|
|
|
Advertisement
|
|
« on: 02/15/2013 06:14 AM » |
|
|
|
|
|
|
|
catdlr
|
|
« Reply #1 on: 02/15/2013 06:52 AM » |
|
Here is another from a closer vantage point: Meteor Hits Russia Giant Meteor shower Over Russia Published on Feb 14, 2013 Giant Meteor Explodes Over Russia meteorite may be part of Giant Asteroid that nearly Collided with earth Meteor shower reported in eastern Russia https://www.youtube.com/watch?v=BO_uo0bPbu4A powerful blast rocked the Russian region of the Urals early on Friday with bright objects, identified as possible meteorites, falling from the sky, emergency officials said.
"It was definitely not a plane," an emergency official told Reuters, without elaborating. "We are gathering the bits of information and have no data on the casualties so far."
No one was hurt in a meteor shower, an emergency official told RIA-Novosti. Local residents said they witnessed burning objects in the sky of the Chelyabinsk and Sverdlovsk regions.
A Reuters witness in Chelyabinsk reported hearing a huge blast early in the morning and feeling a shockwave in a 19-storey building in the town center.
The sounds of car alarms and breaking windows could be heard in the area, the witness said, and mobile phones were working intermittently.
"Preliminary indications are that it was a meteorite rain," an emergency official told RIA-Novosti. "We have information about a blast at 10,000-meter (32,800-foot) altitude. It is being verified."
The trace from a falling object could be seen in Yekaterinburg, some 200 kilometers (125 miles) southeast of Chelyabinsk, another Reuters witness said.
|
|
|
|
|
|
Bubbinski
|
|
« Reply #3 on: 02/15/2013 07:43 AM » |
|
Lots of crazy, amazing videos out there. Apparently an airburst or strike on Chelyabinsk, reports of a zinc factory being damaged and over 100 injured. Some on Twitter are saying it would have come from the wrong direction for a companion object of DA14.
As far as air defenses shooting it down, I'm not sure how that would even be possible. Maybe a Russian equivalent of that Air Force 747 with the laser in the nose? But I'm not sure shooting at it just to break it up into more pieces that hit the ground would be advisable.
|
|
|
|
|
|
mlindner
|
|
« Reply #5 on: 02/15/2013 07:55 AM » |
|
Lots of crazy, amazing videos out there. Apparently an airburst or strike on Chelyabinsk, reports of a zinc factory being damaged and over 100 injured. Some on Twitter are saying it would have come from the wrong direction for a companion object of DA14.
As far as air defenses shooting it down, I'm not sure how that would even be possible. Maybe a Russian equivalent of that Air Force 747 with the laser in the nose? But I'm not sure shooting at it just to break it up into more pieces that hit the ground would be advisable.
No its most certainly a meteorite. Probably not related to DA14. Different direction of travel (from looking at videos). It's also many hours in advance which puts it in a different orbit.
|
|
|
|
Jorge
|
|
« Reply #6 on: 02/15/2013 08:22 AM » |
|
No its most certainly a meteorite. Probably not related to DA14. Different direction of travel (from looking at videos). It's also many hours in advance which puts it in a different orbit.
I think it's too soon to rule out a relationship between this object and 2012DA14. It's suspected that many asteroids are weak conglomerations loosely bound by gravity and can be "calved" into multiple objects by a close flyby. If 2012DA14 "calved" during a previous flyby (perhaps years or decades ago) it wouldn't take much of a nudge for the fragments to wind up far apart in the along-track (velocity-vector) direction; small velocity differences propagate into large position differences over time. The different flyby directions at perigee don't tell us much, either. For departure trajectories we can sketch an entire family of outgoing hyperbolae with asymptotes parallel to the desired departure vector, but with completely different earth-centered inclinations. See the attached scan from Wiesel (1989) but imagine the arrows pointing the other way, to see how two asteroids with slightly different ecliptic inclinations could wind up with radically different (perhaps even 180 degrees different) earth-centered inclinations at perigee. I'm not claiming the two objects are related, just saying we can't rule it out until the trajectory of this new object is traced back to find the asymptote of its approach hyperbola and compare it to 2012DA14.
|
|
|
|
|
|
|
|
Star One
|
|
« Reply #9 on: 02/15/2013 09:04 AM » |
|
There's a thread over in space Science, but I think it might be prudent to merge or move that thread to general or live event, because this could be an event. Especially if they find fragments or the like.
What with the asteroid close encounter tonight and taking a positive from this event, it must be doing a lot for pushing this whole issue up the agenda & maybe as a result some will follow the attention for getting things moving on the early warning front.
|
|
|
|
Damon Hill
|
|
« Reply #10 on: 02/15/2013 09:15 AM » |
|
Quite a contrail, too. Must have been a lot of water and other volatiles, perhaps a small comet?
Tunguska, anyone?
|
|
|
|
Dalhousie
|
|
« Reply #11 on: 02/15/2013 09:45 AM » |
|
|
|
|
|
DLR
|
|
« Reply #12 on: 02/15/2013 09:51 AM » |
|
I wonder whether it's connected to the Pope's abdication?  In all seriousness, itt shows what kind of energy even a small object will release upon impact. Hope this event lead to further efforts by space agencies to get more serious about asteroid identification and deflection. Deputy Prime Minister Rogozin already mentioned that Russia will look into that further.
|
|
|
|
Targeteer
|
|
« Reply #13 on: 02/15/2013 10:00 AM » |
|
|
|
|
|
|
|
