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Falling NASA Satellite Could Spark Stunning Light Show
Space.com ^ | 21 September 2011 | Joe Rao

Posted on 09/22/2011 8:08:34 AM PDT by Windflier

click here to read article


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To: Rio

Oh, BTW...I was off by an hour on the time. The track in the screen shot is at 4:30pm Eastern, not 3:30. The time shown in the lower right hand box is my local time, which is Pacific.

Tried to do the time conversion before coffee. Doesn’t work real well. :)


41 posted on 09/22/2011 9:48:47 AM PDT by hoagy62 ("Polls are for strippers and cross-country skiers”~Sarah Louise Palin)
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To: Windflier

"Oh My God...They Killed Kenny!"

42 posted on 09/22/2011 9:49:10 AM PDT by dfwgator
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To: Mr. K
"Why does it travel up and down in wavy lines like that?"

A woman engineer designed the steering system

/ducking...

43 posted on 09/22/2011 9:53:25 AM PDT by Hatteras
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To: Hatteras

Dude...you’re gonna BURN for that one....


44 posted on 09/22/2011 10:08:07 AM PDT by hoagy62 ("Polls are for strippers and cross-country skiers”~Sarah Louise Palin)
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To: hoagy62

There is probably a 3 to 6 hour window where it could be earlier or later depending on what position it is in when it first starts to get significant drag...

Is the chart being continuously updated?

(BTW, thanks for the chart. I had searched for one but not found it)


45 posted on 09/22/2011 10:09:19 AM PDT by djf (Buncha sheep: A flock.. Buncha cows: A herd.. Buncha fish: A school.. Buncha baboons: A Congress..)
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To: Scythian
You know, I’ve got a bad feeling about this, really, I’m not kidding. I’m almost postive the satellite is going to fall on me. Am I logged in?

Calm down. Just make sure you have your tin foil hat on all day tomorrow. It will protect you.

46 posted on 09/22/2011 10:13:36 AM PDT by Windflier (To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
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To: Windflier

The problem is getting a handle on atmospheric density at the orbital altitude. Since they can’t do a controlled de-orbit burn the satellite is at the mercy of whatever traces of atmosphere exist at it’s current altitude. Without a way to precisely measure that at all points in the orbit, there is no way to precisely determine how much it is slowing it down until after the fact.

They can make estimates based on tracking (which is exactly what they are doing), but cannot tell exactly what part of the orbit, or even exactly which orbit it will give up the ghost and re-enter.


47 posted on 09/22/2011 10:21:00 AM PDT by 6ppc (It's torch and pitchfork time)
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To: Windflier
Just make sure you have your tin foil hat on all day tomorrow. It will protect you.

That plus the fact that the orbit doesn't come anywhere near the US tomorrow.

48 posted on 09/22/2011 10:23:04 AM PDT by 6ppc (It's torch and pitchfork time)
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To: djf

I got the track off a program called ‘Orbitron’. It was designed as freeware by a guy in Poland (of all places). Do a web search for it and you can download it yourself. It’s free and safe for your computer.

The program has a ‘Simulation mode’ where you can predict the future orbital tracks based off current data. That’s what I did by clicking through and advancing the time until tomorrow afternoon.


49 posted on 09/22/2011 10:30:33 AM PDT by hoagy62 ("Polls are for strippers and cross-country skiers”~Sarah Louise Palin)
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To: Windflier

wish list for ‘landing’ sites..

mecca tehran pyongyang UN(sorry NY)


50 posted on 09/22/2011 10:42:46 AM PDT by NormsRevenge (Semper Fi ... Godspeed .. Monthly Donor Onboard .. Obama: Epic Fail or Bust!!!)
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To: 6ppc
They can make estimates based on tracking (which is exactly what they are doing), but cannot tell exactly what part of the orbit, or even exactly which orbit it will give up the ghost and re-enter.

Thanks for that explanation, friend.

51 posted on 09/22/2011 3:19:16 PM PDT by Windflier (To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
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