 26 2015. Asteroid is 1/3 of a mile (across?) and will come within 7450,000 miles (1.2 km) of earth. It will be observed by radar from Gold Stone & AO.

((If anyone knows how to post a working URL please advise ... clicking the URL button just seems to insert " [url] " hypertext markers before and after the link.
Thanks in advance. -John))
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Message 1630619 - Posted: 21 Jan 2015, 14:49:12 UTC

Correction ... that should read 745,000 miles :-(
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Message 1630622 - Posted: 21 Jan 2015, 14:53:12 UTC - in response to Message 1630619.  

Correction ... that should read 745,000 miles :-(

and 1.2 million km.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message boards : Science (non-SETI) : Asteroids & Comets


 
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