|  | | | 
08.09.2011, 12:33
|  | Forum Legend | | Join Date: Nov 2006 Location: Emmenbruecke
Posts: 2,709
Groaned at 24 Times in 22 Posts
Thanked 2,754 Times in 1,191 Posts
| | | Falling Satellite
Maybe insurance against falling space derbis is worth it after all... They don't know when or where this one'll come down.
Huge Defunct Satellite to Plunge to Earth Soon | Quote: |  | | | Heads up! That's the word from NASA today (Sept. 7) given the impending re-entry of a 6.5-ton satellite through Earth's atmosphere.
The huge Upper Atmosphere Research Satellite (UARS) is expected to re-enter Earth's atmosphere in an uncontrolled fall in late September or early October. Much of the spacecraft is expected to burn up during re-entry, but some pieces are expected to make it intact to the ground, NASA officials said.
The U.S. space agency will be taking measures to inform the public about the pieces of the spacecraft that are expected to survive re-entry. | | | | | | | This user would like to thank cyrus for this useful post: | | 
08.09.2011, 13:08
| | Forum Legend | | Join Date: Aug 2008 Location: OOO
Posts: 3,602
Groaned at 84 Times in 58 Posts
Thanked 1,626 Times in 986 Posts
| | | Re: Falling Satellite
What if some of it falls on neutral Swiss ground?
Can we keep it, the debris, and open a museum with it?
| 
08.09.2011, 13:12
|  | Forum Veteran | | Join Date: Mar 2008 Location: my own prison
Posts: 1,338
Groaned at 10 Times in 10 Posts
Thanked 1,023 Times in 509 Posts
| | | Re: Falling Satellite | Quote: | |  | | | What if some of it falls on neutral Swiss ground?
Can we keep it, the debris, and open a museum with it? | | | | | Guess so.
Haven't you heard about finders keepers and all...
So, I'm off to get my Falling Space Debris Detector Radar Thingy out of the basement...
| | The following 2 users would like to thank TheWolverine for this useful post: | | 
08.09.2011, 13:19
|  | Forum Veteran | | Join Date: Nov 2009 Location: Zurich
Posts: 514
Groaned at 34 Times in 17 Posts
Thanked 638 Times in 293 Posts
| | | Re: Falling Satellite | Quote: | |  | | | So, I'm off to get my Falling Space Debris Detector Radar Thingy out of the basement... | | | | | Indeed, one can never be too safe... | 
08.09.2011, 13:52
|  | Senior Member | | Join Date: Jul 2006 Location: Buchs, SG
Posts: 390
Groaned at 5 Times in 4 Posts
Thanked 429 Times in 178 Posts
| | | Re: Falling Satellite | Quote: | |  | | | What if some of it falls on neutral Swiss ground?
Can we keep it, the debris, and open a museum with it? | | | | | But wouldn't it be charred, possibly melted and deformed beyond recognition ?
Interestingly, there will be quite a bit of crap to collect, as they state "That appraisal indicated a surviving mass of 1,170 pounds (532 kilograms) falling within a debris footprint length of some 500 miles (800 kilometers)." Luckily, NASA claims that "The risk to public safety or property is extremely small, and safety is NASA's top priority," noted a NASA website dedicated to the re-entry." | 
08.09.2011, 13:56
|  | Forum Veteran | | Join Date: May 2011 Location: Zürich
Posts: 1,173
Groaned at 2 Times in 2 Posts
Thanked 1,603 Times in 608 Posts
| | | Re: Falling Satellite
After reading in the Blick about a villa with pavement done with fossilized dinossaur bones (AWEEEEEESOME) and meteorite stone (AWEEEEEEEESOME) I think the idea of a "charred, possibly melted and deformed beyond recognition" satelite piece would probably turn out to be an awesome modern art sculpture to put in my future dinossaur living room!
