Author Topic: Fireballs, comets, meteorites, meteors and asteroids  (Read 34666 times)

enlightenme

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #345 on: March 18, 2013, 03:42:56 PM »
Thanks jrobert, very interesting!

enlightenme

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #346 on: March 19, 2013, 04:35:46 PM »

enlightenme

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #347 on: March 19, 2013, 04:37:21 PM »
MSM (CNN to be exact), seems to finally be taking an interest in the incoming asteroids.

Washington (CNN) -- The good news is that the chances an asteroid big enough to destroy a continent or all of civilization will hit Earth this year are only one in 20,000, a congressional panel learned Tuesday.
 
The bad news is the government needs to spend billions of dollars in coming years for new technology to prevent such a possible catastrophe, regardless of the low probability, experts told the House Science, Space and Technology Committee.
 
"The odds are very small, but the potential consequences of such an event are so large, it makes sense to take the risk seriously," contended John Holdren, who directs President Barack Obama's Office of Science and Technology Policy.
 
Current efforts to detect and analyze possible space threats like the meteor that exploded over Russia last month, injuring more than 1,000 people and causing millions of dollars in damages, have made progress in identifying the threats, NASA Administrator Charles Bolden told the committee.
 
He said scientists have identified 95% of asteroids more than a half-mile in diameter -- the kind that threaten human existence if they strike Earth, like the six-mile-wide one believed to have wiped out dinosaurs 65 million years ago -- and found none on a collision course with the planet.
 
However, the detection efforts have been less successful for smaller meteors still capable of causing major loss of life and damage, such as the one over Russia.
 
Only 10% of meteors more than 150 yards wide -- dubbed "potential city killers" by Holdren -- have been detected, meaning more than 10,000 are out there without our knowledge, he said.
 
If scientists detected a major asteroid headed for Earth now, it would take at least five years to develop an effective defense system to either alter its course or possibly destroy it, no matter how much money was spent, according to Holdren and Bolden.
 
Government plans to bolster detection and mitigation capabilities include an infrared sensor that would orbit Venus, as well as a laser system or other method to deflect any threatening meteor away from Earth, they said.
 
"We really need to have space-borne assets," said Bolden of the infrared sensor that would cost more than $500 million.
 
Another NASA goal endorsed by Obama is to send an astronaut to an asteroid for the first time in history by 2025, a project that would cost $2 billion, he said.
 
Asked by panel members about the effects of forced spending cuts this year due to the inability of Congress to agree on fiscal issues, all the witnesses described heavy impacts.
 
"Just about my every working moment these days is consumed with this topic," Gen. William Shelton, commander of the U.S. Air Force Space Command, said about the spending cuts that took effect March 1. He added that "we are clearly less capable."
 
Bolden noted that NASA's budget for detecting Near Earth Objects has multiplied in recent years to reach more than $20 million in 2012. Now, he said, Congress needs to at least maintain such funding to prevent stagnation or, even worse, atrophy.
 
"This is really important and it has to be continuous," he said.
http://www.cnn.com/2013/03/19/politics/congress-space-threats/index.html?hpt=hp_c3

Jimfarmer

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #348 on: March 19, 2013, 06:31:27 PM »
Here is an excerpt from the first link that was given in
Quote
Posted by: jrobert69
« on: March 18, 2013, 02:46:41 PM »

Here is good link-  Found it over at the crazies website.

http://amsmeteors.org/fireballs/fireball-tracking-system-analysis/

and another
http://amsmeteors.org/fireball_event/2013/

[start excerpts]
Fireball Tracking System Analysis

Analysis of the AMS Citizen Science Based Fireball Tracking System
...
Introduction