I'll join the sattelite debris search team! I need me a new piece of art!
| 
08.09.2011, 13:58
|  | Senior Member | | Join Date: Jul 2006 Location: Buchs, SG
Posts: 390
Groaned at 5 Times in 4 Posts
Thanked 429 Times in 178 Posts
| | | Re: Falling Satellite | Quote: | |  | | | I think the idea of a "charred, possibly melted and deformed beyond recognition" satelite piece would probably turn out to be an awesome modern art sculpture to put in my future dinossaur living room | | | | | But then again you might have to lug the 532kg chunk up the stairs.
| 
08.09.2011, 14:02
| | Forum Legend | | Join Date: Aug 2008 Location: OOO
Posts: 3,602
Groaned at 84 Times in 58 Posts
Thanked 1,626 Times in 986 Posts
| | | Re: Falling Satellite | Quote: | |  | | | But wouldn't it be charred, possibly melted and deformed beyond recognition ?
| | | | | Most likely yes yet you could always put up pictures of before, after and now... everything ends up as garbage anyway.
Anyway, other things are falling down from the sky too like those big ice chunks from airplanes ... god knows what else is gonna come down on our heads next.
| 
08.09.2011, 14:02
|  | Forum Veteran | | Join Date: May 2011 Location: Zürich
Posts: 1,173
Groaned at 2 Times in 2 Posts
Thanked 1,603 Times in 608 Posts
| | | Re: Falling Satellite | Quote: | |  | | | But then again you might have to lug the 532kg chunk up the stairs. | | | | | You think I can call NASA and get some build up instructions like for IKEA pieces?  Then I can comfortably let it be transported in smaller pieces... | 
08.09.2011, 14:04
|  | Newbie 1st class | | Join Date: Sep 2011 Location: Ruschlikon
Posts: 15
Groaned at 0 Times in 0 Posts
Thanked 36 Times in 12 Posts
| | | Re: Falling Satellite | Quote: | |  | | | ".....and safety is NASA's top priority,"" | | | | | I for one am extremely relieved by this statement. It was only the other day as I was playing golf during a thunderstorm in my metal trousers that I began to worry about being hit by a defunct satellite. Hurray for NASA!
| 
08.09.2011, 14:04
|  | Forum Legend | | Join Date: Dec 2007 Location: England
Posts: 3,660
Groaned at 8 Times in 7 Posts
Thanked 3,018 Times in 1,552 Posts
| | | Re: Falling Satellite
I just hope that any falling debris doesn't leave chemtrails! | 
08.09.2011, 14:07
|  | Forum Legend | | Join Date: Nov 2006 Location: Emmenbruecke
Posts: 2,709
Groaned at 24 Times in 22 Posts
Thanked 2,754 Times in 1,191 Posts
| | | Re: Falling Satellite | Quote: | |  | | | You think I can call NASA and get some build up instructions like for IKEA pieces? Then I can comfortably let it be transported in smaller pieces...  | | | | | You can get a kit here, and get it launched too.
| | The following 2 users would like to thank cyrus for this useful post: | | 
08.09.2011, 14:18
| | Member | | Join Date: Aug 2011 Location: Zurich
Posts: 241
Groaned at 9 Times in 7 Posts
Thanked 92 Times in 58 Posts
| | | Re: Falling Satellite | Quote: | |  | | | Guess so.
Haven't you heard about finders keepers and all... 
So, I'm off to get my Falling Space Debris Detector Radar Thingy out of the basement... | | | | |
532kg & Terminal velocity.
Earth pulls at a constant acceleration of 9.81 meters/second. Without any wind resistance, you’ll fall 9.81 meters/second faster every second. 9.81 meters/second the first second, 19.62 meters/ second in the next second, etc.