The American Meteor Society (AMS) was founded in 1911 and pioneered the study of visual meteor observations. The AMS has accepted reports of bright fireballs and bolides from the public since inception and online since 2005. All online reports are analyzed, approved, and grouped into events based on the location of the witnesses and the time of the sighting. The events are published on the AMS website along with a map displaying the witness location, sighting vectors and other details. Usually when enough reports are submitted, a rough trajectory of the fireball meteor can be plotted (see Appendix). Some of the fireballs reported to the AMS are associated with meteor showers while others are the bolide type, originating from the asteroid belt and sometimes causing sonic booms and leaving meteorites. A small percentage of reports are associated with the re-entry of space debris. Another small percentage of reports are non-meteor sightings. The AMS fireball report is a free service offered to the public and scientific community. The purpose of this paper is to present a summary of the fireball reports logged with the AMS from January 1, 2005 through February 27th, 2013.
Data Overview

As the graph below illustrates, the number of reports filed with the AMS has been increasing over the last few years. The level of traffic on the site, the popularity of the site and improvements to the software are all contributing to more reports being filed. More people are able to find the site and more easily complete the report application. These factors contribute to an increase in witness reports being filed with the AMS.


Not only are more reports being submitted, but also more unique events are being created. The following is a graph of unique fireball events registered by the AMS each year from January 2005 through February 27, 2013.

[end excerpts]

enlightenme

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #349 on: March 20, 2013, 05:10:52 AM »
Hmmm, I just noticed this NEO on the list from RSOE.  Isn't this a rather close and large one?? (or atleast close?)

(2010 GM23)   12th April 2013   24 day(s)   0.0099   3.9   31 m - 69 m   13.14 km/s   47304 km/h

http://hisz.rsoe.hu/alertmap/index2.php

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #350 on: March 20, 2013, 05:43:20 AM »
Hmmm, I just noticed this NEO on the list from RSOE.  Isn't this a rather close and large one?? (or atleast close?)

(2010 GM23)   12th April 2013   24 day(s)   0.0099   3.9   31 m - 69 m   13.14 km/s   47304 km/h

http://hisz.rsoe.hu/alertmap/index2.php

Enlightenme, good catch!
I looked it up on NeoJpl Upcoming Close Approaches and that date is April 13.
These charts change periodically.

Info below:


http://neo.jpl.nasa.gov/ca/  Upcoming Close Approaches

(2010 GM23)  Close Approach data: 
http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010%20GM23;orb=1;cov=0;log=0;cad=1#cad

Date                     Time uncetainty   Body      Nom. Dist       Min. Distance   Max. distance

2013-Apr-13 23:00   2_06:15      Earth          0.00993           0.00221       0.130711

Nom Dist - Nominal Distance

Yowbarb Note:  The Condition Code is 7

Explanation: "...orbit uncertainty estimate 0-9, with 0 being good, and 9 being highly uncertain."




Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #351 on: March 23, 2013, 01:09:35 PM »
This may be posted somewhere on the Town Hall. Marshall and someone else (?) mentioned
meteors or meteorites over the east coast.
Here is the story I found,
Yowbarb        Video on page: Possible meteor spotted in Delaware first a you tube video I found
...

Fire in the Sky : Green Meteor lights up the East Coast from Virginia to Boston (Mar 22, 2013) 5:26    462 views

http://youtu.be/SzYOXdXaC3k

.............................

...
http://www.cnn.com/2013/03/23/us/east-coast-meteor-sightings/index.html?hpt=hp_inthenews

Meteor lights up East Coast -- and social media
 
Did you see the meteor? Upload your photos and video at CNN iReport.
 
(CNN) -- The streaking ball of fire Friday night above the East Coast did not, alas, signal the end to civilization as we know it.
 
Though you might get that sense from social media.
 
The sky lit up along the U.S. Eastern Seaboard with reports of "a thin streak of blue-greenish-white" from people like Chip Guy, who was driving in eastern Maryland when he and his family he spotted it.
 
"It didn't last more than eight or nine seconds, then it disappeared," said Guy, a spokesman for Sussex County, Delaware. "Frankly, I didn't think too much of it."
 
But his tune changed once he posted something about the presumed meteor on a local social media web page, which triggered a quick and hearty response.
 
Welcome to the year of the comet
 
That was just the tip of the online iceberg. Through Friday night, new reports of meteor sightings appeared every few seconds on Twitter, some of them from the metropolises of New York City and Washington.
 
"OMG I saw a real meteor in the Brooklyn's sky," wrote one person on Twitter, with the handle Curious Sergey. "It's all over the news now! I thought it is some kind of firework..."
 
The Federal Aviation Administration fielded calls about a meteor from Virginia to Maine, said agency spokeswoman Arlene Salac.
 
So what exactly was it?
 
Michael Kucharek, a spokesman for NORAD, said his agency heard about the sightings, too, and can confirm it was not from anything man-made, such as a plane or falling satellite.
 
On Saturday, Bill Cooke from NASA's Meteoroid Environment Office explained that the bright, fast-flying object was, in fact, a meteor.
 
The space agency's Jet Propulsion Laboratory defines a meteor as "light phenomena" from a meteoroid -- which is itself a comet or asteroid orbiting the sun -- that "enters the Earth's atmosphere and vaporizes."
 
It made for quite a show, producing a fireball as bright as a full moon and spurring more than 630 visual reports to be submitted to the American Meteor Society, as it soared southwest into the Atlantic Ocean.
 
But just because it was bright doesn't mean it was big. The meteor was one yard in diameter, about the size of an exercise ball, when it entered the atmosphere over eastern Pennsylvania, said Cooke.
 
That's still big enough potentially to produce meteorites -- which are meteoroids, or fragments thereof, that do manage to hit the Earth -- before burning completely. If it did, though, they fell harmlessly into the Atlantic, according to Cooke.
 
As anyone who has seen a shooting star can attest, it's hardly unprecedented for otherworldly objects to enter the Earth's atmosphere. And some of them do strike our planet, though they tend to be small when they do and strike unpopulated areas on land or plunge into the world's oceans.
 
There are exceptions, like the massive asteroid that many experts believe killed off dinosaurs. More recently, a meteor exploded over the steppes of southwestern Russia on February 15, a blast that scientists at Canada's University of Western Ontario estimated had the energy of about 30 early nuclear bombs.
 
The related flash and boom shattered glass in buildings and left about 1,000 people hurt, authorities said.
 
There were no confirmed reports Friday night that the greenish streak spotted by so many actually impacted anywhere.
 
Even if it didn't, the mere possibility was enough to send chills down some stargazers' spines.
 
"Seriously, after that massive meteor in california a few weeks ago, the one that hit russia, and now this hugee one tonight," wrote a Twitter user by the name of Olivia, referring to the Russia incident and a mass shooting star sighting on the West Coast last night. "Little scaryy."

By Chandler Friedman and Greg Botelho, CNN
 
updated 3:37 PM EDT, Sat March 23, 2013

Video on page: Possible meteor spotted in Delaware


enlightenme

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #352 on: May 01, 2013, 04:36:38 AM »
And another meteorite causing damage...

Meteorite Slams into Connecticut House

Sean Breslin Published: Apr 24, 2013, 1:36 PM EDT


Via an NBC Connecticut screenshot, the meteorite that hit a Connecticut man's home on April 19 is seen.
 
Celestial events can be awe-inspiring, as long as they remain at a distance and don't come crashing through your home.
 

Play Video  (See video at link below)
 

The Lyrid meteor shower was little more than a close call for Larry Beck, whose Wolcott, Conn. house was struck by what appeared to be a baseball-sized rock in the middle of the night, late Friday, April 19. It was originally thought to be a piece of concrete from a runway that was stuck in a plane and then dropped from the sky, according to reports included in a Universe Today story.