Stuth, you are going to know about it. No need for a detector, just look out the window for the large hole full of Taiwanese components.
| 
08.09.2011, 14:22
| | Member | | Join Date: Aug 2011 Location: Zurich
Posts: 241
Groaned at 9 Times in 7 Posts
Thanked 92 Times in 58 Posts
| | | Re: Falling Satellite
Where the hell is Superman when you need him.
| 
08.09.2011, 14:28
|  | Forum Veteran | | Join Date: Mar 2008 Location: my own prison
Posts: 1,338
Groaned at 10 Times in 10 Posts
Thanked 1,023 Times in 509 Posts
| | | Re: Falling Satellite | Quote: | |  | | | 532kg & Terminal velocity.
Earth pulls at a constant acceleration of 9.81 meters/second. Without any wind resistance, you’ll fall 9.81 meters/second faster every second. 9.81 meters/second the first second, 19.62 meters/ second in the next second, etc. | | | | | <Geek hat on>
Well...not quite. The acceleration depends on many other things and is limited by the mass of the falling object, the height and the acceleration by the pulling object (earth in this case).
Considering a CS area of roughly 0.5 sqm and a mass of 532 kg, drag coefficent of about 2 (assuming it is a box type thingy) a density of 1.5 kg/cu meter and gravity of 1 g...
Max velocity reached would be around 83.4 m/s.
For comparison, an airplane has a velocity of about 272.22 m/s.
The kinetic energy of the said object (mass * acc. by gravity * height) would be roughly 1.85 x 10^6 joules.
For comparison, 1 g of TNT has 4.184×10^3 Joules. So almost like a kilo of TNT.
<Geek hat off>
__________________ "You picked the wrong house, Bub" | | The following 2 users would like to thank TheWolverine for this useful post: | | 
08.09.2011, 15:00
|  | Forum Legend | | Join Date: Nov 2008 Location: .
Posts: 3,773
Groaned at 37 Times in 31 Posts
Thanked 5,874 Times in 2,467 Posts
| | | Re: Falling Satellite | Quote: | |  | | | <Geek hat on>
...
<Geek hat off> | | | | | Some seriously dodgy science there, m'boy | 
08.09.2011, 15:24
|  | Forum Veteran | | Join Date: Jan 2009 Location: La Cote
Posts: 2,303
Groaned at 20 Times in 17 Posts
Thanked 4,209 Times in 1,589 Posts
| | | Re: Falling Satellite
I remember something like this when I was a wee lad in 1st grade | | The following 4 users would like to thank Mud for this useful post: | | 
08.09.2011, 15:37
|  | Forum Veteran | | Join Date: May 2011 Location: Zurich
Posts: 555
Groaned at 1 Time in 1 Post
Thanked 658 Times in 276 Posts
| | | Re: Falling Satellite
Anyone up for some satellite bingo? Everyone pick a latitude/longitude intersection - whole numbers only - and the person who picks the spot closest to the largest remaining pieces gets crowned King or Queen of the Space Debris. If we weren't spread all over the country we could have made it a bit more interesting with an entry fee of 1 chuff per point chosen and the money used for prizes.
| | This user would like to thank TitanTurbo10 for this useful post: | | 
08.09.2011, 15:39
|  | Forum Legend | | Join Date: Jun 2008 Location: Baden
Posts: 3,095
Groaned at 33 Times in 28 Posts
Thanked 4,545 Times in 1,776 Posts
| | | Re: Falling Satellite | Quote: | |  | | | I remember something like this when I was a wee lad in 1st grade | | | | | How was life without microprocessors? | | This user would like to thank Ouchboy for this useful post: | | 
08.09.2011, 15:52
|  | Forum Veteran | | Join Date: Jan 2009 Location: La Cote
Posts: 2,303
Groaned at 20 Times in 17 Posts
Thanked 4,209 Times in 1,589 Posts
| | | Re: Falling Satellite | Quote: | |  | | | How was life without microprocessors?  | | | | | I knew how to use a Curta when I was 6. | | The following 2 users would like to thank Mud for this useful post: | | |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | | | Thread Tools | | | | Display Modes | Linear Mode |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | All times are GMT +2. The time now is 15:01. | |