After the rock was sent off for further analysis, it was confirmed to be a meteorite by a Yale official, reports NBC Connecticut. According to the same story, many residents in Wolcott reported rattling windows and hearing a loud boom around the time the meteorite came slamming through Beck's roof, further supporting the findings.

NECN said Beck took the space debris over to a friend's house -- meteorologist John Bagioni -- to get a second opinion before sending it off to the lab. However, as weather fans know, meteorology isn't the study of meteorites or meteors, so the incredible discovery wasn't official until Yale announced their findings.

http://www.weather.com/news/science/space/meteorite-hits-house-20130424

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #353 on: May 11, 2013, 08:49:35 AM »
And another meteorite causing damage...

Meteorite Slams into Connecticut House

Sean Breslin Published: Apr 24, 2013, 1:36 PM EDT


Via an NBC Connecticut screenshot, the meteorite that hit a Connecticut man's home on April 19 is seen.
 
Celestial events can be awe-inspiring, as long as they remain at a distance and don't come crashing through your home.
 
Play Video  (See video at link below)
 
The Lyrid meteor shower was little more than a close call for Larry Beck, whose Wolcott, Conn. house was struck by what appeared to be a baseball-sized rock in the middle of the night, late Friday, April 19. It was originally thought to be a piece of concrete from a runway that was stuck in a plane and then dropped from the sky, according to reports included in a Universe Today story.

After the rock was sent off for further analysis, it was confirmed to be a meteorite by a Yale official, reports NBC Connecticut. According to the same story, many residents in Wolcott reported rattling windows and hearing a loud boom around the time the meteorite came slamming through Beck's roof, further supporting the findings.

NECN said Beck took the space debris over to a friend's house -- meteorologist John Bagioni -- to get a second opinion before sending it off to the lab. However, as weather fans know, meteorology isn't the study of meteorites or meteors, so the incredible discovery wasn't official until Yale announced their findings.

http://www.weather.com/news/science/space/meteorite-hits-house-20130424
..............................................................................
Enlightenme thanks for posting this. I hadn't heard about this one.
Meanwhile, just found out on SusPicious Observers a meteorite hit the ground in Africa. Will find out more. Posted the 3MINNews for today the 11th.
- Yowbarb
...............................................................................


http://youtu.be/My_I6cbjCXQ



Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #354 on: May 18, 2013, 09:44:58 PM »
http://www.csmonitor.com/Science/2013/0518/Moon-hit-by-boulder-size-meteoroid-causing-explosion-visible-from-earth-video?nav=672149-csm_article-editorsPicks

Moon hit by boulder-size meteoroid, causing 'explosion' visible from earth (+video)

If you had been looking up at the moon at the right moment on March 17, you could have seen a one-second burst of heat caused by the impact of a large meteoroid.

By Mark Trumbull, Staff writer / May 18, 2013

If you had been looking up at the moon at the right moment on March 17, you could have seen an unusual flash of light – a one-second burst of heat caused by the impact of a large meteoroid.
No telescope required.

“For about one second, the impact site was glowing like a 4th magnitude star,” NASA said in reporting the news Friday.

This meteoroid was the size of a small boulder, and was travelling very fast. NASA estimates the size at 0.3 to 0.4 meters wide, and the speed at 56,000 m.p.h.

The resulting explosion  delivered a force equal to 5 tons of TNT.

NASA puts a footnote on the word “explosion.” The bright light wasn’t combustion, since the moon has no oxygen atmosphere. Rather, it was the glow of molten rock and hot vapors after an impact of large kinetic force.

That said, this was the biggest such “explosion” in eight years of close monitoring of the moon’s surface.

And it’s not that meteoroids on the lunar surface are rare.

The moon lacks a protective atmosphere like Earth’s, in which meteoroids typically burn up. Lunar meteor showers have turned out to be more common than expected, with hundreds of detectable impacts per year.

On March 17, the pyrotechnics on the moon coincided with an active night for meteors in Earth’s atmosphere as well.

NASA’s Space Exploration Policy eventually calls for extended astronaut stays on the moon, so tracking meteor activity has long-term relevance.

“Identifying the sources of lunar meteors and measuring their impact rates gives future lunar explorers an idea of what to expect,” the space agency said in announcing the bright explosion Friday. “Is it safe to go on a moonwalk, or not?  The middle of March might be a good time to stay inside.”


Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #355 on: May 19, 2013, 11:51:05 PM »
Marshall found out about this tonight.
Here is the link and article he found on Vine Of Life:
,   http://vineoflife.net/ 

- Yowbarb
...


http://vineoflife.net/2013/05/19/four-fireballs-seen-in-u-s-skies-in-last-24-hours-another-coming-experts-say-good-idea-to-stock-up-just-in-case/

Four Fireballs seen in U.S Skies in Last 24 Hours & Another Coming. Experts say good idea to “stock up”, just in case

By Lyn Leahz on May 19, 2013   

In the last 24 hours the AMS has received confirmed reports about 4 unique fireball events all occurring near 4:00 AM UTC time. The most recent event occurred in Arkansas and Missouri on May 19th near 3:37 UTC. At the same time 3:37 UTC 4 witnesses reported a fireball in Arizona. The distance between these two locations would inhibit witnesses from observing the same fireball from both locations. On May 18th two large fireball meteors were also spotted within an hour of each other, one over the central east coast and another in Colorado. Below is a table [ image ] of the events in question. American Meteor Society






Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #356 on: May 20, 2013, 12:15:05 AM »
http://www.amsmeteors.org/  American Meteor Society Home Page

http://www.amsmeteors.org/2013/05/four-fireballs-at-four-in-last-24-hours/

Four fireballs in last 24 hours

Fireball Logs
 

Fireballs
Report a Fireball
Fireball Logs
http://www.amsmeteors.org/fireballs/fireball-report/

Each year since 2005, the American Meteor Society receives hundreds of fireball reports. Browse the articles below and take a look at all the fireball reports.
•Pending Reports — these are reports that have been submitted, but not yet reviewed, approved or linked to a particular Fireball.
•Fireball Sightings Log 2013
•Fireball Sightings Log 2012
•Fireball Sightings Log 2011
•Fireball Sightings Log 2010
•Fireball Sightings Log 2009
•Fireball Sightings Log 2008
•Fireball Sightings Log 2007
•Fireball Sightings Log 2006
•Fireball Sightings Log 2005

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #357 on: May 21, 2013, 02:06:53 PM »
Posting a portion of the current part of the 2013 Fireball Log.
No event reported today 21 May, as of 5 PM EDT.
- Yowbarb


http://www.amsmeteors.org/fireball_event/2013/   American Meteor Society

2013 Fireball Log

Yowbarb

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #358 on: May 26, 2013, 10:20:49 PM »
Yowbarb Note: Earlier today, Marshall let us know about this May 23rd fireball event but I missed his msg.
Here is the basic info:
(from google alerts)

Arkansas, Missouri, Arizona, Colorado: Four Fireballs At 4:00 AM ...
By Mike Hankey, American Meteor Society – “In the last 24 hours the AMS has received confirmed reports about 4 unique fireball events all occurring near 4:00 ...
midnightwatcher.wordpress.com/.../arkansas-missouri-arizona-...





ASEEKERTOO

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Re: Fireballs, comets, meteorites, meteors and asteroids
« Reply #359 on: May 28, 2013, 02:24:10 PM »
     I am pretty sure what I am fixing to say has already been posted somewhere else but it is worth noting that
around the same time these 4 fireballs were reported a BUILDING sized meteor hit the MOON and it was
visible from Earth if one had been lucky enough to have been looking at the moon.
     How cool would that have been to see it ! :)
Ancient Prophecy appears to be fulfilled in the Nightly News.

 

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